CA2504916A1 - Cholesterol absorptions inhibitors for the treatment of autoimmune disorders - Google Patents

Cholesterol absorptions inhibitors for the treatment of autoimmune disorders Download PDF

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CA2504916A1
CA2504916A1 CA002504916A CA2504916A CA2504916A1 CA 2504916 A1 CA2504916 A1 CA 2504916A1 CA 002504916 A CA002504916 A CA 002504916A CA 2504916 A CA2504916 A CA 2504916A CA 2504916 A1 CA2504916 A1 CA 2504916A1
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alkyl
group
aryl
independently selected
substituted
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John R. Ii Erbey
Jay S. Fine
Enrico P. Veltri
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Merck Sharp and Dohme Corp
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    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K45/00Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
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    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/335Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/365Lactones
    • A61K31/366Lactones having six-membered rings, e.g. delta-lactones
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    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/397Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having four-membered rings, e.g. azetidine
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Abstract

The present invention provides methods for treating or preventing an autoimmune disorder and associated conditions by administering at least one sterol absorption inhibitor and compositions, therapeutic combinations and methods including: (a) at least one sterol absorption inhibitor; and (b) at least one autoimmune disorder treatment which can be useful for preventing or treating an autoimmune disorder and associated conditions.

Description

CHOLESTEROL ABSORPTIONS INHIBITORS FOR THE TREATMENT OF AUTOIMMUNE DISORDERS
CROSS-REFERENCE TO RELATED APPLICATIONS
This application claims the benefit of priority from U.S. Provisional Patent ,.
Application Serial No. 60/493,318, filed August 7, 2003 and U.S. Provisional Patent Application Serial No. 60/424,165, filed November 6, 2002.
io BACKGROUND OF THE INVENTION
Field of the Invention The present invention relates to methods and therapeutic combinations for is treating and .preventing an autoimmune disorder in a subject comprising the administration of sterol absorption inhibitor(s).
Description The pathogenesis of autoimmune diseases such as rheumatoid arthritis, 2o Crohn's disease, ulcerative colitis, psoriasis and systemic lupus erythmatosus is mediated by the aberrant activation, differentiation and trafficking of leukocytes in response to tissue self antigens. There are two main types of leukocytes:
phagocytes and lymphocytes. Lymphocytes, which include T-cells, B-cells and natural killer (NK) cells, play a large role in autoimmune reactions.
2s Plasma membranes of many cell types, including leukocytes contain domains enriched in cholesterol, plant sterols and sphingolipids called lipid rafts.
The formation and organization of lipid rafts within cell membranes of leukocytes has been demonstrated to play a critical role in immune responses as diverse as T-cell activation, antigen presentation, adhesion molecule function and chemokine receptor 3o signaling, as will now be discussed in further detail below.
Both cholesterol and sterols derived from plants have been shown to be essential to the structure and organization of lipid rafts, and to the subsequent downstream signaling events mediated by these rafts (see, Kabouridis, et al.
(2002) Eur. J. Immunol. 30: 954-963; Bowers and London (2000) J. Biol. Chem. 275:

-2_ 17224; Burack, et al. (2002) J. Immunol. 169: 2837-2841; and Vu, et al. (2001 ) J.
Biol. Chem. 276: 33540-33546).
It is known that lipid raft microdomains are important for T-cell receptor (TCR)-mediated activation of T-cells. Signaling proteins are associated with lipid rafts in T-s cells and the TCR ifiself associates with lipid rafts (see Hreisi V. (2003) Immunol.
Rev. 191: 1438-1464 and Janes et al. (2000) Immunology 12: 23-34).
Furthermore, it has been shown that the integrity of lipid rafts containing the kinase Lck (a key signaling protein) is essential for the initiation of peripheral blood T-cell lymphoblasts (PBT) signal transduction through the TCR. It is also known that key signaling to proteins such as LcK and LAT are physically sequestered into distinct lipid rafts in a resting T-cell. After activation, these signaling molecules coinhabit the same region within the plasma membrane, indicating that the sequestration of these proteins may function to regulate the initiation of T-cell signal transduction (Schade and Levine (2002) The Journal of Immunology 168: 2233-2239). Similarly, lipid rafts have been is demonstrated to be essential for B lymphocyte activation (Cheng et al (2001 ) Semin Immunol 13:107-114), particularly in the context of Syk and CD45 tyrosine phosphatase colocalization (Gupta and DeFranco (2003) Mol Biol Cell 14:432-444).
Given the role of lipid rafts in both T-cell and B-cell antigen receptor signaling, disrupting the formation and/or organization of these rafts will likely inhibit the 2o aberrant activation of leukocytes in response to tissue self antigens that occurs in autoimmune disorders.
The importance of lipid rafts on antigen presenting cells (APCs) and their role in major histocompatability (MHC) Class II - restricted antigen presentation is also known. T-cells use their antigen-specific receptors (TCRs) to recognize antigens 2s (including self-antigens) bound to MHC molecules. MHC Class II molecules are known to be present in raft-like microdomains on APCs and perturbing APC raft integrity profoundly inhibits the ability of APCs to stimulate antigen-specific T-cells.
Moreover, the localization of MHC Class II molecules into rafts on APCs allows APCs to efficiently present antigens (including self antigens) to the TCR of antigen-3o specific T-cells, even at low concentrations of the antigen (Anderson, et al. (2000) Nature Immunology 1: 156:162). Furthermore, modification of a membrane cholesterol level has been previously shown to affect expression and clustering of Class I HLA molecules on the surface of JY human lymphoblasts (Bodnar, et al.
(1996) Immunol. Lett. 54: 221-226). In view of these studies, it is likely that disrupting lipid rafts can inhibit the ability of APCs to stimulate autoreactive T-cells with autoantigens, and would be of benefit in treating/ preventing autoimmune s disorders.
Adhesion molecules, such as integrins, are molecules on the surFace of cells that assist leukocytes in interacting with their environments through adherence. In particular, integrins are a group of glycoproteins expressed on both leukocytes and endothelial cells that are predominately involved in the aberrant leukocyte trafficking to and extravasation associated with autoimmune diseases. Integrins promote adherence of leukocytes to the surface of endothelial cells on the surface of blood vessels through which leukocytes circulate. Studies have shown that lipid rafts play a role in the regulation of integrin function (Leitinger and Hogg (2002) J.
Cell Sci.
115: 963-972). Moreover, it is known that x5/31 integrin functions can be modulated is by the phospholipid and cholesterol contents of cell membranes (Gopalakrishna, et al. (2000) J. Cell. Biochem. 77: 517-528). Therefore, it is likely that the aberrant leukocyte trafficking and extravasation which occurs in autoimmune disorders can be inhibited by disrupting lipid raft formation and/or organization in the plasma membrane of leukocytes.
2o Chemokines are chemoattractant cytokines that mediate chemotaxis of leukocytes involved in autoimmune diseases. Excess levels of these cytokines are linked to autoimmune disorders. The receptors for chemokines are mainly expressed on immune and inflammatory cells, such as T and B lymphocytes, dendritic cells, monocytes/macrophages and granulocytes, in which ligand-receptor 2s interactions lead to cell migration. Chemokine expression is either induced at autoimmune disease sites to recruit T-cells that mediate tissue destruction, or is constitutive in lymphoid organs (i.e., lymph nodes and spleen) to orchestrate the response to antigens, including autoantigens, that drive autoimmune diseases.
Studies have indicated that cholesterol (a major component of lipid rafts) is essential 3o for macrophage inflammatory protein 1~3 binding and conformational integrity of CC
chemokine receptor 5 (Nguyen and Taub (2002) Blood 99: 4298-4306). This suggests that disrupting lipid rafts in the plasma membranes of immune cells will likely have an effect on ligand-chemokine receptor interactions that lead to the chemotaxis of leukocytes associated with autoimmune diseases.
Furthermore, reports have drawn a correlation between cholesterol and the development of rheumatoid arthritis in human populations (Heliovaara, et al.
(1996) s Br. J. Rheumatology 35: 255-257; Winyard, et al. (1993) Ann. Rheumatic Dis.
52:
677-680). A correlation between cholesterol and rheumatoid arthritis has also been shown in studies with pre-clinical rodent models (Hamer, et al. (2002) J.
Cell. Mol.
Med. 6: 407-414; Nair, et al. (1998) Eur. J. Oral. Sci. 106: 644-650). Studies have also established an association between plant sterols and arthritis (Bhattacharyya to (1984) 136: 32-34; and Bjorkhem and Skrede In The Metabolic Basis of Inherited Disease, 6th ed. Scriver, et al., eds. McGraw-Hill, New York (1989), pp. 1283-1302).
Moreover, a relationship between plant sterols and lymphocyte activation has also been observed (Bouic, et al. (1996) Int. J. Immunopharmacol. 18: 693-700).
There is a need in the art for compositions and treatments which modulate is cholesterol and plant sterol levels for the treatment of autoimmune disorders by disrupting lipid raft formation and organization within the plasma membranes of leukocytes.
SUMMARY OF THE INVENTION
2o In one embodiment, there is provided a method of treating or preventing autoimmune disorder in a subject, comprising the step of administering to a subject in need of such treatment an effective amount of at least one sterol absorption inhibitor or a pharmaceutically acceptable salt or solvate thereof.
A method of treating or preventing an autoimmune disorder in a subject is 2s further provided, comprising the step of administering to a subject in need of such treatment an effective amount of at least one sterol absorption inhibitor represented by Formula (II) below:

OH
l ,-N
OH
O
F
or a pharmaceutically acceptable salt or solvate thereof.
In another embodiment, the present invention provides a composition comprising: (a) at least one sterol absorption inhibitor or a pharmaceutically acceptable salt or solvate thereof and (b) at least one other agent useful for the treatment of an autoimmune disorder.
Therapeutic combinations also are provided comprising: (a) a first amount of at least one sterol absorption inhibitor or a pharmaceutically acceptable salt or io solvate thereof; and (b) a second amount of at least one other agent useful for the treatment of an autoimmune disorder, wherein the first amount and the second amount together comprise a therapeutically effective amount for the treatment or prevention of an autoimmune disorder in a subject.
Pharmaceutical compositions for the treatment or prevention of an is autoimmune disorder in a subject, comprising a therapeutically effective amount of the above compounds, compositions or therapeutic combinations and a pharmaceutically acceptable carrier also are provided.
Other than in the operating examples, or where otherwise indicated, all numbers expressing quantities of ingredients, reaction conditions, and so forth used 2o in the specification and claims are to be understood as being modified in all instances by the term "about."
DETAILED DESCRIPTION
2s As discussed above, the pathogenesis of autoimmune disorders is mediated by the aberrant activation, difFerentiation and trafficking of leukocytes in response to tissue self-antigens. Autoimmune reactions can often have fatal consequences.
They can cause the destruction of vital tissue which manifests in the development of chronic autoimmune diseases. The driving forces in the progression of these diseases are autoreactive immune cells. In most cases, these autoreactive cells are s CD4+ T-cells which somehow escaped the self tolerance control mechanisms of the immune system. In non-pathogenic situations, CD4+ T-cells act as T helper cells, which control or mediate the activation and differentiation of other immune cells such as cytotoxic CD8+ T-cells, NK cells, granulocytes, macrophages and B-cells.
However, in the situation of chronic autoimmune diseases, CD4+ T-cells are no io longer just mediators, but are rather key players of the autoimmune response. In particular, they are either directly or indirectly responsible for the characteristic tissue destruction that occurs in autoimmune diseases, which is triggered by the recognition of autoantigens. These autoantigens are derived from self proteins of the attacked tissue and are presented to the autoreactive CD4+ T-cells by antigen-ls presenting cells (APCs), such as macrophages, dendritic cells or B-cells.
In addition, aberrant T cell-dependent or T cell-independent antibody production by activated B
cells plays a critical role in initiating and amplifying tissue damage in autoimmune disorders.
As described above, the formulation and organization of lipid rafts within the 2o cell membranes of leukocytes has been demonstrated to play a critical role in T-cell and B-cell activation, antigen presentation, adhesion molecule function and chemokine receptor signaling, each of which is associated with the pathogenesis of autoimmune disorders. Both cholesterol and plant sterols have been shown to be essential to the structure and organization of lipid rafts, and to the subsequent 2s downstream signaling events mediated by these rafts. Therefore, depleting the amount of cholesterol trafficked to cells will likely disrupt the formation and organization of lipid rafts in the cell membranes of autoreactive T-cells and other leukocytes involved in autoimmune reactions. When cholesterol absorption in the intestines is reduced by whatever means, less cholesterol is delivered to the liver.
3o The consequence of this action is a decreased hepatic lipoprotein (VLDL) production and an increase in the hepatic clearance of plasma cholesterol, mostly as LDL.
Mammalian cells acquire a large fraction of their cholesterol by receptor-mediated endocytosis of serum lipoproteins, such as LDL. LDL particles carry cholesterol predominantly as cholesteryl esters. Following endocytosis, cholesteryl esters are transported to late endosomes and lysosomes where they are hydrolyzed to release cholesterol for use by the cell as an essential component of the lipid rafts of cell s membranes, for example. Thus, any means of reducing the intestinal absorption of cholesterol (and/or plant sterols) will likely disrupt the formation and organization of lipid rafts in the cell membranes of leukocytes involved in autoimmune reactions.
Therefore, sterol absorption inhibitors can provide a therapeutically effective method of treating and/or preventing aufioimmune disorders.
io As used herein, the term "autoimmune disorders" is intended to include any abnormal physical or mental condition, including diseases, which are of an autoimmune etiology, as well as any symptoms which are subject evidence of a disease or disorder.
"Lipid rafts," "raft-like microdomains," and the like as defined herein refer to is subdomains within the plasma membrane of manycell types, including leukocytes, which are enriched in cholesterol, sterols derived from plants and sphingolipids.
They exist as distinct, liquid-ordered regions of the membrane that are resistant to extraction with non-ionic detergents and exhibit less fluidity than the surrounding plasma membrane due to the presence of cholesterol.
20 "Leukocytes" as defined herein are white blood cells produced by the immune system to help defend the body against infection. The different types of leukocytes include neutrophils, lymphocytes (e.g. T-cells, B-cells and natural killer (NK
cells), monocytes, macrophages, eosinophils, and basophils.
U.S. Patents Nos. 5,767,115, 5,624,920, 5,656,624 and 5,688,787 (each of 2s which is incorporated by reference herein), respectively, disclose hydroxy-substituted azetidinone compounds and substituted ~-lactam compounds useful for inhibiting the absorption of cholesterol, thereby lowering cholesterol levels and/or inhibiting the formation of cholesterol-containing lesions in mammalian arterial walls. U.S.
Patents Nos. 5,846,966 and 5,661,145 (both incorporated by reference herein), respectively, 3o disclose hydroxy-substituted azetidinone compounds or substituted ~3-lactam compounds in combination with HMG CoA reductase inhibitors for preventing or _$_ treating atherosclerosis and reducing plasma cholesterol levels. Such compounds can also be useful in lowering C-reactive protein levels in subjects.
According to the present invention, these and other sterol absorption inhibitors discussed in detail below can be useful in preventing or treating an autoimmune s disorder and its associated conditions. Such autoimmune disorders include, but are not limited to, the following: Alopecia Areata, Ankylosing Spondylitis, Antiphospholipid Syndrome, aplastic anemia, myelodysplastic syndromes, paroxysmal nocturnal hemoglobulinemia, pure red cell aplasia, chronic neutropenias, amegakaryocytic thrombocytopenia, antiphospholipid syndromes, autoimmune to thrombocytopenia, autoimmune hemolytic syndromes, antiphospholipid syndromes, autoimmune gastritis, achlorhydria, Autoimmune Addison's Disease, Autoimmune Diabetes, Autoimmune Hemolytic Anemia, Autoimmune Hepatitis, Autoimmune hypophysitis, Autoimmune orchiditis, autoimmune ovarian failure, Behcet's Disease, Bullous Pemphigoid, Cardiomyopathy, Celiac Sprue-Dermafiitis, Cicatrical is pemphigoid, Chronic Fatigue Immune Dysfunction Syndrome (CFIDS), Chronic Inflammatory Demyelinating Polyneuropathy, Interstitial cystitis, Churg-Strauss Syndrome, Cicatricial Pemphigoid, CREST Syndrome, Cold Agglutinin Disease, Crohn's Disease, Dermatitis herpetiformis, Discoid Lupus, Drug-induced autoimmune disorders, Endometriosis, Epidermolysis bullosa acquisita, Essential Mixed 2o Cryoglobulinemia, Fibromyalgia-Fibromyositis, Glomerulonephritis, Good Pasture Syndrome, Graft Versus Host Disease, Graves' Disease, Guillain-Barre, Hashimoto's Thyroiditis, Idiopathic Inflammatory Myopathies, Idiopathic Pulmonary Fibrosis, Idiopathic Thrombocytopenia Purpura (ITP), IgA Nephropathy, Insulin Dependent Diabetes, Juvenile Arthritis, Lichen Planus, Systemic Lupus Erythmatosus , 2s Meniere's Disease, Metal-induced autoimmunity disorders, Mixed Connective Tissue Disease, Multiple Sclerosis, Myasthenia Gravis, Myocarditis, Myositis, Optic neuritis, Painless/postpartum thyroiditis, Peripheral nerve vasculitis, Pemphigus Foliaceus, Pemphigus Vulgaris, Pernicious Anemia, Polyarteritis Nodosa, Polychondritis, Polyglandular Syndromes, Polymyalgia Rheumatica, Polymyositis and 3o Dermatomyositis, Postinfectious autoimmune disorders, Primary Agammaglobulinemia,~~Primary Biliary Cirrhosis, Psoriasis, Psoriatic Arthritis, Reactive Arthritis, Raynaud's Phenomenon, Reiter's Syndrome, Rheumatic Fever, _g_ Rheumatoid Arthritis, Sarcoidosis, Scleritis, Scleroderma, Sjogren's Syndrome, Stiff Man Syndrome, Takayasu Arteritis, Temporal Arteritis/Giant-cell Arteritis, Ulcerative Colitis, Uveitis, Vasculitis, Vitiligo, and Wegener's Granulomatosis.
In one embodiment, the present invention is directed to compositions, s pharmaceutical compositions, therapeutic combinations, kits and methods of treatment using the same comprising at least one (one or more) sterol absorption inhibitor(s). Suitable sterol absorption inhibitors include substituted azetidinone sterol absorption inhibitors, substituted ~-lactam sterol absorption inhibitors or combinations thereof as discussed in detail below. As used herein, "sterol to absorption inhibitor" means a compound capable of inhibiting the absorption of one or more sterols, including but not limited to, cholesterol and phytosterols (such as sitosterol, campesterol, stigmasterol and avenosterol), when administered in a therapeutically effective (sterol absorption inhibiting) amount to a subject, such as a mammal or human.
is In a preferred embodiment, sterol absorption inhibitors useful in the compositions, therapeutic combinations and methods of the present invention are represented by Formula (I) below:

Are-Xm-(C)q-Yp (C)r zp Ar3 R~ R3 N
~Ar2 20 or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein, in Formula (I) above:
Ar1 and Ar2 are independently selected from the group consisting of aryl and R4-substituted aryl;
Ar3 is aryl or R~-substituted aryl;
2s X, Y and Z are independently selected from the group consisting of -CH2-, -CH(lower alkyl)- and -C(dilower alkyl)-;
R and R2 are independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9 and -O(CO)NR6R~;
R~ and R3 are independently selected from the group consisting of hydrogen, lower alkyl and aryl;
q is 0 or 1; r is 0 or 1; m, n and p are independently selected from 0, 1, 2, 3 or s 4; provided that at least one of q and r is 1, and the sum of m, n, p, q and r is 1, 2, 3, 4, 5 ar 6; and provided that when p is 0 and r is 1, the sum of m, q and n is 1, 2, 3, 4 or 5;
R4 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5086, -O(CO)NR6R~, to -NR6R7, -NR6(CO)R~, -NR6(CO)OR9, -NR6(CO)NR~R8, -NR6SO~R9, -COOR6, -CONR6R~, -CORE, -S02NR6R~, S(O)o_zR9, -O(CHz)~_~o-COOR6, -O(CHz)~_~oCONR6R', -(lower alkylene)COOR6, -CH=CH-COOR6, -CF3, -CN, -NOz and halogen;
R5 is 1-5 substituents independently selected from the group consisting of 1s -OR6, -O(CO)R6, -O(CO)OR9, -O(CHz)~_50R6, -O(CO)NR6R~, -NR6R', -NR6(CO)R', -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6S02R9, -COOR6, -CONR6R7, -CORE, -S02NR6R7, S(O)o_zR9, -O(CHz)~-~o'COOR6, -O(CHz)~-~oCONR6R~, -(lower alkylene)COOR6 and -CH=CH-COOR6;
2o R6, R' and R$ are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl; and R9 is lower alkyl, aryl or aryl-substituted lower alkyl.
Preferably, R4 is 1-3 independently selected substituents, and R5 is preferably 1-3 independently selected substituents.
2s In a preferred embodiment, a sterol absorption inhibitor of Formula (I) useful in the compositions, therapeutic combinations and methods of the present invention is represented by Formula (II) (ezetimibe) below:

F
or a pharmaceutically acceptable salt or solvate thereof. The compound of Formula (Il) can be in anhydrous or hydrated form. The compound of Formula (II) is s commercially available in a pharmaceutical formulation ZETIA~ from MSP
Pharmaceuticals, Inc.
As used herein, the term "alkyl" or "lower alkyl" means straight or branched alkyl chains having from 1 to 6 carbon atoms and "alkoxy" means alkoxy groups having 1 to 6 carbon atoms. Non-limiting examples of lower alkyl groups include, for to example methyl, ethyl, propyl, and butyl groups. Where an alkyl chain joins two other variables and is therefore bivalent, the term alkylene is used.
"Aryl" means an aromatic monocyclic or multicyclic ring system comprising about 6 to about 14 carbon atoms, preferably about 6 to about 10 carbon atoms, such as phenyl, naphthyl, indenyl, tetrahydronaphthyl or indanyl.
is The statements wherein, for example, R, R~, RZ and R3 are said to be independently selected from a group of substituents mean that R, R1, R2 and R3 are each independently selected, but also that where an R, R1, R2 and R3 variable occurs more than once in a molecule, each occurrence is independently selected (e.g., if R is 20 -OR6, wherein R6 is hydrogen, R2 can be -OR6 wherein R6 is lower alkyl).
Those skilled in the art will recognize that the size and nature of the substituent(s) will affect the number of substituents that can be present.
Compounds of Formula I can be prepared by a variety of methods well known to those skilled in the art, for example such as are disclosed in U.S. Patents Nos.
2s 5,631,365, 5,767,115, 5,846,966, 6,207,822, PCT Patent Application No.

and PCT Patent Application WO 93/02048, each of which is incorporated herein by reference, and in the Example below.
Alternative sterol absorption inhibitors useful in the compositions, therapeutic combinations and methods of the present invention are represented by Formula (III) s below:
R~
i Are-A-Yq C-Zp Ar3 R~
O N~Ar~
or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein, in Formula (III) above:
to Ar1 is R3-substituted aryl;
Ar2 is R4-substituted aryl;
Ar3 is R5-substituted aryl;
Y and Z are independently selected from the group consisting of -CH2 , -CH(lower alkyl)- and -C(dilower alkyl)-;
is A is selected from -O-, -S-, -S(O)- or -S(O)2-;
R1 is selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9 and -O(CO)NR~R'; R2 is selected from the group consisting of hydrogen, lower alkyl and aryl; or R1 and R2 together are =O;
qisl,2or3;
2o p is 0, 1, 2, 3 or 4;
R5 is 1-3 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)~_~OR9, -O(CO)NR6R', -NR6R', -NR6(CO)R', -NR6(CO)OR9, -NR6(CO)NR'Rs, -NR6S02-lower alkyl, -NR6S0z aryl, -CONR6R', -CORE, -S02NR6R', S(O)o_2-alkyl, S(O)o_2 aryl, -O(CH2)1-1o-COOR6, -O(CH2)1-2s ~oCONR6R', o-halogeno, m-halogeno, o-lower alkyl, m-lower alkyl, -(lower alkylene)-COOR6, and -CH=CH-COOR6;

R3 and Rø are independently 1-3 substituents independently selected from the group consisting of R5, hydrogen, p-lower alkyl, aryl, -N02, -CF3 and p-halogeno;
R6, R' and R$ are independently selected from the group consisting of s hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl; and R9 is lower alkyl, aryl or aryl-substituted lower alkyl.
Methods for making compounds of Formula III are well known to those skilled in the art. Non-limiting examples of suitable methods are disclosed in U.S.
Patent No. 5,688,990, which is incorporated herein by reference.
io In another embodiment, sterol absorption inhibitors useful in the compositions, therapeutic combinations and methods of the present invention are represented by Formula (IV):

~.i A
Ar1-R1-Q ~ , O N~Ar'2 (IV) is or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein, in Formula (lV) above:
A is selected from the group consisting of R2-substituted heterocycloalkyl, R~-substituted heteroaryl, R2-substituted benzofused heterocycloalkyl, and R2-substituted benzofused heteroaryl;
2o Ar' is aryl or R3-substituted aryl;
Ar2 is aryl or R4-substituted aryl;
Q is a bond or, with the 3-position ring carbon of the azetidinone, forms the \RI-(R6)a spiro group (R7)b ; and R' is selected from the group consisting of:

-(CH2)q-, wherein q is 2-6, provided that when Q forms a spiro ring, q can also be zero or 1;
-(CH~)e-G-(CHZ)r , wherein G is -O-, -C(O)-, phenylene, -NR$- or -S(O)p_2-, a is 0-5 and r is 0-5, provided that the sum of a and r is 1-6;
s -(C2 C6 alkenylene)-; and -(CH2)f V-(CH2)g-, wherein V is C3 C6 cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6;
R5 is selected from:
I I I I I I I
-CH-, -C(C1-C6 alkyl)-, -CF-, -C(OH)-, -C(C6H4-R9)-,-N-, or-+NO- ;
to R6 and R7 are independently selected from the group consisting of -GHQ , -GH(C~-C6 alkyl)-, -C(di-(C~-C&) alkyl), -CH=CH- and -C(C'-C6 alkyl)=CH-; or R5 together with an adjacent R6, or R5 together with an adjacent R', form a -CH=CH- or a -CH=C(C~-C6 alkyl)- group;
a and b are independently 0, 1, 2 or 3, provided both are not zero; provided is that when R6 is -CH=CH- or -C(C~-C6 alkyl)=CH-, a is 1; provided that when R' is -CH=CH- or -C(C~-C6 alkyl)=CH-, b is 1; provided that when a is 2 or 3, the R6's can be fihe same or different; and provided that when b is 2 or 3, the Re's can be the same or different;
and when Q is a bond, R1 also can be selected from:

I i i -M-Yd-R1 Zri , -Xm-(C)S-Yn (C)t-Zp or -Xl-(G)~-Yk S(O)o_2-where M is -O-, -S-, -S(O)- or -S(O)2 ;
X, Y and Z are independently selected from the group consisting of -CH2 , -CH(C~-C6 alkyl)- and -C(di-(C~-C6) alkyl);
R1~ and R12 are independently selected from the group consisting of 25 -OR14, -O(CO)R14, -O(CO)OR~6 and -O(CO)NR'4R15, R1' and R~3 are independently selected from the group consisting of hydrogen, (C~-C6)alkyl and aryl; or R1~ and R~~ together are =O, or R12 and together are =O;
d is 1, 2 or 3;
s h is 0, 1, 2, 3 or 4;
s is 0 or 1; t is 0 or 1; m, n and p are independently 0-4; provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6; provided that when p is 0 and t is 1, the sum of m, s and n is 1-5; and provided that when p is 0 and s is 1, the sum of m, t and n is 1-5;
vis0or1;
j and k are independently 1-5, provided that the sum of j, k and v is 1-5;
R2 is 1-3 substituents on the ring carbon atoms selected from the group consisting of hydrogen, (C~-C~o)alkyl, (C2 C~o)alkenyl, (C2 C~o)alkynyl, (C3 C6)cycloalkyl, (C3-C6)cycloalkenyl, R1'-substituted aryl, R1'-substituted benzyl, ~s R1'-substituted benzyloxy, R1'-substituted aryloxy, halogeno, -NR~4R~~, NR'4R'~(C~
C6 alkylene)-, NR'4R15C(O)(C~-C6 alkylene)-,-NHC(O)R16, OH, C~-C6 alkoxy, OC(O)R'6, -COR'4, hydroxy(C~-C6)alkyl, ~(C~-C6)alkOXy(C~-C6)alkyl, NO2, -S(O)o-2816, _ SO2NR14R15 and -(C~-C6 alkylene)COOR14; when R2 is a substituent on a o~
(CH2) 1-2 2o heterocycloalkyl ring, R is as defined, or is =O or o ; and, where R is a substituent on a substitutable ring nitrogen, it is hydrogen, (C~-C6)alkyi, aryl, (C~-C alkox , ar lox , (C -C alk Icarbon l, a Icarbon I, h drox , - CH CONR'$R~$
6) y y y ~ g) y y ~ y y y ( 2)~_g o R~s ~N
or (~H2)o-4 0 wherein J is -O-, -NH-, -NR~$- or -CH2 ;

R3 and R4 are independently selected from the group consisting of 1-3 substituents independently selected from the group consisting of (C1-C6)alkyl, -OR14, -O CO R14, -O CO OR16, -O CH OR14, -O(CO NR14R15, -NR14R15, ) ~ ) ( 2)1-5 ) -NR14(CO)R15, -NR14(CO)OR16, -NR14(CO)NR15R19, -NR14S02R16, -COOR14, s -CONR R , -COR , -S02NR R , S(O)o_~R , -O(CH2)1_1o-COOR , -0(CH2)1 IoCONR14R15, -(C1-C6 alkylene)-COOR14, -CH=CH-COOR14, -CF3, -CN, -N02 and halogen;
R~ is hydrogen, (C1-C6)alkyl, aryl (C1-C6)alkyl, -C(O)R14 or -COOR14;
R9 and R17 are independently 1-3 groups independently selected from the io group consisting of hydrogen, (C1-C6)alkyl, (C1-C6)alkoxy, -COOH, NO~, -NR R , OH and halogeno;
R14 and R15 are independently selected from the group consisting of hydrogen, (C1-C6)alkyl, aryl and aryl-substituted (C1-C6)alkyl;
R16 IS (C1-C6)alkyl, aryl or R17-substituted aryl;
is R1$ is hydrogen or (C1-C6)alkyl; and R19 is hydrogen, hydroxy or (C1-G6)alkoxy.
Methods for making compounds of Formula IV are well known to those skilled in the art. Non-limiting examples of suitable methods are disclosed in U.S.
Patent No. 5,656,624, which is incorporated herein by reference.
2o In another embodiment, sterol absorption inhibitors useful in the compositions, therapeutic combinations and methods of the present invention are represented by Formula (V):
R
I
ArvX yC)q~Y S(O)r Arz m R1 n N
O ~Ar3 (V) zs or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein, in Formula (V) above:

Are is aryl, R'Q-substituted aryl or heteroaryl;
Ar2 is aryl or R4-substituted aryl;
Ar3 is aryl or R5-substituted aryl;
X and Y are independently selected from the group consisting of -CHI , s -CH(lower alkyl)- and -C(diiower alkyl)-;
R is -OR6, -O(CO)R6, -O(CO)OR9 or -O(CO)NR6R'; R~ is hydrogen, lower alkyl or aryl; or R and R1 together are =O;
qis0orl;
r is 0, 1 or 2;
to m and n are independently 0, 1, 2, 3, 4 or 5; provided that the sum of m, n and q is 1, 2, 3, 4 or 5;
R4 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH~)~_50R6, -O(CO)NR6R', -NR6R', -NR6(CO)R', -NR6(CO)OR9, -NR6(CO)NR'R8, -NR6SO2R9, -COOR6, is -CONR6R', -CORE, -SOZNR6R', S(O)o_2R9, -O(CH2)~_~o COOR6, -O(CH~)~_~oCONR6R', -(lower alkylene)COOR6 and -CH=CH-COOR6;
R5 is 1-5 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)~-5086, -O(CO)NR6R', -NR6R', -NR6(CO)R', -NR6(CO)OR9, -NR6(CO)NR'R8, -NR6S02R9, -COOR6, -CONR6R', -CORE, -2o S02NR6R', S(O)o_2R9, -O(CHz)1-1o-COOR6, -O(CH2)~-~oCONR6R', -CF3, -CN, -N02, halogen, -(lower alkylene)COOR6 and -CH=CH-COOR6;
R6, R' and R$ are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl;
2s R9 is lower alkyl, aryl or aryl-substituted lower alkyl; and R1o is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1_50R6, -O(CO)NR6R', -NR6R', -NR6(CO)R', -NR6(CO)OR9, -NR6(CO)NR'R6, -NR6S02R9, -COOR6, -CONR6R7, -CORE, -S02NR6R7, -S(O)o_~R9, -O(CH~)~-~o COOR6, -O(CH2)~_ ~oCONR6R7, -CF3, -CN, -NOZ and halogen.
Methods for making compounds of Formula V are well known to those skilled s in the art. Non-limiting examples of suitable methods are disclosed in U.S.
Patent No. 5,624,920, which is incorporated herein by reference.
In another embodiment, sterol absorption inhibitors useful in the compositions, therapeutic combinations and methods of the present invention are represented by Formula (VI):

~R1'-(R2)v oR2o A
(Rs)u N~
to O R~~ (Vl) or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein:
R1 is -CH-, -C(lower alkyl)-, -C;F-, -~(OH)-, -C(C6H5)-, -C(C6H4-R~5)-, i i - N- or ~N O ;
is R2 and R3 are independently selected from the group consisting of:
-CH2-, -CH(lower alkyl)-, -C(di-lower alkyl)-, -CH=CH- and -C(lower alkyl)=CH-; or R1 together with an adjacent R2, or R1 together with an adjacent R3, form a -CH=CH- or a -CH=C(lower alkyl)- group;
a and v are independently 0, 1, 2 or 3, provided both are not zero; provided 2o that when R2 is -CH=CH- or -C(lower alkyl)=CH-, v is 1; provided that when R3 is -CH=CH- or -C(lower alkyl)=CH-, a is 1; provided that when v is 2 or 3, the R2's can be the same or different; and provided that when a is 2 or 3, the R3's can be the same or different;
R4 is selected from B-(CH2)mC(O)-, wherein m is 0, 1, 2, 3, 4 or 5;

B-(CH~)q-, wherein q is 0, 1, 2, 3, 4, 5 or 6; B-(CH2)e-Z-(CH2)r-, wherein Z
is -O-, -C(O)-, phenylene, -N(Rg)- or -S(O)0_2-, a is 0, 1, 2, 3, 4 or 5 and r is 0, 1, 2, 3, 4 or 5, provided that the sum of a and r is 0, 1, 2, 3, 4, 5 or 6; B-(C2-Cg alkenylene)-; B-(C4-Cg alkadienylene)-; B-(CH2)t-Z-(C2-Cg alkenylene)-, wherein Z is as defined s above, and wherein t is 0, 1, 2 or 3, provided that the sum of t and the number of carbon atoms in the alkenylene chain is 2, 3, 4, 5 or 6; B-(CH2)f-V-(CH2)g-, wherein V is C3-Cg cycloaikylene, f is 1, 2, 3, 4 or 5 and g is 0, 1, 2, 3, 4 or 5, provided that the sum of f and g is 1, 2, 3, 4, 5 or 6; B-(CH2)t-V-(C~-C6 alkenylene)- or B-(C2-C6 alkenylene)-V-(CH2)t-, wherein V and t are as defined above, provided that the sum io of t and the number of carbon afioms in the alkenylene chain is 2, 3, 4, 5 or 6;
B-(CH~)a-Z-(CH2)b-V-(CH~)d-, wherein Z and V are as defined above and a, b and d are independently 0, 1, 2, 3, 4, 5 or 6, provided that the sum of a, b and d is 0, 1, 2, 3, 4, 5 or 6; or T-(CH~)s-, wherein T is cycloalkyl of 3-6 carbon atoms and s is 0, 1, 2, 3, 4, 5 or 6; or i is R1 and Rq. together form the group B-CH=C- ;
B is selected from indanyl, indenyl, naphthyl! tetrahydronaphthyl, heteroaryl or W-substituted heteroaryl, wherein heteroaryl is selected from the group consisting of pyrrolyl, pyridinyl, pyrimidinyl, pyrazinyl, triazinyl, imidazolyl, thiazolyl, pyrazolyl, thienyl, oxazolyl and furanyl, and for nitrogen-containing heteroaryls, the N-oxides 2o thereof, or //'~ R16 W is 1 to 3 substituents independently selected from the group consisting of lower alkyl, hydroxy lower alkyl, lower alkoxy, alkoxyalkyl, alkoxyalkoxy, aikoxycarbonylalkoxy, (lower alkoxyimino)-lower alkyl, lower alkanedioyl, lower alkyl 2s lower alkanedioyl, allyloxy, -CF3, -OCF3, benzyl, R7-benzyl, benzyloxy, R7-benzyloxy, phenoxy, R7-phenoxy, dioxolanyl, NO~, -N(Rg)(Rg), N(Rg)(Rg)-lower alkylene-, N(Rg)(Rg)-lower alkylenyloxy-, OH, halogeno, -CN, -Ng, -NHC(O)OR10, -NHC(O)R10, R1102SNH-a (R1102S)2N-s -S(0)ZNH2~ -S(O)0-2R8~ tert-butyldimethyl-silyloxymethyl, -C(O)R12, -COOR1 g, -CON(Rg)(Rg), -CH=CHC(O)R12, -lower alkylene-C(O)R12, R10C(O)(lower alkylenyloxy)-, N(Rg)(Rg)C(O)(lower alkylenyloxy)- and ~ for substitution on ring s carbon atoms, and the substituents on the substituted heteroaryl ring nitrogen atoms, when present, are selected from the group consisting of lower alkyl, lower alkoxy, -C(O)OR10, -C(O)R10, OH, N(Rg)(Rg)-lower alkylene-, N(Rg)(Rg)-lower alkylenyloxy-, -S(O)~NH2 and 2-(trimethylsilyl)-ethoxymethyl;
to R7 is 1-3 groups independently selected from the group consisting of lower alkyl, lower alkoxy, -COOH, N02, -N(Rg)(Rg), OH, and halogeno;
Rg and Rg are independently selected from H or lower alkyl;
R10 is selected from lower alkyl, phenyl, R7-phenyl, benzyl or R7-benzyl;
is R11 is selected from OH, lower alkyl, phenyl, benzyl, R7-phenyl or R7-benzyl;
R12 is selected from H, OH, alkoxy, phenoxy, benzyloxy, ~R13 -N(Rg)(Rg), lower alkyl, phenyl or R7-phenyl;
R13 is selected from -O-, -CHZ-, -NH-, -N(lower alkyl)- or -NC(O)R1 g;
R15~ R16 and R17 are independently selected from the group consisting of H
2o and the groups defined for W; or R15 is hydrogen and R16 and R17, together with adjacent carbon atoms to which they are attached, form a dioxolanyl ring;
R1 g is H, lower alkyl, phenyl or phenyl lower alkyl; and R20 and R21 are independently selected from the group consisting of phenyl, W-substituted phenyl, naphthyl, W-substituted naphthyl, indanyl, indenyl, 2s tetrahydronaphthyl, benzodioxolyl, heteroaryl, W-substituted heteroaryl, benzofused heteroaryl, W-substituted benzofused heteroaryl and cyclopropyl, wherein heteroaryl is as defined above.
Methods for making compounds of Formula VI are well known to those skilled in the art. Non-limiting examples of suitable methods are disclosed in U.S.
Patent s No. 5,698,548, which is incorporated herein by reference.
In another embodiment, sterol absorption inhibitors useful in the compositions, therapeutic combinations and methods of the present invention are represented by Formulas (VIIA) and (VIIB):
to (VIIA) and ' (VIIB) or a pharmaceutically acceptable salt or solvate thereof, is wherein:
A is -CH=CH-, -C=C- or -(CH2)p- wherein p is 0, 1 or 2;
B is R~
~~~.R2 W

B' is R~
~/,~ R2, R3, D is -(CHZ)mC(O)- or -(CH2)q- wherein m is 1, 2, 3 or 4 and q is 2, 3 or 4;
E is C10 to C~0 alkyl or -C(O)-(Cg fio C1 g)-alkyl, wherein the alkyl is straight or branched, saturated or containing one or more double bonds;
s R is hydrogen, C1-C15 alkyl, straight or branched, saturated or containing one or more double bonds, or B-(CH~)r -, wherein r is 0, 1, 2, or 3;
R1, R~, R3, R1', R~~, and R3' are independently selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, carboxy, N02, NH2, OH, halogeno, lower alkylamino, dilower alkylamino, -NHC(O)OR~, RgO~SNH- and -S(O)2NH2;
io Rq. is / (OR5)n wherein n is 0, 1, 2 or 3;
R5 is lower alkyl; and Rg is OH, lower alkyl, phenyl, benzyl or substituted phenyl wherein the is substituents are 1-3 groups independently selected from the group consisting of lower alkyl, lower alkoxy, carboxy, NO2, NH2, OH, halogeno, lower alkylamino and dilower alkylamino; or a pharmaceutically acceptable salt thereof or a solvate thereof.
In another embodiment, sterol absorption inhibitors useful in the compositions 2o and methods of the present invention are represented by Formula (VI II):

/y O-G
Are-R~-Q
O N~A~ (VIII) or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein, in Formula (VIII) above, R26 is H or OG~ ;
G and G~ are independently selected from the group consisting of OR4 ~5 OR4 ORS
O
~nIOR3 ~nIOR3 , -CH2 ~nIOR5 H, O C02R~ O CHZOR6 OR3 OR4 OR3a R4a~ yR
and OR3 O O~CH2Rb R40/i provided that when R26 is H or O~CH2Ra OH, G is not H;
R, Ra and Rb are independently selected from the group consisting of H, -OH, halogeno, -NHS, azido, (C~-Cg)alkoxy(C~-Cg)-alkoxy or-W-R30;
W is independently selected from the group consisting of -NH-C(O)-, -O-C(O)-, -O-C(O)-N(R3~ )-, -NH-C(O)-N(R3~ )- and -O-C(S)-N(R3~ )-;
R2 and R6 are independently selected from the group consisting of H, (C~-Cg)alkyl, aryl and aryl(C~-Cg)alkyl;
to R3, R4, R5, R~, R3a and R4a are independently selected from the group consisting of H, (C~-Cg)alkyl, aryl(C~-Cg)alkyl, -C(O)(C~-Cg)alkyl and -C(O)aryi;
R30 is selected from the group consisting of R3~-substituted T, R32-substituted-T-(C~-C6)alkyl, R32-substituted-(C2-Gq.)alkenyl, is R3~-substituted-(C~-C6)alkyl, R32-substituted-(C3-G7)cycloalkyl and R32-substituted-(C3-C7)cycloalky!(C~-Cg)alkyl;
R3~ is selected from the group consisting of H and (C~-Cq.)alkyl;
T is selected from the group consisting of phenyl, furyl, thienyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, iosthiazolyl, benzothiazolyl, thiadiazolyl, pyrazolyl, 2o imidazolyl and pyridyl;

R32 is independently selected from 1-3 substituents independently selected from the group consisting of halogeno, (C1-C4)alkyl, -OH, phenoxy, -CF3, -N02, (C1-C4)alkoxy, methylenedioxy, oxo, (C1-C4)alkylsulfanyl, (C1-C4)alkylsulfinyl, (C1-C4)alkylsulfonyl, -N(CH3)2, -C(O)-NH(C1-C4)alkyl, s -C(O)-N((C1-C4)alkyl)2, -C(O)-(C1-C4)alkyl, -C(O)-(C1-C4)alkoxy and pyrrolidinylcarbonyl; or R32 is a covalent bond and R31, the nitrogen to which it is attached and R3~ form a pyrrolidinyl, piperidinyl, N-methyl-piperazinyl, indolinyl or morpholinyl group, or a (C1-C4)alkoxycarbonyl-substituted pyrrolidinyl, piperidinyl, N-methylpiperazinyl, indolinyl or morpholinyl group;
io Ar1 is aryl or R10-substituted aryl;
Ar2 is aryl or R11-substituted aryl;
Q is a bond or, with the 3-position ring carbon of the azetidinone, ~R12-(R13) a forms the spiro group (R14)~~ ; and R1 is selected from the group consisting of is -(CH2)q-, wherein q is 2-6, provided that when Q forms a spiro ring, q can also be zero or 1;
-(CH2)e-E-(CH~)r-, wherein E is -O-, -C(O)-, phenylene, -NR2~- or -S(O)0_~-, a is 0-5 and r is 0-5, provided that the sum of a and r is 1-6;
-(C2-Cg)alkenylene-; and 20 -(CH~)f-V-(CH2)g-, wherein V is C3-Cg cycloalkylene, t is 1-5 and g is 0-5, provided that the sum of f and g is 1-6;
R1 ~ is -CH-, -C(C1-C6 alkyl)-, -CF-, -C(OH)-, -C(C6H4-R23)-, -N-, or -~NO- ;
I
R13 and R14 are independently selected from the group consisting of 2s -CHI-, -CH(C1-Cg alkyl)-, -C(di-(C1-Cg) alkyl), -CH=CH- and -C(C1-Cg alkyl)=CH-; or 812 together with an adjacent 813, or 812 together with an adjacent 814, form a -CH=CH- or a -CH=C(C1-Cg alkyl)- group;
a and b are independently 0, 1, 2 or 3, provided both are not zero;
provided that when 813 is -CH=CH- or-C(C1-C6 alkyl)=CH-, a is 1;
s provided that when 814 is -CH=CH- or -C(C1-Cg alkyl)=CH-, b is 1;
provided that when a is 2 or 3, the R13's can be the same or different; and provided that when b is 2 or 3, the R14's can be the same or different;
and when Q is a bond, R1 also can be:

I r i -M-Yd-~-zri ~ -Xm-(C)s-Yn (C)t-Zp- or -Xy(C)~-Yk S(O)o-2-to M is -O-, -S-, -S(O)- or -S(O)2-;
X, Y and Z are independently selected from the group consisting of -CH2-, -CH(C1-C6)alkyl- and -C(di-(C1-C6)alkyl);
810 and 811 are independently selected from the group consisting of 1-3 substituents independently selected from the group consisting of is (C1-C6)alkyl, -OR19, -O(CO)R19, -O(CO)OR21, -O(CH2)1-50819, -O(CO)NR19R20, _NR19R20, _NR19(CO)R20, -NR1~(CO)OR21, -NR19(CO)NR20R25~ _NR19S02R21 ~ _COOR19, -CONR19R20, _COR19, -S02NR19R20~ S(O)0-2R21~ -O(CH2)1-10-COOR19, -O(CH2)1_IpCONR19R20, -(C1-C6 alkylene)-COOR19, -CH=CH-COOR19, 20 -CF3, -CN, -N02 and halogen;
815 and 817 are independently selected from the group consisting of -OR1 ~, -O(CO)R19, -O(CO)OR21 and -O(CO)NR19R20;
816 and R1$ are independently selected from the group consisting of H, (C1-C6)alkyl and aryl; or 815 and 816 together are =O, or 817 and R1$ together 2s are =O;
dis1,2or3;

h is 0, 1, 2, 3 or 4;
s is 0 or 1; t is 0 or 1; m, n and p are independently 0-4;
provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6;
provided that when p is 0 and t is 1, the sum of m, s and n is 1-5; and s provided that when p is 0 and s is 1, the sum of m, t and n is 1-5;
vis0or1;
j and k are independently 1-5, provided that the sum of j, k and v is 1-5;

i -X~-(C)~-Y~ S(O)o_2-' i and when Q is a bond and R1 is R16 , Ar1 can also be pyridyl, isoxazolyl, furanyl, pyrrolyl, thienyl, imidazolyl, pyrazolyl, thiazolyl, pyrazinyl, to pyrimidinyl or pyridazinyl;
R19 and R~0 are independently selected from the group consisting of H, (C1-C6)alkyl, aryl and aryl-substituted (C1-Cg)alkyl;
R~1 is (C1-Cg)alkyl, aryl or R~4-substituted aryl;
R22 is H, (C1-Cg)alkyl, aryl (C1-C6)alkyl, -C(O)R19 or -COOR19;
is R23 and R24 are independently 1-3 groups independently selected from the group consisting of H, (C1-Cg)alkyl, (C1-Cg)alkoxy, -COOH, NO~, -NR19R~0, -OH and halogeno; and R25 is H, -OH or (C1-C6)alkoxy.
Methods for making compounds of Formula VIII are well known to those 2o skilled in the art. Non-limiting examples of suitable methods are disclosed in U.S.
Patent No. 5,756,470, which is incorporated herein by reference.
In another embodiment, sterol absorption inhibitors useful in the compositions and methods of the present invention are represented by Formula (IX) below:

ORS ,R26 Are L
Is R
(IX) or a pharmaceutically acceptable salt or solvate thereof, wherein in Formula (IX):
R~ is selected from the group consisting of H, G, G~, G2, -S03H and -P03H;
G is selected from the group consisting of: H, O

O O
C(O)OR2 , CH20R6 , R30 OR4 O ORs 2Rb -.H2C

and (sugar derivatives) wherein R, Ra and Rb are each independently selected from the group consisting of H, -OH, halo, -NH2, azido, (C1-C6)alkoxy(C1-Cg)alkoxy or -W-R30;
W is independently selected from the group consisting of io -NH-C(O)-, -O-C(O)-, -O-C(O)-N(R31 )-, -NH-C(O)-N(R31 )- and -O-C(S)-N(R31 )_;
R2 and R6 are each independently selected from the group consisting of H, (C1-Cg)alkyl, acetyl, aryl and aryl(C1-Cg)alkyl;

R3, R4, R5, R7, R3a and R4a are each independently selected from the group consisting of H, (C1-Cg)alkyl, acetyl, aryl(C1-C6)alkyl, -C(O)(C1-Cg)alkyl and -C(O)aryl;
R3~ is independently selected from the group consisting of R3~-substituted T, R3~-substituted-T-(C1-Cg)alkyl, R32-substituted-(C2-Cq.)alkenyl, R32-substituted-(C1-Cg)alkyl, R32-substituted-(C3-C7)cycloalkyl and R32_ substituted-(C3-C7)cycloalkyl(C1-Cg)alkyl;
R31 is independently selected from the group consisting of H and (C1-Cq.)alkyl;
~o T is independently selected from the group consisting of phenyl, furyl, thienyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyi, benzothiazolyl, thiadiazolyl, pyrazolyl, imidazolyl and pyridyl;
R3~ is independently selected from 1-3 substituents which are each independently selected from the group consisting of H, halo, (C1-Cq.)alkyl, -OH, is phenoxy, -CF3, -N02, (C1-Cq.)alkoxy, methylenedioxy, oxo, (C1-Cq.)alkylsulfanyl, (C1-Cq.)alkylsulfinyl, (C1-Cq.)alkylsulfonyl, -N(CH3)2, -C(O)-NH(C1-Cq.)alkyl, -C(O)-N((C1-Cq.)alkyl)2, -C(O)-(C1-Cq.)alkyl, -C(O)-(C1-Cq.)alkoxy and pyrrolidinylcarbonyl;
or R3~ is a covalent bond and R31, the nitrogen to which it is attached and R32 form a pyrrolidinyl, piperidinyl, N-methyl-piperazinyl, indolinyl or morpholinyl group, or a 20 (C1-Cq.)alkoxycarbonyl-substituted pyrrolidinyl, piperidinyl, N-methylpiperazinyl, indolinyl or morpholinyl group;
HO O
~C ~ C R33-CH
H~ H
or H2N
G~ is represented by the structure:
wherein R33 is independently selected from the group consisting of unsubstituted alkyl, R34-substituted alkyl, (R35)(Rss)alkyl-, CHZ
CHZ ~CHZ~ ~ ctl -z N ~ H ~ ~ ~ N~NH
H
R34 is one to three substituents, each R34 being independently selected from the group consisting of HOOC-, HO-, HS-, (CH3)S-, H2N-, (NH2)(NH)C(NH)-, s (NH2)C(O)- and HOOCCH(NH2+)CH~SS-;
R35 is independently selected from the group consisting of H and NH2-;
R36 is independently selected from the group consisting of H, unsubstituted alkyl, R34-substituted alkyl, unsubstituted cycloalkyl and R34-substituted cycloalkyl;
G~ is represented by the structure:

CH R3$
to wherein R3' and R3$ are each independently selected from the group consisting of (C~-C6)alkyl and aryl;
R26 is one to five substituents, each R~6 being independently selected from is the group consisting of:
a) H;

b) -OH;

c) -OCH3;

d) fluorine;

2o e) chlorine;

f) -O-G;

g) -O-G~;

h) -O-G2;

i) -S03H; and 2s j) -P03H;

provided that whe n R~ is H, R26 is not H, -OH, -OCH3 or-O-G;

Ark is aryl, R~ ~-substituted aryl, heteroaryl or R~ ~-substituted heteroaryl;
Ar2 is aryl, R~ ~-substituted aryl, heteroaryl or R~ ~-substituted heteroaryl;

L is selected from the group consisting of:
a) a covalent bond;
b) -(CH~)q-, wherein q is 1-6;
c) -(CH2)e-E-(CH2)r , wherein E is -O-, -C(O)-, phenylene, -NR~~- or s -S(O)°_z-, a is 0-5 and r is 0-5, provided that the sum of a and r is 1-6;
d) -(C2-C6)alkenylene-;
e) -(CH2)~-V-(CH2)g-, wherein V is C3-C6cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6; and f) to R15 ~17 115 115 -M-Yd- ~ -Zh- ~~ ~ )s Yn~)s ZP ~~ ~ )v Yk'-S~~)0-2 11s ~ R1s Ris ar R1s wherein M is -O-, -S-, -S(O)- or -S(O)2-;
X, Y and Z are each independently selected from the group consisting of -CH2-, -CH(C~-C6)alkyl- and -C(di-(C~-C6)alkyl)-;
R$ is selected from the group consisting of H and alkyl;
is R10 and R11 are each independently selected from the group consisting of 1-3 substituents which are each independently selected from the group consisting of (C1-C6)alkyl, -OR19, -O(CO)R19, -O(CO)OR21, -O(CH2)1-50R19~
O(CO)NR19R20, _NR19R20, _NR19(CO)R20, -NRIg(CO)OR21, -NR19(CO)NR20R25, _NR19S02R21 ~ _COOR19, -CONR19R20~ _COR19, _ 2o S02NR19R20, S(O)0_2821, _O(CH2)1_10-COOR19, -O(CH2)1-10CONR19R20, _ (C1-C6 alkylene)-COOR19, -CH=CH-COOR19, -CF3, -CN, -N02 and halo;
R'5 and R~' are each independently selected from the group consisting of -OR~9, -OC(O)R~9, -OC(O)OR2~, - OC(O)NR~9R2°;
R~6 and R'$are each independently selected from the group consisting of H, 2s (C~-C6)alkyl and aryl;
or R~5 and R~6 together are =O, or R~'and R'$ together are =O;
d is 1, 2 or 3;
his0,1,2,3or4;

sis0or1;
tis0or1;
m, n and p are each independently selected from 0-4;
provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6;
s provided that when p is 0 and t is 1, the sum of m, n and p is 1-5; and provided that when p is -0 and s is 1, the sum of m, t and n is 1-5;
vis0or1;
j and k are each independently 1-5, provided that the sum of j, k and v is 1-5;
Q is a bond, -(CH2)q-, wherein q is 1-6, or, with the 3-position ring carbon of io the azetidinone, forms the spiro group ~R12-(R13) [ a (R14)IJ ;
wherein R12 is -CH-, -C(C1-C6 alkyl)-, -CF-, -C(OH)-, -C(C6H4-R23)-, -N-, or -+NO- ;
I
is R13 and R14 are each independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)-, -C(di-(C1-Cg) alkyl), -CH=CH- and -C(C1-Cg alkyl)=CH-;
or R12 together with an adjacent R13, or R12 together with an adjacent R14, form a -CH=CH- or a -CH=C(C1-Cg alkyl)- group;
a and b are each independently 0, 1, 2 or 3, provided both are not zero;
2o provided that when R13 is -CH=CH- or -C(C1-C6 alkyl)=CH-, a is 1; provided that when R14 is -CH=CH- or -C(C1-Cg alkyl)=CH-, b is 1; provided that when a is 2 or 3, the R13's can be the same or different; and provided that when b is 2 or 3, the R14's can be the same or different;
2s and when Q is a bond and L is x~"i~)~-~'k-sio)o-z-then Are can also be pyridyl, isoxazolyl, furanyl, pyrrolyl, thienyl, imidazolyl, pyrazolyl, thiazolyl, pyrazinyl, pyrimidinyl or pyridazinyl;
R19 and R20 are each independently selected from the group consisting of H, (C1-Cg)alkyl, aryl and aryl-substituted (C1-Cg)alkyl;
R21 is (C1-Cg)alkyl, aryl or R24-substituted aryl;
R22 is H, (C1-Cg)alkyl, aryl (C1-Cg)alkyl, -C(O)R19 or -COOR19;
R23 and R24 are each independenfily selected from the group consisting of 1-~0 3 substituents which are each independently selected from the group consisting of H, (C1-Cg)alkyl, (C1-C6)alkoxy, -COOH, NO2, -NR19R20, -OH and halo; and R2~ is H, -OH or (C1-Cg)alkoxy.
Examples of compounds of Formula (IX) which are useful in the methods and combinations of the present invention and methods for making such compounds are is disclosed in U.S. Patent Application Serial No. 10/166,942, filed June 11, 2002, incorporated herein by reference.
An example of a useful compound of this invention is one represented by the formula X:
ORS i OH
F ( ~ O'r N i 2o F
X
wherein R~ is defined as above.
A more preferred compound is one represented by formula XI:

O
HO, OH
O
HO
O , OH
Ho I
F I i O~N i wl F
(XI).
Another useful compound is represented by Formula XII:
O O
OH HO OH
HO
O
HO OH
HO O ~ I O OH
F I ~ O~N
~I
F XII
Other useful substituted azetidinone compounds include N-sulfonyl-2-azetidinones such as are disclosed in U.S, Patent No. 4,983,597, ethyl 4-(2-oxoazetidin-4-yl)phenoxy-alkanoates such as are disclosed in Ram et al., Indian J.
Chem. Sect. B. 29B, 12 (1990), p. 1134-7, and diphenyl azetidinones and derivatives disclosed in U.S. Patent Publication Nos. 2002/0039774, 2002/0128252, 2002/0128253 and 2002/0137689, and WO 2002/066464, each of which is to incorporated by reference herein.
The compounds of Formulae I-XII can be prepared by known methods, including the methods discussed above and, for example, WO 93/02048 describes the preparation of compounds wherein -R1-Q- is alkylene, alkenylene or alkylene interrupted by a hetero atom, phenylene or cycfoalkylene; WO 94117038 describes is the preparation of compounds wherein Q is a spirocyclic group; WO 95/08532 describes the preparation of compounds wherein -R1-Q- is a hydroxy-substituted alkylene group; PCT/US95/03196 describes compounds wherein -R1-Q- is a hydroxy-substituted alkylene attached to the Ar1 moiety through an -O- or S(O)0-2-group; and U.S. Serial No. 08/463,619, filed June 5, 1995, describes the preparation of compounds wherein -R1-Q- is a hydroxy-substituted alkylene group attached the azetidinone ring by a -S(O)p-~- group.
Compounds of the invention have at least one asymmetrical carbon atom and therefore all isomers, including enantiomers, stereoisomers, rofiamers, tautomers and racemates of the compounds of Formulae I-XII are contemplated as being part of this invention. The invention includes d and I isomers in both pure form and in admixture, including racemic mixtures. Isomers can be prepared using conventional techniques, either by reacting optically pure or optically enriched starting materials or io by separating isomers of a compound of the Formulae I-XII. Isomers may also include geometric isomers, e.g., when a double bond is present.
Those skilled in the art will appreciate that for some of the compounds of the Formulas I-XII, one isomer will show greater pharmacological activity than other isomers.
~s Compounds of the invention with an amino group can form pharmaceutically acceptable salts with organic and inorganic acids. Examples of suitable acids for salt formation are hydrochloric, sulfuric, phosphoric, acetic, citric, oxalic, malonic, salicylic, malic, fumaric, succinic, ascorbic, malefic, methanesulfonic and other mineral and carboxylic acids well known to those in the art. The salt is prepared by 2o contacting the free base form with a sufficient amount of the desired acid to produce a salt. The free base form may be regenerated by treating the salt with a suitable dilute aqueous base solution such as dilute aqueous sodium bicarbonate. The free base form differs from its respective salt form somewhat in certain physical properties, such as solubility in polar solvents, but the salt is otherwise equivalent to 2s its respective free base forms for purposes of the invention.
Certain compounds of the invention are acidic (e.g., those compounds which possess a carboxyl group). These compounds form pharmaceutically acceptable salts with inorganic and organic bases. Examples of such salts are the sodium, potassium, calcium, aluminum, gold and silver salts. Also included are salts formed 3o with pharmaceutically acceptable amines such as ammonia, alkyl amines, hydroxyalkylamines, N-methylglucamine and the like.

As used herein, "solvate" means a molecular or ionic complex of molecules or ions of solvent with those of solute (for example, one or more compounds of Formulae I-XII, isomers of the compounds of Formulae I-XII, or prodrugs of the compounds of Formulae !-XII). Non-limiting examples of useful solvents include polar, protic solvents such as water and/or alcohols (for example methanol).
Prodrugs of the compounds of Formulae I-XII are contemplated as being part of this invention. As used herein, "prodrug" means compounds that are drug precursors which, following administration to a patient, release the drug in vivo via some chemical or physiological process (e.g., a prodrug on being brought to the io physiological pH or through enzyme action is converted to the desired drug form).
The daily dose of the sterol absorption inhibitors) administered to the subject can range from about 0.1 to about 1000 mg per day, preferably about 0.25 to about 50 mg/day, and more preferably about 10 mg per day, given in a single dose or divided doses. The exact dose, however, is determined by the attending clinician Is and is dependent on the potency of the compound administered, the age, weight, condition and response of the patient.
For administration of pharmaceutically acceptable salts of the above compounds, the weights indicated above refer to the weight of the acid equivalent or the base equivalent of the therapeutic compound derived from the salt.
2o The term "therapeutically effective amount" means that amount of a therapeutic agent of the composition, such as a sterol absorption inhibitor(s), or other agent useful for the treatment of an autoimmune disorder and other pharmacological or therapeutic agents described below, that will elicit a biological or medical response of a tissue, system, or subject that is being sought by the administrator zs (such as a researcher, doctor or veterinarian) which includes alleviation of the symptoms of the condition or disease being treated and the prevention, slowing or halting of progression of the condition (autoimmune disorder and its symptom(s)).
For example, a widely accepted composite index of improvement in rheumatoid arthritis (RA) is the ACR20 score proposed by the American College of 3o Rheumatology (ACR). ACR20 refers to a composite improvement of 20% in swollen joint count, tender joint count, and 3 or more of the following measures:
patient's own global assessment of RA disease activity; physician's assessment of disease activity; patient's own assessment of pain due to RA; acute-phase reactant (ESR, CRP); and disability (Health Assessment Questionnaire). See "Guidelines for the Management of Rheumatoid Arfihritis, 2002 Update", Arthritis and Rheumatism 46(2):
328-346 (2002). The percentage of patients showing improvement in ACR20 score s is the generally accepted minimum criteria for a(I new therapeutics for the treatment of RA.
Examples of suitable subjects that can be treated according to the methods of the present invention include mammals, such as humans or dogs, and other animals.
As used herein, "combination therapy" or "therapeutic combination" means the to administration of two or more therapeutic agents, such as sterol absorption inhibitors) and other agents useful for the treatment of an autoimmune disorder, to prevent or treat an autoimmune disorder or any of its associated conditions.
Such administration includes coadministration of these therapeutic agents in a substantially simultaneous manner, such as in a single tablet or capsule having a is fixed ratio of active ingredients or in multiple, separate capsules for each therapeutic agent. Also, such administration includes use of each type of therapeutic agent in a sequential manner. In either case, the treatment using the combination therapy will provide beneficial effects in treating the autoimmune condition. A potential advantage of the combination therapy disclosed herein may be a reduction in the 2o required amount of an individual therapeutic compound or the overall total amount of therapeutic compounds that are effective in treating the autoimmune condition.
By using a combination of therapeutic agents, the side effects of the individual compounds can be reduced as compared to a monotherapy, which can improve patient compliance. Also, therapeutic agents can be selected to provide a broader 2s range of complimentary effects or complimentary modes of action.
In another embodiment, the present invention provides a therapeutic combination comprising (a) a first amount of at least one sterol absorption inhibitor or a pharmaceutically acceptable salt thereof or a solvate thereof; and (b) a second amount of at least one other agent or treatment useful for the treatment of an 3o autoimmune disorder, wherein the first amount and the second amount together comprise a therapeutically effective amount for the treatment or prevention of an autoimmune disorder or lessening or amelioration of one or more symptoms of a condition associated with the autoimmune disorder.
In another embodiment, the present invention. provides a pharmaceutical composition for the treatment or prevention of an autoimmune disorder and/or lowering a concentration of a sterol in plasma of a subject, comprising a therapeutically effective amount of a composition comprising (a) a first amount of at least one sterol absorption inhibitor or a pharmaceutically acceptable salt thereof or a solvate thereof; (b) a second amount of at least one other agent useful for the treatment of an autoimmune disorder and (c) a pharmaceutically acceptable carrier.
to In another embodiment, the present invention provides a method of treating or preventing an autoimmune disorder in a subject, comprising the step of administering to a subject in need of such treatment an effective amount of a composition comprising (a) a first amount of at least one sterol absorption inhibitor or a pharmaceutically acceptable salt thereof or a solvate thereof; and (b) a second Is amount of at least one other agent useful for the treatment of an autoimmune disorder to prevent or treat an autoimmune disorder or any of its symptoms in the subject.
Useful agents for treating autoimmune disorders include: (a) disease modifying antirheumatic drugs, including methotrexate, gold salts, D-penicillamine, 2o hydroxychloroquine, auranofin, sulfsalazine; (b) nonsteroidal anitinflammatory drugs, including indomethacin, naproxen, diclofenac, ibuprofen, aspirin and aspirin analogs, acetaminophen; (c) COX-2 selective inhibitors, including celecoxib, rofecoxib, etoricoxib, valdecoxib, lumiracoxib; (d) COX-1 inhibitors; (e) immunosuppressives, including calcineurin inhibitors such as cyclosporin and FK506; p70s6 kinase 2s inhibitors such as sirolimus and rapamycin; inosine monophosphate dehydrogenase inhibitors such as mycophenolate; leflunomide, cyclophosphamide, azathioprine;
(f) steroids, including prednisone, betamethasone, budesonide and dexamethasone; (g) biological response modifiers, including TNFa antagonists such as infliximab, adalimmab and etanercept; IL-1 receptor antagonists such as 3o anakinra; humanized or chimeric antibodies or fusion proteins such as alefacept, efalizumab, daclizumab; anti-chemokine antibodies or interleukins; and (h)other agents useful for the treatment of autoimmune disorders, including chemokine receptor antagonists or modulators, cannabinoid receptor antagonists or modulators, inhibitors of matrix metalloproteinases, TNFa-converting enzymes, nitric oxide synthetases or phosphodiesterase IV, such as roflumilast or cilomilast;
inhibitors of p38 MAP-kinase, the NF-kappa pathway or IL-1 receptor associated kinase or s inhibitors of interactions involving adhesion molecules such as LFA-1, VLA-4, ICAM-1, VCAM-1, a4~3~, MAdCAM-1, and a"~33. The amount of the respective agent for treating an autoimmune disorder, which is to administered to the subject can be readily determined by one skilled in the art.
Also useful with the present invention are compositions or therapeutic to combinations that can further comprise one or more pharmacological or therapeutic agents or drugs such as cholesterol biosynthesis inhibitors and/or lipid-lowering agents discussed below.
Non-limiting examples of cholesterol biosynthesis inhibitors for use in the compositions, therapeutic combinations and methods of the present invention us include competitive inhibitors of HMG CoA reductase, the rate-limiting step in cholesterol biosynthesis, squalene synthase inhibitors, squalene epoxidase inhibitors and mixtures thereof. Non-limiting examples of suitable HMG CoA reductase inhibitors include statins such as atorvastatin (for example LIPITOR~ which is available from Pfizer), lovastatin (for example MEVACOR~ which is available from 2o Merck & Co.), pravastatin (for example PRAVACHOL~ which is available from Bristol Meyers Squibb), fluvastatin, simvastatin (for example ZOCOR~ which is available from Merck & Co.), cerivastatin, CI-981, rivastatin (sodium 7-(4-fluorophenyl)-2,6-diisopropyl-5-methoxymethylpyridin-3-yl)-3,5-dihydroxy-6-heptanoate) and pitavastatin (such as NK-104 of Negma Kowa of Japan).
Preferred 2s HMG CoA reductase inhibitors include atorvastatin and simvastatin.
Generally, a total daily dosage of cholesterol biosynthesis inhibitors) can range from about 0.1 to about 160 mg per day, and preferably about 0.2 to about 80 mg/day in single or divided doses.
Also useful with the present invention are compositions or therapeutic 3o combinations that can further comprise at least one (one or more) activators for peroxisome proliferator-activated receptors (PPAR), such as peroxisome proliferator-activated receptor alpha (PPARa), peroxisome proliferator-activated receptor gamma (PPARy) and peroxisome proliferator-activated receptor delta (PPARcS). PPARa activator compounds are useful for, among other things, lowering triglycerides, moderately lowering LDL levels and increasing HDL levels. Useful examples of PPARa activators include fibrates, such as clofibrate, gemfibrozil and fenofibrate.
The PPAR activators) are administered in a therapeutically effective amount to treat the specified condition, for example in a daily dose preferably ranging from about 50 to about 3000 mg per day.
The compositions, therapeutic combinations or methods of the present to invention can further comprise one or more bile acid sequestrants such as cholestyramine, colestipol and colesevelam hydrochloride. Generally, a total daily dosage of bile acid sequestrant(s) can range from about 1 to about 50 grams per day, and preferably about 2 to about 16 grams per day in single or 2-4 divided doses.
is The compositions or treatments of the present invention can further comprise one or more ileal bile acid transport ("IBAT") inhibitors (or apical sodium co-dependent bile acid transport ("ASBT") inhibitors) coadministered with or in combination with the peroxisome proliferator-activated receptor activators) and sterol absorption inhibitors) discussed above. The IBAT inhibitors can inhibit bile 2o acid transport to reduce LDL cholesterol levels. Non-limiting examples of suitable IBAT inhibitors include benzothiepines such as are disclosed in PCT Patent Application WO 00/38727. Generally, a total daily dosage of IBAT inhibitors) can range from about 0.01 to about 1000 mg/day, and preferably about 0.1 to about mg/day in single or 2-4 divided doses.
2s The compositions or treatments of the present invention can further comprise nicotinic acid (niacin) and/or derivatives thereof, such as NIASPAN~ (niacin extended-release tablets) which are available from Kos. Generally, a total daily dosage of nicotinic acid or a derivative thereof can range from about 500 to about 10,000 mg/day, preferably about 1000 to about 8000 mg/day, and more preferably 3o about 3000 to about 6000 mg/day in single or divided doses.
The compositions or treatments of the present invention can further comprise one or more AcyICoA:Cholesterol O-acyltransferase ("ACAT") Inhibitors, which can reduce LDL and VLDL levels. Non-limiting examples of useful ACAT inhibitors include avasimibe. Generally, a total daily dosage of ACAT inhibitors) can range from about 0.1 to about 1000 mg/day in single or 2-4 divided doses.
The compositions or treatments of the present invention can further comprise one or more Cholesteryl Ester Transfer Protein ("CETP") Inhibitors. CETP is responsible for the exchange or transfer of cholesteryl ester carrying HDL and triglycerides in VLDL. Non-limiting examples of suitable CETP inhibitors are disclosed in PCT Patent Application No. WO 00/38721 and U.S. Patent No.
6,147,090, which are incorporated herein by reference. Generally, a total daily Zo dosage of CETP inhibitors) can range from about 0.01 to about 1000 mg/day, and preferably about 0.5 to about 20 mg/Icg body weight/day in single or divided doses.
The compositions or treatments of the present invention can further comprise probucol or derivatives thereof, which can reduce LDL levels. Generally, a total daily dosage of probucol or derivatives thereof can range from about 10 to about ~s mg/day, and preferably about 500 to about 1500 mg/day in single or 2-4 divided doses.
The compositions or treatments of the present invention can further comprise low-density lipoprotein (LDL) receptor activators such as HOE-402, an imidazolidinyl-pyrimidine derivative that directly stimulates LDL receptor activity.
Generally, a total 2o daily dosage of LDL receptor activators) can range from about 1 to about mg/day in single or 2-4 divided doses.
The compositions or treatments of the present invention can further comprise fish oil, which contains Omega 3 fatty acids (3-PUFA), which can reduce VLDL
and triglyceride levels. Generally, a total daily dosage of fish oil or Omega 3 fatty acids 2s can range from about 1 to about 30 grams per day in single or 2-4 divided doses.
The compositions or treatments of the present invention can further comprise natural water soluble fibers, such as psyllium, guar, oat and pectin, which can reduce cholesterol levels. Generally, a total daily dosage of natural water soluble fibers can range from about 0.1 to about 10 grams per day in single or 2-4 divided doses.
3o The compositions or treatments of the present invention can further comprise plant sterols, plant stanols and/or fatty acid esters of plant stanols, such as sitostanol ester used in BENECOL~ margarine, which can reduce cholesterol levels.

=41 -Generally, a total daily dosage of plant sterols, plant stanols and/or fatty acid esters of plant stanols can range from about 0.5 fio about 20 grams per day in single or 2-4 divided doses.
The compositions or treatments of the present invention can furfiher comprise antioxidants, such as probucol, tocopherol, ascorbic acid, ~i-carotene and selenium, or vitamins such as vitamin B6 or vitamin B~2. Generally, a total daily dosage of antioxidants or vitamins can range from about 0.05 to about 10 grams per day in single or 2-4 divided doses.
The compositions or treatments of the present invention can further comprise to monocyte and macrophage inhibitors such as polyunsaturated fatty acids, gene therapy and use of recombinant proteins such as recombinant apo E. Generally, a total daily dosage of these agents can range from about 0.01 to about 1000 mg/day in single or 2-4 divided doses.
The compositions, therapeutic combinations or methods of the present is invention can further comprise one or more cardiovascular agents or blood modifiers.
Mixtures of any of the pharmacological or therapeutic agents described above can be used in the compositions and therapeutic combinations of these other embodiments of the present invention.
The compositions and therapeutic combinations of the present invention can 2o be administered to a subject in need of such treatment in a therapeutically effective amount to treat an autoimmune disorder and its associated conditions as discussed above. The compositions and treatments can be administered by any suitable means which produce contact of these compounds with the site of action in the body, for example in the plasma, liver or small intestine of a subject.
2s The daily dosage for the various compositions and therapeutic combinations described above can be administered to a subject in a single dose or in multiple subdoses, as desired. Subdoses can be administered 2 to 6 times per day, for example. Sustained release dosages can be used. Where the sterol absorption inhibitors) and the other agent useful for the treatment of an autoimmune disorder 3o are administered in separate dosages, the number of doses of each component given per day may not necessarily be the same, e.g., one component may have a greater duration of activity and will therefore need to be administered less frequently.

The compositions, therapeutic combinations or medicaments of the present invention can further comprise one or more pharmaceutically acceptable carriers, one or more excipients and/or one or more additives.. The pharmaceutical compositions can comprise about 1 to about 99 weight percent of active ingredient (such as one or more compounds of Formula I-Xli), and preferably about 5 to about 95 percent active ingredient.
Useful pharmaceutically acceptable carriers can be either solid, liquid or gas.
Non-limiting examples of pharmaceutically acceptable carriers include solids and/or liquids such as magnesium carbonate, magnesium stearate, talc, sugar, lactose, ~o ethanol, glycerol, water and the like. The amount of carrier in the treatment composition or therapeutic combination can range from about 5 to about 99 weight percent of the total weight of the treatment composition or therapeutic combination.
Non-limiting examples of suitable pharmaceutically acceptable excipients and additives include non-toxic compatible fillers, binders such as starch, polyvinyl is pyrrolidone or cellulose ethers, disintegrants such as sodium starch glycolate,.
crosslinked polyvinyl pyrrolidone or croscarmellose sodium, buffers, preservatives, anti-oxidants, lubricants, flavorings, thickeners, coloring agents, wetting agents such as sodium lauryl sulfate, emulsifiers and the like. The amount of excipient or additive can range from about 0.1 to about 95 weight percent of the total weight of the 2o treatment composition or therapeutic combination. One skilled in the art would understand that the amount of carrier(s), excipients and additives (if present) can vary. Further examples of pharmaceutically acceptable carriers and methods of manufacture for various compositions can be found in A. Gennaro (ed.), Remington:
The Science and Practice of Pharmacy, 20t" Edition, (2000), Lippincott Williams &
2s Wilkins, Baltimore, MD.
Useful solid form preparations include powders, tablets, dispersible granules, capsules, cachets and suppositories. An example of a preparation of a preferred solid form dosage formulation is provided below.
Useful liquid form preparations include solutions, suspensions and emulsions.
3o As an example may be mentioned water or water-propylene glycol solutions for parenteral injection or addition of sweeteners and opacifiers for oral solutions, suspensions and emulsions. Liquid form preparations may also include solutions for intranasal administration.
Aerosol preparations suitable for inhalation may include solutions and solids in powder form, which may be in combination with a pharmaceutically acceptable s carrier, such as an inert compressed gas, e.g. nitrogen.
Also useful are solid form preparations which are intended to be converted, shortly before use, to liquid form preparations for either oral or parenteral administration. Such liquid forms include solutions, suspensions and emulsions.
The compounds of the invention may also be deliverable transdermally. The io transdermal compositions can take the form of creams, lotions, aerosols and/or emulsions and can be included in a transdermal patch of the matrix or reservoir type as are conventional in the art for this purpose.
Preferably the compound is administered orally.
In another embodiment, the present invention provides the use of at least one is compound represented by Formulae (I-XII) for manufacture of a medicament (such as one of the compositions discussed above) for the treatment of an autoimmune disorder and its associated conditions.
The following formulation exemplifies one of the dosage forms of this invention. In the formulation, the term "Active Compound I" designafies a sterol 2o absorption inhibitor such as any of the compounds of Formulas I-XII
described herein above and the term "Active Compound I I" designates at least one other agent useful for the treatment of an autoimmune disorder (such as an immunosuppressive medicament) described herein above.
2s EXAMPLE FORMULATION
Tablets No. Ingredient m~g/tablet 1 Active Compound I 10 2 Lactose monohydrate NF 55 3 Microcrystalline cellulose NF 20 4 Povidone USP (K29-32) 4 Croscarmellose sodium NF 8 6 Sodium lauryl sulfate NF 2 7 Magnesium stearate NF 1 Total 100 In the present invention, the above-described tablet can be coadministered with an injection, tablet, capsule, etc. comprising a dosage of Active Compound I I as described above.
s Method of Manufacture Mix Item No. 4 with purified water in suitable mixer to form binder solution.
Spray the binder solution and then water over Items 1, 2 and 6 and a portion of item 5 in a fluidized bed processor to granulate the ingredients: Continue fluidization to io dry the damp granules. Screen the dried granule and blend with Item No. 3 and the remainder of Item No. 5. Add Item No. 7 and mix. Compress the mixture to appropriate size and weight on a suitable tablet machine.
For coadminisfiration in separate tablets or capsules, representative formulations comprising a sterol absorption inhibitor, such as are discussed above, is are well known in the art and representative formulations comprising at least one other agent useful for the treatment of an autoimmune disorder, such as are discussed above, are well known in the art. It is contemplated that where the two active ingredients are administered as a single composition, the dosage forms disclosed above for sterol absorption inhibitors may readily be modified using the 2o knowledge of one skilled in the art.
Since the present invention relates to treating an autoimmune disorder by treatment with a combination of active ingredients wherein the active ingredients may be administered separately, the invention also relates to combining separate pharmaceutical compositions in kit form. That is, a kit is contemplated wherein two 2s separate units are combined: a pharmaceutical composition comprising at least one anti-autoimmune disorder medication and a separate pharmaceutical composition comprising at least one sterol absorption inhibitor as described above. The kit will preferably include directions for the administration of the separate components. The kit form is particularly advantageous when the separate components must be administered in different dosage forms (e.g., oral and parenteral) or are administered at different dosage intervals.
s The treatment compositions and therapeutic combinations of the present invention can irihibit the intestinal absorption of sterols in subjects and can be useful in the treatment and/or prevention of an autoimmune disorder and associated conditions, such as rheumatoid arthritis, in subjects, in particular in mammals.
The compositions and therapeutic combinations of the present invention can to reduce plasma concentration of at least one sterol selected from the group consisting of cholesterol and phytosterols (such as sitosterol, campesterol, stigmasterol and avenosterol) and mixtures thereof. The plasma concentration can be reduced by administering to a subject in need of such treatment an effective amount of at least one treatment composition comprising at least one sterol ~s absorption inhibitor described above. The reduction in plasma concentration of sterols or can range from about 1 to about 70 percent, and preferably about 10 to about 50 percent. Methods of measuring serum total blood cholesterol and total LDL
cholesterol are well known to those skilled in the art and for example include those disclosed in PCT WO 99/38498 at page 11, incorporated by reference herein.
2o Methods of determining levels of other sterols in serum are disclosed in H.
Gylling et al., "Serum Sterols During Stanol Ester Feeding in a Mildly Hypercholesterolemic Population", J. Lipid Res. 40: 593-600 (1999), incorporated by reference herein.
Illustrating the invention are the following examples which, however, are not to 2s be considered as limiting the invention to their details. Unless otherwise indicated, all parts and percentages in the following examples, as well as throughout the specification, are by weight.
EXAMPLES
EXAMPLE 1 - PREPARATION OF COMPOUND OF FORMULA (II) Step 1 ): To a solution of (S)-4-phenyl-2-oxazolidinone (41 g, 0.25 mol) in CH2C12 (200 ml), was added 4-dimethylaminopyridine (2.5 g, 0.02 mol) and triethylamine (84.7 ml, 0.61 mol) and the reaction mixture was cooled to OoC.
Methyl-4-(chloroformyl)butyrate (50 g, 0.3 mol) was added as a solution in s (375 ml) dropwise over 1 h, and the reaction was allowed to warm to 22oC.
After 17 h, water and H2S04 (2N, 100 ml), was added the layers were separated, and the organic layer was washed sequentially with NaOH (10%), NaCI (sat'd) and water.
The organic layer was dried over MgS04 and concentrated to obtain a semicrystalline product.
to Step 2): To a solution of TiCl4 (18.2 ml, 0.165 mol) in CH2CI2 (600 ml) at OoC, was added titanium isopropoxide (16.5 ml, 0.055 mol). After 15 min, the product of Step 1 (49.0 g, 0.17 mol) was added as a solution in CH2CI2 (100 ml).
After 5 min., diisopropylethylamine (DIPEA) (65.2 ml, 0.37 mol) was added and the reaction mixture was stirred at OoC for 1 h, the reaction mixture was cooled to -20oC, is and 4-benzyloxybenzylidine(4-fluoro)aniline (114.3 g, 0.37 mol) was added as a solid. The reaction mixture was stirred vigorously for 4 h at -20oC, then acetic 'acid was added as a solution in CH2CI2 dropwise over 15 min, the reaction mixture was allowed to warm to OoC, and H2S04 (2N) was added. The reaction mixture was stirred an additional 1 h, the layers were separated, washed with water, separated 2o and the organic layer was dried. The crude product was crystallized from ethanol/water to obtain the pure intermediate.
Step 3): To a solution of the product of Step 2 (8.9 g, 14.9 mmol) in toluene (100 ml) at 50oC, was added N,O-bis(trimethylsilyl)acetamide (BSA) (7.50 ml, 30.3 mmol). After 0.5 h, solid TBAF (0.39 g, 1.5 mmol) was added and the reaction 2s mixture stirred at 50oC for an additional 3 h. The reaction mixture was cooled to 22oC, CH30H (10 ml), was added. The reaction mixture was washed with HCl (1 N), NaHC03 (1 N) and NaCI (sat'd.), and the organic layer was dried over MgS04.
Step 4): To a solution of the product of Step 3 (0.94 g, 2.2 mmol) in CH30H
(3 ml), was added water (1 ml) and LiOH~H20 (102 mg, 2.4 mmole). The reaction mixture was stirred at 22oC for 1 h and then additional LiOH~H20 (54 mg, 1.3 mmole) was added. After a total of 2 h, HCI (1 N) and EtOAc was added, the layers were separated, the organic layer was dried and concentrated in vacuo. To a solution of the resultant product (0.91 g, 2.2 mmol) in CH2CI2 at 22oC, was added s CICOCOCI (0.29 ml, 3.3 mmol) and the mixture stirred for 16 h. The solvent was removed in vacuo.
Step 5): To an efficiently stirred suspension of 4-fluorophenylzinc chloride (4.4 mmol) prepared from 4-fluorophenylmagnesium bromide (1 M in THF, 4.4 ml, 4.4 mmol) and ZnCl2 (0.6 g, 4.4 mmol) at 4oC, was added tetrakis(triphenyl-to phosphine)palladium (0.25 g, 0.21 mmol) followed by the product of Step 4 (0.94 g, 2.2 mmol) as a solution in THF (2 ml). The reaction was stirred for 1 h at OoC
and then for 0.5 h at 22oC. HC) (1 N, 5 ml) was added and the mixture was extracted with EtOAc. The organic layer was concentrated to an oil and purified by silica gel chromatography to obtain 1-(4-fluorophenyl)-4(S)-(4-hydroxyphenyl)-3(R)-(3-oxo-~s phenylpropyl)-2-azetidinone:
HRMS calc'd for C24H1 gF2N03 = 408.1429, found 408.1411.
Step 6): To the product of Step 5 (0.95 g, 1.91 mmol) in THF (3 ml), was added (R)-tetrahydro-1-methyl-3,3-diphenyl-1H,3H-pyrrolo-[1,2-c][1,3,2]
oxazaborole (120 mg, 0.43 mmol) and the mixture was cooled to -20oC. After 5 min, 2o borohydride-dimethylsulfide complex (2M in THF, 0.85 ml, 1.7 mmol) was added dropwise over 0.5 h. After a total of 1.5 h , CH30H was added followed by HCI
(1 N) and the reaction mixture was extracted with EtOAc to obtain 1-(4-fluorophenyl)-3(R)-[3(S)-(4-fluorophenyl)-3-hydroxypropyl)]-4(S)-[4-(phenylmethoxy)phenyl]-2-azetidinone (compound 6A-1 ) as an oil. 1 H in CDCI3 d H3 = 4.68. J = 2.3 Hz.
CI
2s (M+H) 500.
Use of (S)-tetra-hydro-1-methyl-3,3-diphenyl-1H,3H-pyrrolo-[1,2-c][1,3,2]
oxazaboroie gives the corresponding 3(R)-hydroxypropyl azetidinone (compound 6B-1 ). 1 H in CDCl3 d H3 = 4.69. J = 2.3 Hz. CI (M+H) 500.
To a solution of compound 6A-1 (0.4 g, 0.8 mmol) in ethanol (2 ml), was 3o added 10% Pd/C (0.03 g) and the reaction mixture was stirred under a pressure (60 psi) of H2 gas for 16 h. The reaction mixture was filtered and the solvent was concentrated to obtain compound 6A. Mp 164-166oC; CI (M+H) 410.
[cc]p = -28.1 ° (c 3, CH30H) . Elemental analysis calc'd for C24H21 F2N03: C
70.41; H 5.17; N 3.42; found C 70.25; H 5.19; N 3.54.
s Similarly treat compound 6B-1 to obtain compound 6B.
Mp 129.5-132.5oC; CI (M+H) 410. Elemental analysis calc'd for C24H21 F2N03:
C 70.41; H 5.17; N 3.42; found C 70.30; H 5.14; N 3.52.
Step 6' (Alternative): To a solution of the product of Step 5 (0.14 g, 0.3 mmol) in ethanol (2 ml), was added 10% Pd/C (0.03 g) and the reaction was stirred under a to pressure (60 psi) of H2 gas for 16 h. The reaction mixture was filtered and the solvent was concentrated to afford a 1:1 mixture of compounds 6A and 6B.

COMPOUND OF FORMULA II TO TREAT EXPERIMENTAL ARTHRITIS
The compound of Formula ll (or any cholesterol absorption inhibitor discussed above) is administered to rodents which have been induced to develop experimental arthritis. Useful rodents can include Balb/c, C57BL/6, B10.RI11 or DBA/1 mice, or Lewis or Wistar rats (available from Jackson Laboratory, Charles River Laboratories or Taconic Laboratories).
In the present example, collagen-induced arthritis (CIA) in DBA/1 or B10.RI11 mice (from the Jackson Laboratory) are used as an animal model of rheumatoid arthritis for in vivo evaluation of the effect of the compound of Formula II
on rheumatoid disease. Typically, the highly susceptible parental strain DBA/1 or 2s B10.R111 develop 90-100% arthritis in males and 60-100% arthritis in females. The disease is induced by immunization with cartilage-specific type II collagen in Complete Freund's adjuvant and in some cases animals are boosted with Type II
collagen or lipopolysaccharide on days 17-25 after immunization. The mice are weeks old at the time of immunization. Rat type II collagen is prepared as previously 3o described (see Miller and Rhodes (1982) Methods Enzymol. 82: 33). CIA is induced by intradermal immunization in the base of the tail with 50-100 pg type II
collagen emulsified in Complete Freund's adjuvant (as described in Current Protocols in Immunology, Unit 15, John Wiley & Sons, Inc. NY or in Holmdahl, et al. (1998) Genetic Analysis of Murine Models for Rheumatoid Arthritis In Human Genome Methods, vol. 215, CRC Press, NY).
s The compound of Formula II (or any cholesterol absorption inhibitor discussed above) is administered to mice that have been induced to developed CIA.
Typically, mice can be scored for clinical disease starting at 14 days after immunization with rat type II collagen. The compound of Formula II is administered at a dosage of 0.1-100 mg/kg/day either in the diet or by systemic oral, subcutaneous or intraperitoneal io administration over a period of 3 days to 10 weeks. Animals are scored daily for clinical disease score as described in Current Protocols in Immunology, Unit 15, John Wiley & Sons, Inc., NY. At a specified period of time after compound administration, animals are euthanized by isofurane overdose and cytological, histological, immunological and immunohistochemical parameters are assessed by is standard techniques well known to those skilled in the art. Serum lipoprotein and cholesterol measurements wil! be made by methods well known to those skilled in the'art and, for example, including those disclosed in PCT WO 99/38498 at page 11, incorporated by reference herein.
2o EXAMPLE 3 - HYPOTHETICAL IN VIVD EVALUATION OF THE ABILITY OF THE
COMPOUND OF FORMULA II TO TREAT ULCERATIVE COLITIS
The compound of Formula II (or any cholesterol absorption inhibitor discussed above) is administered to rodents which have been induced to develop ulcerative 2s colitis. Suitable rodents are the same as those described in Example 2.
In the present example, the effect of the administration of the compound of Formula II is investigated in 2,4,6-trinitrobenzene sulfonic acid (TNBS) -induced colitis in mice. The compound of Formula Il is administered at a dosage of 0.1-mg/kg/day either in the diet or by systemic oral, subcutaneous or intraperitoneal 3o administration over a period of 3 days to 10 weeks. Colitis is induced in mice by intrarectal administration of TNBS (1.5 mg/mouse in 50% ethanol) and disease severity is assessed clinically and by histologic scoring of colon damage, including determination of interleukin (IL)-2, IL-12, interferon (INF)-gamma and tumor necrosis factor (TNF)-alpha (protein and mRNA) and myeloperoxidase (MPO) activity in the colon. Cytokine production by the lamina propia mononuclear cells (LPMC) and s luminal bacteria are also typically measured (see Fiorucci, et al. (2002) Digestion 66(4): 246-256). In particular, after a specified period of time after Compound II
administration, animals are euthanized by isofurane overdose and the above-described parameters are assessed using methods described in Current Protocols in Immunology, Unit 15, John Wiley & Sons, Inc. NY and/or using the methods to described by Fiorucci, et al. (2002) in Digestion 66(4): 246-256. Serum lipoprotein and cholesterol measurements will be made as described in Example 2.
It will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive is concept thereof. It is understood, therefore, that this invention is not limited to the particular embodiments disclosed, but it is intended to cover modifications that are within the spirit and scope of the invention, as defined by the appended claims.

Claims (19)

Claims:
1. A method of treating or preventing an autoimmune disorder in a subject, comprising the step of administering to a subject in need of such treatment an effective amount of at least one sterol absorption inhibitor or a pharmaceutically acceptable salt or solvate thereof, wherein the at least one sterol absorption inhibitor is selected from the group of compounds represented by:
(a) Formula (I):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein:
Ar1 and Ar2 are independently selected from the group consisting of aryl and R4 -substituted aryl;
Ar3 is aryl or R5-substituted aryl;
X, Y and Z are independently selected from the group consisting of -CH2-, -CH(lower alkyl)- and -C(dilower alkyl)-;
R and R2 are independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9 and -O(CO)NR6R7;
R1 and R3 are independently selected from the group consisting of hydrogen, lower alkyl and aryl;
q is 0 or 1;
r is 0 or 1;

m, n and p are independently selected from 0, 1, 2, 3 or 4; provided that at least one of q and r is 1, and the sum of m, n, p, q and r is 1, 2, 3, 4, 5 or 6; and provided that when p is 0 and r is 1, the sum of m, q and n is 1, 2, 3, 4 or 5;
R4 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -(lower alkylene)COOR6, -CH=CH-COOR6, -CF3, -CN, -NO2 and halogen;
R5 is 1-5 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -(lower alkylene)COOR6 and -CH=CH-COOR6;
R6, R7 and R8 are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl; and R9 is lower alkyl, aryl or aryl-substituted lower alkyl;
(b) Formula (III):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (III) above:

Ar1 is R3-substituted aryl;
Ar2 is R4-substituted aryl;

Ar3 is R5-substituted aryl;
Y and Z are independently selected from the group consisting of -CH2-, -CH(lower alkyl)- and -C(dilower alkyl)-;
A is selected from -O-, -S-, -S(O)- or -S(O)2-;
R1 is selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9 and -O(CO)NR6R7; R2 is selected from the group consisting of hydrogen, lower alkyl and aryl; or R1 and R2 together are =O;
q is 1, 2 or 3;
p is 0, 1, 2, 3 or 4;
R5 is 1-3 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR9, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2 lower alkyl, -NR6SO2 aryl, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2 alkyl, S(O)0-2-aryl, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, o-halogeno, m-halogeno, o-lower alkyl, m-lower alkyl, -(lower alkylene)-COOR6, and -CH=CH-COOR6;
R3 and R4 are independently 1-3 substituents independently selected from the group consisting of R5, hydrogen, p-lower alkyl, aryl, -NO2, -CF3 and p-halogeno;
R6, R7 and R8 are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl; and R9 is lower alkyl, aryl or aryl-substituted lower alkyl;
(c) Formula (IV):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (IV) above:
A is selected from the group consisting of R2-substituted heterocycloalkyl, R2-substituted heteroaryl, R2-substituted benzofused heterocycloalkyl, and R2-substituted benzofused heteroaryl;
Ar1 is aryl or R3-substituted aryl;
Ar2 is aryl or R4-substituted aryl;
Q is a bond or, with the 3-position ring carbon of the azetidinone, forms the spiro group and R1 is selected from the group consisting of:
-(CH2)q-, wherein q is 2-6, provided that when Q forms a spiro ring, q can also be zero or 1;
-(CH2)e-G-(CH2)r, wherein G is -O-, -C(O)-, phenylene, -NR8- or -S(O)0-2-, e is 0-5 and r is 0-5, provided that the sum of e and r is 1-6;
-(C2-C6 alkenylene)-; and -(CH2)f-V-(CH2)g-, wherein V is C3-C6 cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6;
R5 is selected from:

R6 and R7 are independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)-, -C(di-(C1-C6) alkyl), -CH=CH- and -C(C1-C6 alkyl)=CH-; or R5 together with an adjacent R6, or R5 together with an adjacent R7, form a -CH=CH- or a -CH=C(C1-C6 alkyl)- group;
a and b are independently 0, 1, 2 or 3, provided both are not zero; provided that when R6 is -CH=CH- or -C(C1-C6 alkyl)=CH-, a is 1; provided that when R7 is -CH=CH- or -C(C1-C6 alkyl)=CH-, b is 1; provided that when a is 2 or 3, the R6's can be the same or different; and provided that when b is 2 or 3, the R7's can be the same or different;
and when Q is a bond, R1 also can be selected from:

where M is -O-, -S-, -S(O)- or -S(O)2-;
X, Y and Z are independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)- and -C(di-(C1-C6) alkyl);
R10 and R12 are independently selected from the group consisting of -OR14, -O(CO)R14, -O(CO)OR16 and -O(CO)NR14R15;
R11 and R13 are independently selected from the group consisting of hydrogen, (C1-C6)alkyl and aryl; or R10 and R11 together are =O, or R12 and together are =O;
d is 1, 2 or 3;
h is 0, 1, 2, 3 or 4;
s is 0 or 1; t is 0 or 1; m, n and p are independently 0-4; provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6; provided that when p is 0 and t is 1, the sum of m, s and n is 1-5; and provided that when p is 0 and s is 1, the sum of m, t and n is 1-5;
v is 0 or 1;
j and k are independently 1-5, provided that the sum of j, k and v is 1-5;
R2 is 1-3 substituents on the ring carbon atoms selected from the group consisting of hydrogen, (C1-C10)alkyl, (C2-C10)alkenyl, (C2-C10)alkynyl, (C3-C6)cycloalkyl, (C3-C6)cycloalkenyl, R17-substituted aryl, R17-substituted benzyl, R17-substituted benzyloxy, R17-substituted aryloxy, halogeno, -NR14R15, NR14R15(C1-C6 alkylene)-, NR14R15C(O)(C1-C6 alkylene)-,-NHC(O)R16, OH, C1-C6 alkoxy, -OC(O)R16, -COR14, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy(C1-C6)alkyl, N02, -S(O)0-2R16, -SO2NR14R15 and -(C1-C6 alkylene)COOR14; when R2 is a substituent on a heterocycloalkyl ring, R2 is as defined, or is =O or and, where R2 is a substituent on a substitutable ring nitrogen, it is hydrogen, (C1-C6)alkyl, aryl, (C1-C6)alkoxy, aryloxy, (C1-C6)alkylcarbonyl, arylcarbonyl, hydroxy, -(CH2)1-6CONR18R18, wherein J is -O-, -NH-, -NR18- or -CH2-;
R3 and R4 are independently selected from the group consisting of 1-3 substituents independently selected from the group consisting of (C1-C6)alkyl, -OR14, -O(CO)R14, -O(CO)OR16, -O(CH2)1-5OR14, -O(CO)NR14R15, -NR14R15, -NR14(CO)R15, -NR14(CO)OR16, -NR14(CO)NR15R19, -NR14SO2R16, -COOR14, -CONR14R15, -COR14, -SO2NR14R15, S(O)0-2R16, -O(CH2)1-10-COOR14, -O(CH2)1-10CONR14R15, -(C1-C6 alkylene)-COOR14, -CH=CH-COOR14, -CF3, -CN, -NO2 and halogen;
R8 is hydrogen, (C1-C6)alkyl, aryl (C1-C6)alkyl, -C(O)R14 or -COOR14;
R9 and R17 are independently 1-3 groups independently selected from the group consisting of hydrogen, (C1-C6)alkyl, (C1-C6)alkoxy, -COOH, NO2, -NR14R15, OH and halogeno;
R14 and R15 are independently selected from the group consisting of hydrogen, (C1-C6)alkyl, aryl and aryl-substituted (C1-C6)alkyl;
R16 is (C1-C6)alkyl, aryl or R17-substituted aryl;
R18 is hydrogen or (C1-C6)alkyl; and R19 is hydrogen, hydroxy or (C1-C6)alkoxy;

(d) Formula (V):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (V) above:

Ar1 is aryl, R10-substituted aryl or heteroaryl;
Ar2 is aryl or R4-substituted aryl;
Ar3 is aryl or R5-substituted aryl;
X and Y are independently selected from the group consisting of -CH2-, -CH(lower alkyl)- and -C(dilower alkyl)-;
R is -OR6, -O(CO)R6, -O(CO)OR9 or -O(CO)NR6R7; R1 is hydrogen, lower alkyl or aryl; or R and R1 together are =O;
q is 0 or 1;
r is 0, 1 or 2;
m and n are independently 0, 1, 2, 3, 4 or 5; provided that the sum of m, n and q is 1, 2, 3, 4 or 5;
R4 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -(lower alkylene)COOR6 and -CH=CH-COOR6;
R5 is 1-5 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -CF3, -CN, -NO2, halogen, -(lower alkylene)COOR6 and -CH=CH-COOR6;
R6, R7 and R8 are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl;
R9 is lower alkyl, aryl or aryl-substituted lower alkyl; and R10 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, -S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -CF3, -CN, -NO2 and halogen;
(e) Formula (VI):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (VI) above:
R1 is R2 and R3 are independently selected from the group consisting of:
-CH2-, -CH(lower alkyl)-, -C(di-lower alkyl)-, -CH=CH- and -C(lower alkyl)=CH-; or R1 together with an adjacent R2, or R1 together with an adjacent R3, form a -CH=CH- or a -CH=C(lower alkyl)- group;
u and v are independently 0, 1, 2 or 3, provided both are not zero; provided that when R2 is -CH=CH- or -C(lower alkyl)=CH-, v is 1; provided that when R3 is -CH=CH- or -C(lower alkyl)=CH-, u is 1; provided that when v is 2 or 3, the R2's can be the same or different; and provided that when u is 2 or 3, the R3's can be the same or different;
R4 is selected from B-(CH2)m C(O)-, wherein m is 0, 1, 2, 3, 4 or 5;
B-(CH2)q-, wherein q is 0, 1, 2, 3, 4, 5 or 6;
B-(CH2)e-Z-(CH2)r, wherein Z is -O-, -C(O)-, phenylene, -N(R8)- or -S(O)0-2-, e is 0, 1, 2, 3, 4 or 5 and r is 0, 1, 2, 3, 4 or 5, provided that the sum of e and r is 0, 1, 2, 3, 4, 5 or 6;
B-(C2-C6 alkenylene)-;
B-(C4-C6 alkadienylene)-;
B-(CH2)t-Z-(C2-C6 alkenylene)-, wherein Z is as defined above, and wherein t is 0, 1, 2 or 3, provided that the sum of t and the number of carbon atoms in the alkenylene chain is 2, 3, 4, 5 or 6;
B-(CH2)f-V-(CH2)g-, wherein V is C3-C6 cycloalkylene, f is 1, 2, 3, 4 or 5 and g is 0, 1, 2, 3, 4 or 5, provided that the sum of f and g is 1, 2, 3, 4, 5 or 6;
B-(CH2)t-V-(C2-C6 alkenylene)- or B-(C2-C6 alkenylene)-V-(CH2)t-, wherein V and t are as defined above, provided that the sum of t and the number of carbon atoms in the alkenylene chain is 2, 3, 4, 5 or 6;
B-(CH2)a-Z-(CH2)b-V-(CH2)d-, wherein Z and V are as defined above and a, b and d are independently 0, 1, 2, 3, 4, 5 or 6, provided that the sum of a, b and d is 0, 1, 2, 3, 4, 5 or 6; or T-(CH2)s-, wherein T is cycloalkyl of 3-6 carbon atoms and s is 0, 1, 2, 3, 4, 5 or 6; or R1 and R4 together form the group B is selected from indanyl, indenyl, naphthyl, tetrahydronaphthyl, heteroaryl or W-substituted heteroaryl, wherein heteroaryl is selected from the group consisting of pyrrolyl, pyridinyl, pyrimidinyl, pyrazinyl, triazinyl, imidazolyl, thiazolyl, pyrazolyl, thienyl, oxazolyl and furanyl, and for nitrogen-containing heteroaryls, the N-oxides thereof, or W is 1 to 3 substituents independently selected from the group consisting of lower alkyl, hydroxy lower alkyl, lower alkoxy, alkoxyalkyl, alkoxyalkoxy, alkoxycarbonylalkoxy, (lower alkoxyimino)-lower alkyl, lower alkanedioyl, lower alkyl lower alkanedioyl, allyloxy, -CF3, -OCF3, benzyl, R7-benzyl, benzyloxy, R7-benzyloxy, phenoxy, R7-phenoxy, dioxolanyl, NO2,-N(R8)(R9), N(R8)(R9)-lower alkylene-, N(R8)(R9)-lower alkylenyloxy-, OH, halogeno, -CN, -N3, -NHC(O)OR10, -NHC(O)R10, R11O2SNH-, (R11O2S)2N-, -S(O)2NH2, -S(O)0-2R8, tert-butyldimethyl-silyloxymethyl, -C(O)R12, -COOR19, -CON(R8)(R9), CH=CHC(O)R12, -lower alkylene-C(O)R12, R10C(O)(lower alkylenyloxy)-, N(R8)(R9)C(O)(lower alkylenyloxy)- and for substitution on ring carbon atoms, and the substituents on the substituted heteroaryl ring nitrogen atoms, when present, are selected from the group consisting of lower alkyl, lower alkoxy, -C(O)OR10, -C(O)R10, OH, N(R8)(R9)-lower alkylene-,N(R8)(R9)-lower alkylenyloxy-, -S(O)2NH2 and 2-(trimethylsilyl)-ethoxymethyl;
R7 is 1-3 groups independently selected from the group consisting of lower alkyl, lower alkoxy, -COOH, NO2, -N(R8)(R9), OH, and halogeno;
R8 and R9 are independently selected from H or lower alkyl;
R10 is selected from lower alkyl, phenyl, R7-phenyl, benzyl or R7-benzyl;
R11 is selected from OH, lower alkyl, phenyl, benzyl, R7-phenyl or R7-benzyl;

R12 is selected from H, OH, alkoxy, phenoxy, benzyloxy, -N(R8)(R9), lower alkyl, phenyl or R7-phenyl;
R13 is selected from -O-, -CH2-, -NH-, -N(lower alkyl)- or -NC(O)R19;
R15, R16 and R17 are independently selected from the group consisting of H
and the groups defined for W; or R15 is hydrogen and R16 and R17, together with adjacent carbon atoms to which they are attached, form a dioxolanyl ring;
R19 is H, lower alkyl, phenyl or phenyl lower alkyl; and R20 and R21 are independently selected from the group consisting of phenyl, W-substituted phenyl, naphthyl, W-substituted naphthyl, indanyl, indenyl, tetrahydronaphthyl, benzodioxolyl, heteroaryl, W-substituted heteroaryl, benzofused heteroaryl, W-substituted benzofused heteroaryl and cyclopropyl, wherein heteroaryl is as defined above;

(f) Formula (VIIA) or (VIIB):

or a pharmaceutically acceptable salt or solvate thereof, wherein in Formula (VIIA) or (VIIB) above:
A is -CH=CH-, -C.ident.C- or -(CH2)p- wherein p is 0, 1 or 2;
B is B' is D is -(CH2)m C(O)- or -(CH2)q- wherein m is 1, 2, 3 or 4 and q is 2, 3 or 4;
E is C10 to C20 alkyl or -C(O)-(C9 to C19)-alkyl, wherein the alkyl is straight or branched, saturated or containing one or more double bonds;
R is hydrogen, C1-C15 alkyl, straight or branched, saturated or containing one or more double bonds, or B-(CH2)r-, wherein r is 0, 1, 2, or 3;
R1, R2, R3, R1', R2', and R3' are independently selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, carboxy, NO2, NH2, OH, halogeno, lower alkylamino, dilower alkylamino, -NHC(O)OR5, R6O2SNH- and -S(O)2NH2;
R4 is wherein n is 0, 1, 2 or 3;
R5 is lower alkyl; and R6 is OH, lower alkyl, phenyl, benzyl or substituted phenyl wherein the substituents are 1-3 groups independently selected from the group consisting of lower alkyl, tower alkoxy, carboxy, NO2, NH2, OH, halogeno, lower alkylamino and dilower alkylamino;
or a pharmaceutically acceptable salt thereof or a prodrug thereof;

(g) Formula (VIII):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (VIII) above, R26 is H or OG1;
G and G1 are independently selected from the group consisting of H,~ provided that when R26 is H or OH, G is not H;
R, R a and R b are independently selected from the group consisting of H, -OH, halogeno, -NH2, azido, (C1-C6)alkoxy(C1-C6)-alkoxy or -W-R30;
W is independently selected from the group consisting of -NH-C(O)-, -O-C(O)--O-C(O)-N(R31)-, -NH-C(O)-N(R31)- and -O-C(S)-N(R31)-;
R2 and R6 are independently selected from the group consisting of H, (C1-C6)alkyl, aryl and aryl(C1-C6)alkyl;
R3, R4, R5, R7, R3a and R4a are independently selected from the group consisting of H, (C1-C6)alkyl, aryl(C1-C6)alkyl, -C(O)(C1-C6)alkyl and -C(O)aryl;
R30 is selected from the group consisting of R32-substituted T

R32-substituted-T-(C1-C6)alkyl, R32-substituted-(C2-C4)alkenyl, R32-substituted-(C1-C6)alkyl, R32-substituted-(C3-C7)cycloalkyl and R32-substituted-(C3-C7)cycloalkyl(C1-C6)alkyl;
R31 is selected from the group consisting of H and (C1-C4)alkyl;
T is selected from the group consisting of phenyl, furyl, thienyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, iosthiazolyl, benzothiazolyl, thiadiazolyl, pyrazolyl, imidazolyl and pyridyl;
R32 is independently selected from 1-3 substituents independently selected from the group consisting of halogeno, (C1-C4)alkyl, -OH, phenoxy, -CF3, -NO2, (C1-C4)alkoxy, methylenedioxy, oxo, (C1-C4)alkylsulfanyl, (C1-C4)alkylsulfinyl, (C1-C4)alkylsulfonyl, -N(CH3)2, -C(O)-NH(C1-C4)alkyl, -C(O)-N((C1-C4)alkyl)2, -C(O)-(C1-C4)alkyl, -C(O)-(C1-C4)alkoxy and pyrrolidinylcarbonyl; or R32 is a covalent bond and R31, the nitrogen to which it is attached and R32 form a pyrrolidinyl, piperidinyl, N-methyl-piperazinyl, indolinyl or morpholinyl group, or a (C1-C4)alkoxycarbonyl-substituted pyrrolidinyl, piperidinyl, N-methylpiperazinyl, indolinyl or morpholinyl group;
Ar1 is aryl or R10-substituted aryl;
Ar2 is aryl or R11-substituted aryl;
Q is a bond or, with the 3-position ring carbon of the azetidinone, forms the spiro group and R1 is selected from the group consisting of -(CH2)q-, wherein q is 2-6, provided that when Q forms a spiro ring, q can also be zero or 1;
-(CH2)e-E-(CH2)r-, wherein E is -O-, -C(O)-, phenylene, -NR22- or -S(O)0-2-, e is 0-5 and r is 0-5, provided that the sum of e and r is 1-6;
-(C2-C6)alkenylene-; and -(CH2)f-V-(CH2)g-, wherein V is C3-C6 cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6;
R12 is R13 and R14 are independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)-, -C(di-(C1-C6) alkyl), -CH=CH- and -C(C1-C6 alkyl)=CH-; or R12 together with an adjacent R13, or R12 together with an adjacent R14, form a -CH=CH- or a -CH=C(C1-C6 alkyl)- group;
a and b are independently 0, 1, 2 or 3, provided both are not zero;
provided that when R13 is -CH=CH- or -C(C1-C6 alkyl)=CH-, a is 1;
provided that when R14 is -CH=CH- or -C(C1-C6 alkyl)=CH-, b is 1;
provided that when a is 2 or 3, the R13's can be the same or different; and provided that when b is 2 or 3, the R14's can be the same or different;
and when Q is a bond, R1 also can be:

M is -O-, -S-, -S(O)- or -S(O)2-;
X, Y and Z are independently selected from the group consisting of -CH2-, -CH(C1-C6)alkyl- and -C(di-(C1-C6)alkyl);
R10 and R11 are independently selected from the group consisting of 1-3 substituents independently selected from the group consisting of (C1-C6)alkyl, -OR19, -O(CO)R19, -O(CO)OR21, -O(CH2)1-5OR19, -O(CO)NR19R20, -NR19R20, -NR19(CO)R20, -NR19(CO)OR21, -NR19(CO)NR20R25 -NR19SO2R21, -COOR19, -CONR19R20, -COR19, -SO2NR19R20, S(O)0-2R21, -O(CH2)1-10-COOR19, -O(CH2)1-10CONR19R20, -(C1-C6 alkylene)-COOR19, -CH=CH-COOR19, -CF3, -CN, -NO2 and halogen;

R15 and R17 are independently selected from the group consisting of -OR19, -O(CO)R19, -O(CO)OR21 and -O(CO)NR19R20;
R16 and R18 are independently selected from the group consisting of H, (C1-C6)alkyl and aryl; or R15 and R16 together are =O, or R17 and R18 together are =O;
d is 1, 2 or 3;
h is 0, 1, 2, 3 or 4;
s is 0 or 1; t is 0 or 1; m, n and p are independently 0-4;
provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6;
provided that when p is 0 and t is 1, the sum of m, s and n is 1-5; and provided that when p is 0 and s is 1, the sum of m, t and n is 1-5;
v is 0 or 1;
j and k are independently 1-5, provided that the sum of j, k and v is 1-5;

and when Q is a bond and R1 is Ar1 can also be pyridyl, isoxazolyl, furanyl, pyrrolyl, thienyl, imidazolyl, pyrazolyl, thiazolyl, pyrazinyl, pyrimidinyl or pyridazinyl;
R19 and R20 are independently selected from the group consisting of H, (C1-C6)alkyl, aryl and aryl-substituted (C1-C6)alkyl;
R21 is (C1-C6)alkyl, aryl or R24-substituted aryl;
R22 is H, (C1-C6)alkyl, aryl (C1-C6)alkyl, -C(O)R19 or -COOR19;
R23 and R24 are independently 1-3 groups independently selected from the group consisting of H, (C1-C6)alkyl, (C1-C6)alkoxy, -COOH, NO2, -NR19R20, -OH and halogeno; and R25 is H, -OH or (C1-C6)alkoxy; and (h) Formula (IX):

or a pharmaceutically acceptable salt or solvate thereof, wherein in Formula (IX):
R1 is selected from the group consisting of H, G, G1, G2, -SO3H and -PO3H;
G is selected from the group consisting of: H, wherein R, R a and R b are each independently selected from the group consisting of H, -OH, halo, -NH2, azido, (C1-C6)alkoxy(C1-C6)alkoxy or-W-R30;
W is independently selected from the group consisting of -NH-C(O)-, -O-C(O)-, -O-C(O)-N(R31)-, -NH-C(O)-N(R31)- and -O-C(S)-N(R31)-;

R2 and R6 are each independently selected from the group consisting of H, (C1-C6)alkyl, acetyl, aryl and aryl(C1-C6)alkyl;
R3, R4, R5, R7, R3a and R4a are each independently selected from the group consisting of H, (C1-C6)alkyl, acetyl, aryl(C1-C6)alkyl, -C(O)(C1-C6)alkyl and -C(O)aryl;
R30 is independently selected from the group consisting of R32-substituted T, R32-substituted-T-(C1-C6)alkyl, R32-substituted-(C2-C4)alkenyl, R32-substituted-(C1-C6)alkyl, R32-substituted-(C3-C7)cycloalkyl and R32-substituted-(C3-C7)cycloalkyl(C1-C6)alkyl;
R31 is independently selected from the group consisting of H and (C1-C4)alkyl;
T is independently selected from the group consisting of phenyl, furyl, thienyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, benzothiazolyl, thiadiazolyl, pyrazolyl, imidazolyl and pyridyl;
R32 is independently selected from 1-3 substituents which are each independently selected from the group consisting of H, halo, (C1-C4)alkyl, -OH, phenoxy, -CF3, -NO2, (C1-C4)alkoxy, methylenedioxy, oxo, (C1-C4)alkylsulfanyl, (C1-C4)alkylsulfinyl, (C1-C4)alkylsulfonyl, -N(CH3)2, -C(O)-NH(C1-C4)alkyl, -C(O)-N((C1-C4)alkyl)2, -C(O)-(C1-C4)alkyl, -C(O)-(C1-C4)alkoxy and pyrrolidinylcarbonyl;
or R32 is a covalent bond and R31, the nitrogen to which it is attached and R32 form a pyrrolidinyl, piperidinyl, N-methyl-piperazinyl, indolinyl or morpholinyl group, or a (C1-C4)alkoxycarbonyl-substituted pyrrolidinyl, piperidinyl, N-methylpiperazinyl, indolinyl or morpholinyl group;

G1 is represented by the structure:

wherein R33 is independently selected from the group consisting of unsubstituted alkyl, R34-substituted alkyl, (R35)(R36)alkyl-, R34 is one to three substituents, each R34 being independently selected from the group consisting of HOOC-, HO-, HS-, (CH3)S-, H2N-, (NH2)(NH)C(NH)-, (NH2)C(O)- and HOOCCH(NH2+)CH2SS-;
R35 is independently selected from the group consisting of H and NH2-;
R36 is independently selected from the group consisting of H, unsubstituted alkyl, R34-substituted alkyl, unsubstituted cycloalkyl and R34-substituted cycloalkyl;

G2 is represented by the structure:

wherein R37 and R38 are each independently selected from the group consisting of (C1-C6)alkyl and aryl;
R26 is one to five substituents, each R26 being independently selected from the group consisting of:

a) H;
b) -OH;
c) -OCH3;

d) fluorine;
e) chlorine;
f) -O-G;
g) -O-G1;
h) -O-G2;
i) -SO3H; and j) -PO3H;

provided that when R1 is H, R26 is not H, -OH, -OCH3 or -O-G;
Ar1 is aryl, R10-substituted aryl, heteroaryl or R10-substituted heteroaryl;
Ar2 is aryl, R11-substituted aryl, heteroaryl or R11-substituted heteroaryl;
L is selected from the group consisting of:
a) a covalent bond;
b) -(CH2)q-, wherein q is 1-6;
c) -(CH2)e E-(CH2)r-, wherein E is -O-, -C(O)-, phenylene, -NR22- or -S(O)0-2-, e is 0-5 and r is 0-5, provided that the sum of e and r is 1-6;
d) -(C2-C6)alkenylene-;
e) -(CH2)f-V-(CH2)9-, wherein V is C3-C6cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6; and f) wherein M is -O-, -S-, -S(O)- or -S(O)2-;
X, Y and Z are each independently selected from the group consisting of -CH2-, -CH(C1-C6)alkyl- and -C(di-(C1-C6)alkyl)-;

R8 is selected from the group consisting of H and alkyl;

R10 and 811 are each independently selected from the group consisting of 1-3 substituents which are each independently selected from the group consisting of (C1-C6)alkyl, -OR19, -O(CO)R19, -O(CO)OR21, -O(CH2)1-5OR19, -O(CO)NR19R20, -NR19R20, -NR19(CO)R20, -NR19(CO)OR21, -NR19(CO)NR20R25, -NR19SO2R21, -COOR19, -CONR19R20, -COR19, -SO2NR19R20, S(O)0-2R21, -O(CH2)1-10-COOR19, -O(CH2)1-10CONR19R20, -(C1-C6 alkylene)-COOR19, -CH=CH-COOR19, -CF3, -CN, -NO2 and halo;

R15 and R17 are each independently selected from the group consisting of -OR19, -OC(O)R19, -OC(O)OR20, - OC(O)NR19R20;

R16 and R18 are each independently selected from the group consisting of H, (C1-C6)alkyl and aryl;

or R15 and R16 together are =O, or R17 and R18 together are =O;
d is 1,2 or 3;
h is 0, 1, 2, 3 or 4;
s is 0 or 1;
t is 0 or 1;
m, n and p are each independently selected from 0-4;
provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6;
provided that when p is 0 and t is 1, the sum of m, n and p is 1-5; and provided that when p is 0 and s is 1, the sum of m, t and n is 1-5;
v is 0 or 1;
j and k are each independently 1-5, provided that the sum of j, k and v is 1-5;

Q is a bond, -(CH2)q-, wherein q is 1-6, or, with the 3-position ring carbon of the azetidinone, forms the spiro group wherein R12 is R13 and R14 are each independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)-, -C(di-(C1-C6) alkyl), -CH=CH- and -C(C1-C6 alkyl)=CH-;
or R12 together with an adjacent R13, or R12 together with an adjacent R14, form a -CH=CH- or a -CH=C(C1-C6 alkyl)- group;

a and b are each independently 0, 1, 2 or 3, provided both are not zero;
provided that when R13 is -CH=CH- or -C(C1-C6 alkyl)=CH-, a is 1; provided that when R14 is -CH=CH- or -C(C1-C6 alkyl)=CH-, b is 1; provided that when a is 2 or 3, the R13's can be the same or different; and provided that when b is 2 or 3, the R14's can be the same or different;

and when Q is a bond and L is then Ar1 can also be pyridyl, isoxazolyl, furanyl, pyrrolyl, thienyl, imidazolyl, pyrazolyl, thiazolyl, pyrazinyl, pyrimidinyl or pyridazinyl;

R19 and R20 are each independently selected from the group consisting of H, (C1-C6)alkyl, aryl and aryl-substituted (C1-C6)alkyl;

R21 is (C1-C6)alkyl, aryl or R24-substituted aryl;

R22 is H, (C1-C6)alkyl, aryl (C1-C6)alkyl, -C(O)R19 or -COOR19;

R23 and R24 are each independently selected from the group consisting of 1-3 substituents which are each independently selected from the group consisting of H, (C1-C6)alkyl, (C1-C6)alkoxy, -COOH, NO2, -NR19R20, -OH and halo; and R25 is H, -OH or (C1-C6)alkoxy.
2. ~The method according to claim 1, wherein the at least one sterol absorption inhibitor is represented by Formula (I):
or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein:
Ar1 and Ar2 are independently selected from the group consisting of aryl and R4-substituted aryl;
Ar3 is aryl or R5-substituted aryl;
X, Y and Z are independently selected from the group consisting of -CH2-, -CH(lower alkyl)- and -C(dilower alkyl)-;
R and R2 are independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9 and -O(CO)NR6R7;
R1 and R3 are independently selected from the group consisting of hydrogen, lower alkyl and aryl;
q is 0 or 1;
r is 0 or 1;
m, n and p are independently selected from 0, 1, 2, 3 or 4; provided that at least one of q and r is 1, and the sum of m, n, p, q and r is 1, 2, 3, 4, 5 or 6; and provided that when p is 0 and r is 1, the sum of m, q and n is 1, 2, 3, 4 or 5;

R4 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -(lower alkylene)COOR6, -CH=CH-COOR6, -CF3, -CN, -NO2 and halogen;

R5 is 1-5 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5-SOR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -(lower alkylene)COOR6 and -CH=CH-COOR6;

R6, R7 and R8 are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl; and R9 is lower alkyl, aryl or aryl-substituted lower alkyl.
3. The method according to claim 1, wherein the at least one sterol absorption inhibitor is represented by Formula (II):

or a pharmaceutically acceptable salt or solvate thereof.
4. ~The method according to claim 1, wherein the at least one sterol absorption inhibitor is administered to a subject in an amount ranging from about 0.1 to about 1000 milligrams of sterol absorption inhibitor per day.
5. ~The method according to claim 1, further comprising the step of administering at least one other agent useful for the treatment of an autoimmune disorder to the subject.
6. ~The method according to claim 5, wherein the other agent useful for the treatment of an autoimmune disorder is selected from the group consisting of:
a) ~disease modifying antirheumatic drugs;
b) ~nonsteroidal anitinflammatory drugs;
c) ~COX-2 selective inhibitors;
d) ~COX-1 inhibitors;
e) ~immunosuppressives; p70S6 kinase inhibitors; and inosine monophosphate dehydrogenase inhibitors;
f) ~steroids;
g) ~biological response modifiers; and h) ~other agents useful for the treatment of autoimmune disorders.
7. ~The method according to claim 1, further comprising the step of administering at least one HMG CoA reductase inhibitor to the subject.
8. The method according to claim 7, wherein the at least one HMG CoA
reductase inhibitor is atorvastatin.
9. The method according to claim 7, wherein the at least one HMG CoA
reductase inhibitor is simvastatin.
10. The method according to claim 1, wherein the subject has an autoimmune disorder selected from the group consisting of: Alopecia Areata, Ankylosing Spondylitis, Antiphospholipid Syndrome, Autoimmune Addison's Disease, Autoimmune Diabetes, Autoimmune Hemolytic Anemia, Autoimmune Hepatitis, Behcet's Disease, Bullous Pemphigoid, Cardiomyopathy, Celiac Sprue-Dermatitis, Chronic Fatigue Immune Dysfunction Syndrome (CFIDS), Chronic Inflammatory Demyelinating Polyneuropathy, Churg-Strauss Syndrome, Cicatricial Pemphigoid, CREST Syndrome, Cold Agglutinin Disease, Crohn's Disease, Discoid Lupus, Essential Mixed Cryoglobulinemia, Fibromyalgia-Fibromyositis, Good Pasture Syndrome, Graft Versus Host Disease, Graves' Disease, Guillain-Barré, Hashimoto's Thyroiditis, Idiopathic Pulmonary Fibrosis, Idiopathic Thrombocytopenia Purpura (ITP), IgA Nephropathy, Insulin Dependent Diabetes, Juvenile Arthritis, Lichen Planus, Lupus , Ménière's Disease, Mixed Connective Tissue Disease, Multiple Sclerosis, Myasthenia Gravis, Myositis, Pemphigus Vulgaris, Pernicious Anemia, Polyarteritis Nodosa, Polychondritis, Polyglandular Syndromes, Polymyalgia Rheumatica, Polymyositis and Dermatomyositis, Primary Agammaglobulinemia, Primary Biliary Cirrhosis, Psoriasis, Raynaud's Phenomenon, Reiter's Syndrome, Rheumatic Fever, Rheumatoid Arthritis, Sarcoidosis, Scleroderma, Sjögren's Syndrome, Stiff-Man Syndrome, Takayasu Arteritis, Temporal Arteritis/GianT-cell Arteritis, Ulcerative Colitis, Uveitis, Vasculitis, Vitiligo, and Wegener's Granulomatosis.
11. The method according to claim 1, wherein said sterol absorption inhibitor disrupts lipid raft formation and/or organization within the cell membranes of leukocytes.
12. The method according to claim 12, wherein said lipid raft disruption affects the pathogenesis of said autoimmune disorder by affecting at least one immune response selected from the group consisting of antigen presentation, T-cell activation, T-cell receptor signaling, adhesion molecule function, chemokine receptor signaling, and combinations thereof.
13. A method of treating or preventing an autoimmune disorder in a subject is provided, comprising the step of administering to a subject in need of such treatment an effective amount of at least one sterol absorption inhibitor represented by Formula (II) below:

or a pharmaceutically acceptable salt or solvate thereof.
14. The method according to claim 13, further comprising the step of administering to said subject at least one other agent useful for the treatment of an autoimmune disorder.
15. The method according to claim 14, wherein the subject has rheumatoid arthritis and wherein said other agent is selected from the group consisting of COX-2 inhibitors, COX inhibitors, immunosuppressives, steroids, PDE IV inhibitors, anti-TNF-.alpha. compounds, MMP inhibitors, glucocorticoids, chemokine inhibitors, selective inhibitors and combinations thereof.
16. A method of treating or preventing rheumatoid arthritis in a subject, comprising the step of administering to a subject in need of such treatment an effective amount of at least one sterol absorption inhibitor or a pharmaceutically acceptable salt or solvate thereof.
17. A composition comprising: (a) at least one sterol absorption inhibitor or a pharmaceutically acceptable salt or solvate thereof and (b) at least one other agent useful for the treatment of an autoimmune disorder, wherein the at least one sterol absorption inhibitor is selected from the group of compounds represented by:

(a) Formula(I):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein:
Ar1 and Ar2 are independently selected from the group consisting of aryl and R4 -substituted aryl;

Ar3 is aryl or R5 -substituted aryl;
X, Y and Z are independently selected from the group consisting of -CH2-, -CH(lower alkyl)- and -C(dilower alkyl)-;

R and R2 are independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9 and -O(CO)NR6R7;
R1 and R3 are independently selected from the group consisting of hydrogen, lower alkyl and aryl;
q is 0 or 1;
r is 0 or 1;

m, n and p are independently selected from 0, 1, 2, 3 or 4; provided that at least one of q and r is 1, and the sum of m, n, p, q and r is 1, 2, 3, 4, 5 or 6; and provided that when p is 0 and r is 1, the sum of m, q and n is 1, 2, 3, 4 or 5;

R4 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, ~
-NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -(lower alkylene)COOR6, -CH=CH-COOR6, -CF3, -CN, -NO2 and halogen;

R5 is 1-5 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, ~
-(lower alkylene)COOR6 and -CH=CH-COOR6;

R6, R7 and R8 are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl; and R9 is lower alkyl, aryl or aryl-substituted lower alkyl;

(b) Formula (III):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (III) above:

Ar1 is R3-substituted aryl;
Ar2 is R4-substituted aryl;

Ar3 is R5-substituted aryl;
Y and Z are independently selected from the group consisting of -CH2-, -CH(lower alkyl)- and -C(dilower alkyl)-;
A is selected from -O-, -S-, -S(O)- or -S(O)2-;
R1 is selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9 and -O(CO)NR6R7; R2 is selected from the group consisting of hydrogen, lower alkyl and aryl; or R1 and R2 together are =O:
q is 1, 2 or 3;
p is 0, 1, 2, 3 or 4;
R5 is 1-3 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR9, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2-lower alkyl, -NR6SO2-aryl, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2-alkyl, S(O)0-2-aryl, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, o-halogeno, m-halogeno, o-lower alkyl, m-lower alkyl, -(lower alkylene)-COOR6, and -CH=CH-COOR6;
R3 and R4 are independently 1-3 substituents independently selected from the group consisting of R5, hydrogen, p-lower alkyl, aryl, -NO2, -CF3 and p-halogeno;
R6, R7 and R8 are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl; and R9 is lower alkyl, aryl or aryl-substituted lower alkyl;
(c) Formula (IV):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (IV) above:
A is selected from the group consisting of R2-substituted heterocycloalkyl, R2-substituted heteroaryl, R2-substituted benzofused heterocycloalkyl, and R2-substituted benzofused heteroaryl;
Ar1 is aryl or R3-substituted aryl;
Ar2 is aryl or R4-substituted aryl;
Q is a bond or, with the 3-position ring carbon of the azetidinone, forms the spiro group and R1 is selected from the group consisting of:
-(CH2)q-, wherein q is 2-6, provided that when Q forms a spiro ring, q can also be zero or 1;
-(CH2)e-G-(CH2)r, wherein G is -O-, -C(O)-, phenylene, -NR8- or -S(O)0-2-, a is 0-5 and r is 0-5, provided that the sum of a and r is 1-6;
-(C2-C6 alkenylene)-; and -(CH2)f-V-(CH2)g-, wherein V is C3-C6 cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6;
R5 is selected from:

R6 and R7 are independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)-, -C(di-(C1-C6) alkyl), -CH=CH- and -C(C1-C6 alkyl)=CH-; or R5 together with an adjacent R6, or R5 together with an adjacent R7, form a -CH=CH- or a -CH=C(C1-C6 alkyl)- group;
a and b are independently 0, 1, 2 or 3, provided both are not zero; provided that when R6 is -CH=CH- or -C(C1-C6 alkyl)=CH-, a is 1; provided that when R7 is -CH=CH- or -C(C1-C6 alkyl)=CH-, b is 1; provided that when a is 2 or 3, the R6's can be the same or different; and provided that when b is 2 or 3, the R7's can be the same or different;
and when Q is a bond, R1 also can be selected from:

where M is -O-, -S-, -S(O)- or -S(O)2-;
X, Y and Z are independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)- and -C(di-(C1-C6) alkyl);
R10 and R12 are independently selected from the group consisting of -OR14, -O(CO)R14, -O(CO)OR16 and -O(CO)NR14R15;
R11 and R13 are independently selected from the group consisting of hydrogen, (C1-C6)alkyl and aryl; or R10 and R11 together are =O, or R12 and together are =O;
d is 1, 2 or 3;
h is 0, 1, 2, 3 or 4;
s is 0 or 1; t is 0 or 1; m, n and p are independently 0-4; provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6; provided that when p is 0 and t is 1, the sum of m, s and n is 1-5; and provided that when p is 0 and s is 1, the sum of m, t and n is 1-5;
v is 0 or 1;
j and k are independently 1-5, provided that the sum of j, k and v is 1-5;
R2 is 1-3 substituents on the ring carbon atoms selected from the group consisting of hydrogen, (C1-C10)alkyl, (C2-C10)alkenyl, (C2-C10)alkynyl, (C3-C6)cycloalkyl, (C3-C6)cycloalkenyl, R17-substituted aryl, R17-substituted benzyl, R17-substituted benzyloxy, R17-substituted aryloxy, halogeno, -NR14R15, NR14R15(C1-C6 alkylene)-, NR14R15C(O)(C1-C6 alkylene)-,-NHC(O)R16, OH, C1-C6 alkoxy, -OC(O)R16, -COR14, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy(C1-C6)alkyl, NO2, -S(O)0-2R16, -SO2NR14R15 and -(C1-C6 alkylene)COOR14; when R2 is a substituent on a heterocycloalkyl ring, R2 is as defined, or is =O or and, where R2 is a substituent on a substitutable ring nitrogen, it is hydrogen, (C1-C6)alkyl, aryl, (C1-C6)alkoxy, aryloxy, (C1-C6)alkylcarbonyl, arylcarbonyl, hydroxy, -(CH2)1-6 CONR18R18, wherein J is -O-, -NH-, -NR18- or -CH2-;
R3 and R4 are independently selected from the group consisting of 1-3 substituents independently selected from the group consisting of (C1-C6)alkyl, -OR14, -O(CO)R14, -O(CO)OR16, -O(CH2)1-5OR14, -O(CO)NR14R15, -NR14R15, -NR14(CO)R15, -NR14(CO)OR16, -NR14(CO)NR15R19, -NR14SO2R16, -COOR14, -CONR14R15, -COR14, -SO2NR14R15, S(O)0-2R16, -O(CH2)1-10-COOR14, -O(CH2)1-10CONR14R15, -(C1-C6 alkylene)-COOR14, -CH=CH-COOR14, -CF3, -CN, -NO2 and halogen;
R8 is hydrogen, (C1-C6)alkyl, aryl (C1-C6)alkyl, -C(O)R14 or -COOR14;
R9 and R17 are independently 1-3 groups independently selected from the group consisting of hydrogen, (C1-C6)alkyl, (C1-C6)alkoxy, -COOH, NO2, -NR14R15, OH and halogeno;
R14 and R15 are independently selected from the group consisting of hydrogen, (C1-C6)alkyl, aryl and aryl-substituted (C1-C6)alkyl;
R16 is (C1-C6)alkyl, aryl or R17-substituted aryl;
R18 is hydrogen or (C1-C6)alkyl; and R19 is hydrogen, hydroxy or (C1-C6)alkoxy;

(d) Formula (V):
or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (V) above:
Ar1 is aryl, R10-substituted aryl or heteroaryl;
Ar2 is aryl or R4-substituted aryl;
Ar3 is aryl or R5-substituted aryl;
X and Y are independently selected from the group consisting of -CH2-, -CH(lower alkyl)- and -C(dilower alkyl)-;
R is -OR6, -O(CO)R6, -O(CO)OR9 or -O(CO)NR6R7; R1 is hydrogen, lower alkyl or aryl; or R and R1 together are =O;
q is 0 or 1;
r is 0, 1 or 2;
m and n are independently 0, 1, 2, 3, 4 or 5; provided that the sum of m, n and q is 1, 2, 3, 4 or 5;
R4 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5 5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0.2 R9, -O(CH2)1-10-COOR6, -O(CH2)1-10 CONR6R7, -(lower alkylene)COOR6 and -CH=CH-COOR6;
R5 is 1-5 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5 OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10 -COOR5, -O(CH2)1-10 CONR6R7, -CF3, -CN, -NO2, halogen, -(lower alkylene)COOR6 and -CH=CH-COOR6;
R6, R7 and R8 are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl;
R9 is lower alkyl, aryl or aryl-substituted lower alkyl; and R10 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5 OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, -S(O)0-2 R9, -O(CH2)1-10 -COOR6, -O(CH2)1-10 CONR6R7, -CF3, -CN, -NO2 and halogen;
(e) Formula (VI):
or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (VI) above:
R1 is R2 and R3 are independently selected from the group consisting of:
-CH2-, -CH(lower alkyl)-, -C(di-lower alkyl)-, -CH=CH- and -C(lower alkyl)=CH-; or R1 together with an adjacent R2, or R1 together with an adjacent R3, form a -CH=CH- or a -CH=C(lower alkyl)- group;
u and v are independently 0, 1, 2 or 3, provided both are not zero; provided that when R2 is -CH=CH- or -C(lower alkyl)=CH-, v is 1; provided that when R3 is -CH=CH- or -C(lower alkyl)=CH-, u is 1; provided that when v is 2 or 3, the R2's can be the same or different; and provided that when u is 2 or 3, the R3's can be the same or different;
R4 is selected from B-(CH2)m C(O)-, wherein m is 0, 1, 2, 3, 4 or 5;~
B-(CH2)q-, wherein q is 0, 1, 2, 3, 4, 5 or 6;
B-(CH2)e-Z-(CH2)r, wherein Z is -O-, -C(O)-, phenylene, -N(R8)- or -S(O)0-2-, e is 0, 1, 2, 3, 4 or 5 and r is 0, 1, 2, 3, 4 or 5, provided that the sum of e and r is 0, 1, 2, 3, 4, 5 or 6;
B-(C2-C6 alkenylene)-;
B-(C4-C6 alkadienylene)-;
B-(CH2)t-Z-(C2-C6 alkenylene)-, wherein Z is as defined above, and wherein t is 0, 1, 2 or 3, provided that the sum of t and the number of carbon atoms in the alkenylene chain is 2, 3, 4, 5 or 6;
B-(CH2)f-V-(CH2)g-, wherein V is C3-C6 cycloalkylene, f is 1, 2, 3, 4 or 5 and g is 0, 1, 2, 3, 4 or 5, provided that the sum of f and g is 1, 2, 3, 4, 5 or 6;
B-(CH2)t-V-(C2-C6 alkenylene)- or B-(C2-C6 alkenylene)-V-(CH2)t-, wherein V and t are as defined above, provided that the sum of t and the number of carbon atoms in the alkenylene chain is 2, 3, 4, 5 or 6;
B-(CH2)a-Z-(CH2)b-V-(CH2)d-, wherein Z and V are as defined above and a, b and d are independently 0, 1, 2, 3, 4, 5 or 6, provided that the sum of a, b and d is 0, 1, 2, 3, 4, 5 or 6; or T-(CH2)s-, wherein T is cycloalkyl of 3-6 carbon atoms and s is 0, 1, 2, 3, 4, 5 or 6; or R1 and R4 together form the group ;

B is selected from indanyl, indenyl, naphthyl, tetrahydronaphthyl, heteroaryl or W-substituted heteroaryl, wherein heteroaryl is selected from the group consisting of pyrrolyl, pyridinyl, pyrimidinyl, pyrazinyl, triazinyl, imidazolyl, thiazolyl, pyrazolyl, thienyl, oxazolyl and furanyl, and for nitrogen-containing heteroaryls, the N-oxides thereof, or W is 1 to 3 substituents independently selected from the group consisting of lower alkyl, hydroxy lower alkyl, lower alkoxy, alkoxyalkyl, alkoxyalkoxy, alkoxycarbonylalkoxy, (lower alkoxyimino)-lower alkyl, lower alkanedioyl, lower alkyl lower alkanedioyl, allyloxy, -CF3, -OCF3, benzyl, R7-benzyl, benzyloxy, R7-benzyloxy, phenoxy, R7-phenoxy, dioxolanyl, N02,-N(R8)(R9), N(R8)(R9)-lower alkylene-, N(R8)(R9)-lower alkylenyloxy-, OH, halogeno, -CN, -N3, -NHC(O)OR10, -NHC(O)R10, R11O2SNH-, (R11O2S)2N-, -S(O)2NH2, -S(O)0-2R8, tert-butyldimethyl-silyloxymethyl, -C(O)R12, -COOR19, -CON(R8)(R9), -CH=CHC(O)R12, -lower alkylene-C(O)R12, R10C(O)(lower alkylenyloxy)-, N(R8)(R9)C(O)(lower alkylenyloxy)- and for substitution on ring carbon atoms, and the substituents on the substituted heteroaryl ring nitrogen atoms, when present, are selected from the group consisting of lower alkyl, lower alkoxy, -C(O)OR10, -C(O)R10, OH, N(R8)(R9)-lower alkylene-,N(R8)(R9)-lower alkylenyloxy-, -S(O)2NH2 and 2-(trimethylsilyl)-ethoxymethyl;
R7 is 1-3 groups independently selected from the group consisting of lower alkyl, lower alkoxy, -COOH, NO2, -N(R8)(R9), OH, and halogeno;
R8 and R9 are independently selected from H or lower alkyl;
R10 is selected from lower alkyl, phenyl, R7-phenyl, benzyl or R7-benzyl;
R11 is selected from OH, lower alkyl, phenyl, benzyl, R7-phenyl or R7-benzyl;

R12 is selected from H, OH, alkoxy, phenoxy, benzyloxy, -N(R8)(R9), lower alkyl, phenyl or R7-phenyl;
R13 is selected from -O-, -CH2-, -NH-, -N(lower alkyl)- or -NC(O)R19;
R15, R16 and R17 are independently selected from the group consisting of H
and the groups defined for W; or R15 is hydrogen and R16 and R17, together with adjacent carbon atoms to which they are attached, form a dioxolanyl ring;
R19 is H, lower alkyl, phenyl or phenyl lower alkyl; and R20 and R21 are independently selected from the group consisting of phenyl, W-substituted phenyl, naphthyl, W-substituted naphthyl, indanyl, indenyl, tetrahydronaphthyl, benzodioxolyl, heteroaryl, W-substituted heteroaryl, benzofused heteroaryl, W-substituted benzofused heteroaryl and cyclopropyl, wherein heteroaryl is as defined above;
(f) Formula (VIIA) or (VIIB):
or a pharmaceutically acceptable salt or solvate thereof, wherein in Formula (VIIA) or (VIIB) above:
A is -CH=CH-, -C.ident.C- or -(CH2)p- wherein p is 0, 1 or 2;
B is B' is D is -(CH2)m C(O)- or -(CH2)q- wherein m is 1, 2, 3 or 4 and q is 2, 3 or 4;
E is C10 to C20 alkyl or -C(O)-(C9 to C19)-alkyl, wherein the alkyl is straight or branched, saturated or containing one or more double bonds;
R is hydrogen, C1-C15 alkyl, straight or branched, saturated or containing one or more double bonds, or B-(CH2)r -, wherein r is 0, 1, 2, or 3;
R1, R2, R3, R1', R2', and R3' are independently selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, carboxy, NO2, NH2, OH, halogeno, lower alkylamino, dilower alkylamino, -NHC(O)OR5, R6O2SNH- and -S(O)2NH2;
R4 is wherein n is 0, 1, 2 or 3;
R5 is lower alkyl; and R6 is OH, lower alkyl, phenyl, benzyl or substituted phenyl wherein the substituents are 1-3 groups independently selected from the group consisting of lower alkyl, lower alkoxy, carboxy, NO2, NH2, OH, halogeno, lower alkylamino and dilower alkylamino;
or a pharmaceutically acceptable salt thereof or a prodrug thereof;

(g) Formula (VIII):
or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (VIII) above, R26 is H or OG1;
G and G1 are independently selected from the group consisting of H and provided that when R26 is H or OH, G is not H;
R, R a and R b are independently selected from the group consisting of H, -OH, halogeno, -NH2, azido, (C1-C6)alkoxy(C1-C6)-alkoxy or -W-R30;
W is independently selected from the group consisting of -NH-C(O)-, -O-C(O)--O-C(O)-N(R31)-, -NH-C(O)-N(R31)- and -O-C(S)-N(R31)-;
R2 and R6 are independently selected from the group consisting of H, (C1-C6)alkyl, aryl and aryl(C1-C6)alkyl;
R3, R4, R5, R7, R3a and R4a are independently selected from the group consisting of H, (C1-C6)alkyl, aryl(C1-C6)alkyl, -C(O)(C1-C6)alkyl and -C(O)aryl;
R30 is selected from the group consisting of R32-substituted T, R32-substituted-T-(C1-C6)alkyl, R32-substituted-(C2-C4)alkenyl, R32-substituted-(C1-C6)alkyl, R32-substituted-(C3-C7)cycloalkyl and R32-substituted-(C3-C7)cycloalkyl(C1-C6)alkyl;
R31 is selected from the group consisting of H and (C1-C4)alkyl;
T is selected from the group consisting of phenyl, furyl, thienyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, iosthiazolyl, benzothiazolyl, thiadiazolyl, pyrazolyl, imidazolyl and pyridyl;
R32 is independently selected from 1-3 substituents independently selected from the group consisting of halogeno, (C1-C4)alkyl, -OH, phenoxy, -CF3, -NO2, (C1-C4)alkoxy, methylenedioxy, oxo, (C1-C4)alkylsulfanyl, (C1-C4)alkylsulfinyl, (C1-C4)alkylsulfonyl, -N(CH3)2, -C(O)-NH(C1-C4)alkyl, -C(O)-N((C1-C4)alkyl)2, -C(O)-(C1-C4)alkyl, -C(O)-(C1-C4)alkoxy and pyrrolidinylcarbonyl; or R32 is a covalent bond and R31, the nitrogen to which it is attached and R32 form a pyrrolidinyl, piperidinyl, N-methyl-piperazinyl, indolinyl or morpholinyl group, or a (C1-C4)alkoxycarbonyl-substituted pyrrolidinyl, piperidinyl, N-methylpiperazinyl, indolinyl or morpholinyl group;
Ar1 is aryl or R10-substituted aryl;
Ar2 is aryl or R11-substituted aryl;
Q is a bond or, with the 3-position ring carbon of the azetidinone, forms the spiro group and R1 is selected from the group consisting of -(CH2)q-, wherein q is 2-6, provided that when Q forms a spiro ring, q can also be zero or 1;
-(CH2)e-E-(CH2)r-, wherein E is -O-, -C(O)-, phenylene, -NR22- or -S(O)0-2-, e is 0-5 and r is 0-5, provided that the sum of a and r is 1-6;
-(C2-C6)alkenylene-; and -(CH2)f-V-(CH2)g-, wherein V is C3-C6 cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6;
R12 is R13 and R14 are independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)-, -C(di-(C1-C6) alkyl), -CH=CH- and -C(C1-C6 alkyl)=CH-; or R12 together with an adjacent R13, or R12 together with an adjacent R14, form a -CH=CH- or a -CH=C(C1-C6 alkyl)- group;
a and b are independently 0, 1, 2 or 3, provided both are not zero;
provided that when R13 is -CH=CH- or -C(C1-C6 alkyl)=CH-, a is 1;
provided that when R14 is -CH=CH- or -C(C1-C6 alkyl)=CH-, b is 1;
provided that when a is 2 or 3, the R13's can be the same or different; and provided that when b is 2 or 3, the R14's can be the same or different;
and when Q is a bond, R1 also can be:
M is -O-, -S-, -S(O)- or -S(O)2-;
X, Y and Z are independently selected from the group consisting of -CH2-, -CH(C1-C6)alkyl- and -C(di-(C1-C6)alkyl);
R10 and R11 are independently selected from the group consisting of 1-3 substituents independently selected from the group consisting of (C1-C6)alkyl, -OR19, -O(CO)R19, -O(CO)OR21, -O(CH2)1-5OR19, -O(CO)NR19R20, -NR19R20, -NR19(CO)R20, -NR19(CO)OR21, -NR19(CO)NR20R25, -NR19SO2R21, -COOR19, -CONR19R20, -COR19, -SO2NR19R20, S(O)0-2R21, -O(CH2)1-10-COOR19, -O(CH2)1-10CONR19R20, -(C1-C6 alkylene)-COOR19, -CH=CH-COOR19, -CF3, -CN, -NO2 and halogen;

R15 and R17 are independently selected from the group consisting of -OR19, -O(CO)R19, -O(CO)OR21 and -O(CO)NR19R20;
R16 and R18 are independently selected from the group consisting of H, (C1-C6)alkyl and aryl; or R15 and R16 together are =O, or R17 and R18 together are =O;
d is 1, 2 or 3;
h is 0, 1, 2, 3 or 4;
s is 0 or 1; t is 0 or 1; m, n and p are independently 0-4;
provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6;
provided that when p is 0 and t is 1, the sum of m, s and n is 1-5; and provided that when p is 0 and s is 1, the sum of m, t and n is 1-5;
v is 0 or 1;
j and k are independently 1-5, provided that the sum of j, k and v is 1-5;
and when Q is a bond and R1 is Ar1 can also be pyridyl, isoxazolyl, furanyl, pyrrolyl, thienyl, imidazolyl, pyrazolyl, thiazolyl, pyrazinyl, pyrimidinyl or pyridazinyl;
R19 and R20 are independently selected from the group consisting of H, (C1-C6)alkyl, aryl and aryl-substituted (C1-C6)alkyl;
R21 is (C1-C6)alkyl, aryl or R24-substituted aryl;
R22 is H, (C1-C6)alkyl, aryl (C1-C6)alkyl, -C(O)R19 or -COOR19;
R23 and R24 are independently 1-3 groups independently selected from the group consisting of H, (C1-C6)alkyl, (C1-C6)alkoxy, -COOH, NO2, -NR19R20, -OH and halogeno; and R25 is H, -OH or (C1-C6)alkoxy; and (h) Formula (IX):

or a pharmaceutically acceptable salt or solvate thereof, wherein in Formula (IX):
R1 is selected from the group consisting of H, G, G1, G2, -SO3H and -PO3H;
G is selected from the group consisting of: H, wherein R, R a and R b are each independently selected from the group consisting of H, -OH, halo, -NH2, azido, (C1-C6)alkoxy(C1-C6)alkoxy or -W-R30;
W is independently selected from the group consisting of -NH-C(O)-, -O-C(O)-, -O-C(O)-N(R31)-, -NH-C(O)-N(R31)- and -O-C(S)-N(R31)-;

R2 and R6 are each independently selected from the group consisting of H, (C1-C6)alkyl, acetyl, aryl and aryl(C1-C6)alkyl;
R3, R4, R5, R7, R3a and R4a are each independently selected from the group consisting of H, (C1-C6)alkyl, acetyl, aryl(C1-C6)alkyl, -C(O)(C1-C6)alkyl and -C(O)aryl;
R30 is independently selected from the group consisting of R32-substituted T, R32-substituted-T-(C1-C6)alkyl, R32-substituted-(C2-C4)alkenyl, R32-substituted-(C1-C6)alkyl, R32-substituted-(C3-C7)cycloalkyl and R32-substituted-(C3-C7)cycloalkyl(C1-C6)alkyl;
R31 is independently selected from the group consisting of H and (C1-C4)alkyl;
T is independently selected from the group consisting of phenyl, furyl, thienyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, benzothiazolyl, thiadiazolyl, pyrazolyl, imidazolyl and pyridyl;
R32 is independently selected from 1-3 substituents which are each independently selected from the group consisting of H, halo, (C1-C4)alkyl, -OH, phenoxy, -CF3, -NO2, (C1-C4)alkoxy, methylenedioxy, oxo, (C1-C4)alkylsulfanyl, (C1-C4)alkylsulfinyl, (C1-C4)alkylsulfonyl, -N(CH3)2, -C(O)-NH(C1-C4)alkyl, -C(O)-N((C1-C4)alkyl)2, -C(O)-(C1-C4)alkyl, -C(O)-(C1-C4)alkoxy and pyrrolidinylcarbonyl;
or R32 is a covalent bond and R31, the nitrogen to which it is attached and R32 form a pyrrolidinyl, piperidinyl, N-methyl-piperazinyl, indolinyl or morpholinyl group, or a (C1-C4)alkoxycarbonyl-substituted pyrrolidinyl, piperidinyl, N-methylpiperazinyl, indolinyl or morpholinyl group;

G1 is represented by the structure:
wherein R33 is independently selected from the group consisting of unsubstituted alkyl, R34-substituted alkyl, (R35)(R36)alkyl-, R34 is one to three substituents, each R34 being independently selected from the group consisting of HOOC-, HO-, HS-, (CH3)S-, H2N-, (NH2)(NH)C(NH)-, (NH2)C(O)- and HOOCCH(NH2+)CH2SS-;
R35 is independently selected from the group consisting of H and NH2-;
R36 is independently selected from the group consisting of H, unsubstituted alkyl, R34-substituted alkyl, unsubstituted cycloalkyl and R34-substituted cycloalkyl;
G2 is represented by the structure:
wherein R37 and R38 are each independently selected from the group consisting of (C1-C6)alkyl and aryl;
R26 is one to five substituents, each R26 being independently selected from the group consisting of:
a) H;
b) -OH;
c) -OCH3;

d) fluorine;
e) chlorine;
f) ~O-G;
g) -O-G1;
h) -O-G2;
i) -SO3H; and j) ~PO3H;
provided that when R1 is H, R26 is not H, ~OH, -OCH3 or ~O-G;
Ar1 is aryl, R10-substituted aryl, heteroaryl or R10-substituted heteroaryl;
Ar2 is aryl, R11-substituted aryl, heteroaryl or R11-substituted heteroaryl;
L is selected from the group consisting of:
a) a covalent bond;
b) -(CH2)q-, wherein q is 1-6;
c) -(CH2)e-E-(CH2)r-, wherein E is ~O-, -C(O)-, phenylene, -NR22- or ~S(O)0-2-, e is 0-5 and r is 0-5, provided that the sum of e and r is 1-6;
d) ~(C2-C6)alkenylene-;
e) -(CH2)f-V-(CH2)g-, wherein V is C3-C6cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6; and f) wherein M is ~O-, -S-, -S(O)- or ~S(O)2-;
X, Y and Z are each independently selected from the group consisting of ~CH2-, -CH(C1-C6)alkyl- and ~C(di-(C1-C6)alkyl)-;

R8 is selected from the group consisting of H and alkyl;
R10 and R11 are each independently selected from the group consisting of 1-3 substituents which are each independently selected from the group consisting of (C1-C6)alkyl, -OR19, -O(CO)R19, -O(CO)OR21, -O(CH2)1-5OR19, -O(CO)NR19R20, -NR19R20, -NR19(CO)R20, -NR19(CO)OR21, -NR19(CO)NR20R25 -NR19SO2R21, -COOR19, -CONR19R20, -COR19, -SO2NR19R20, S(O)0-2R21, -O(CH2)1-10-COOR19, -O(CH2)1-10CONR19R20, -(C1-C6 alkylene)-COOR19, -CH=CH-COOR19, -CF3, -CN, -NO2 and halo;
R15 and R17 are each independently selected from the group consisting of ~OR19, -OC(O)R19, -OC(O)OR21, - OC(O)NR19R20;
R16 and R18are each independently selected from the group consisting of H, (C1-C6)alkyl and aryl;
or R15 and R16 together are =O, or R17 and R18 together are =O;
d is 1, 2 or 3;
h is 0, 1, 2, 3 or 4;
s is 0 or 1;
t is 0 or 1;
m, n and p are each independently selected from 0-4;
provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6;
provided that when p is 0 and t is 1, the sum of m, n and p is 1-5; and provided that when p is 0 and s is 1, the sum of m, t and n is 1-5;
v is 0 or 1;
j and k are each independently 1-5, provided that the sum of j, k and v is 1-5;

Q is a bond, -(CH2)q-, wherein q is 1-6, or, with the 3-position ring carbon of the azetidinone, forms the spiro group wherein R12 is R13 and R14 are each independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)-, -C(di-(C1-C6) alkyl), -CH=CH- and -C(C1-C6 alkyl)=CH-;
or R12 together with an adjacent R13, or R12 together with an adjacent R14, form a -CH=CH- or a -CH=C(C1-C6 alkyl)- group;
a and b are each independently 0, 1, 2 or 3, provided both are not zero;
provided that when R13 is -CH=CH- or -C(C1-C6 alkyl)=CH-, a is 1; provided that when R14 is -CH=CH- or -C(C1-C6 alkyl)=CH-, b is 1; provided that when a is 2 or 3, the R13's can be the same or different; and provided that when b is 2 or 3, the R14's can be the same or different;
and when Q is a bond and L is then Ar1 can also be pyridyl, isoxazolyl, furanyl, pyrrolyl, thienyl, imidazolyl, pyrazolyl, thiazolyl, pyrazinyl, pyrimidinyl or pyridazinyl;

R19 and R20 are each independently selected from the group consisting of H, (C1-C6)alkyl, aryl and aryl-substituted (C1-C6)alkyl;
R21 is (C1-C6)alkyl, aryl or R24-substituted aryl;
R22 is H, (C1-C6)alkyl, aryl (C1-C6)alkyl, -C(O)R19 or -COOR19;
R23 and R24 are each independently selected from the group consisting of 1-3 substituents which are each independently selected from the group consisting of H, (C1-C6)alkyl, (C1-C6)alkoxy, -COOH, NO2, -NR19R20, -OH and halo; and R28 is H, -OH or (C1-C6)alkoxy.
18. A therapeutic combination comprising: (a) a first amount of at least one sterol absorption inhibitor or a pharmaceutically acceptable salt or solvate thereof;
and (b) a second amount of at least one other agent useful for the treatment of an autoimmune disorder, wherein the first amount and the second amount together comprise a therapeutically effective amount for the treatment or prevention of an autoimmune disorder in a subject, wherein the at least one sterol absorption inhibitor is selected from the group of compounds represented by:
(a) Formula (I):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein:
Ar1 and Ar2 are independently selected from the group consisting of aryl and R4-substituted aryl;
Ar3 is aryl or R6-substituted aryl;
X, Y and Z are independently selected from the group consisting of -CH2-, -CH(lower alkyl)- and -C(dilower alkyl)-;
R and R2 are independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9 and -O(CO)NR6R7;
R1 and R3 are independently selected from the group consisting of hydrogen, lower alkyl and aryl;
q is 0 or 1;
r is 0 or 1;
m, n and p are independently selected from 0, 1, 2, 3 or 4; provided that at least one of q and r is 1, and the sum of m, n, p, q and r is 1, 2, 3, 4, 5 or 6; and provided that when p is 0 and r is 1, the sum of m, q and n is 1, 2, 3, 4 or 5;
R4 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -(lower alkylene)COOR6, -CH=CH-COOR6, -CF3, -CN, -NO2 and halogen;
R5 is 1-5 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R9, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -(lower alkylene)COOR6 and -CH=CH-COOR6;

R6, R7 and R8 are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl; and R9 is lower alkyl, aryl or aryl-substituted lower alkyl;
(b) Formula (III):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (III) above:

Ar1 is R3-substituted aryl;
Ar2 is R4-substituted aryl;
Ar3 is R5-substituted aryl;
Y and Z are independently selected from the group consisting of -CH2-, -CH(lower alkyl)- and -C(dilower alkyl)-;
A is selected from -O-, -S-, -S(O)- or -S(O)2-;
R1 is selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9 and -O(CO)NR6R7; R2 is selected from the group consisting of hydrogen, lower alkyl and aryl; or R1 and R2 together are =O;
q is 1, 2 or 3;
p is 0, 1, 2, 3 or 4;
R5 is 1-3 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR9, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2-lower alkyl, -NR6SO2-aryl, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2-alkyl, S(O)0-2-aryl, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, o-halogeno, m-halogeno, o-lower alkyl, m-lower alkyl, -(lower alkylene)-COOR6, and ]

-CH=CH-COOR6;
R3 and R4 are independently 1-3 substituents independently selected from the group consisting of R5, hydrogen, p-lower alkyl, aryl, -NO2, -CF3 and p-halogeno;
R6, R7 and R8 are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl; and R9 is lower alkyl; aryl or aryl-substituted lower alkyl;
(c) Formula (IV):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (IV) above:

A is selected from the group consisting of R2-substituted heterocycloalkyl, R2-substituted heteroaryl, R2-substituted benzofused heterocycloalkyl, and R2-substituted benzofused heteroaryl;
Ar1 is aryl or R3-substituted aryl;
Ar2 is aryl or R4-substituted aryl;
Q is a bond or, with the 3-position ring carbon of the azetidinone, forms the spiro group and R1 is selected from the group consisting of:
-(CH2)q-, wherein q is 2-6, provided that when Q forms a spiro ring, q can also be zero or 1;
-(CH2)e-G-(CH2)r, wherein G is -O-, -C(O)-, phenylene, -NR8- or -S(O)0-2-, a is 0-5 and r is 0-5, provided that the sum of a and r is 1-6;
-(C2-C6 alkenylene)-; and -(CH2)f-V-(CH2)g-, wherein V is C3-C6 cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6;
R5 is selected from:
R6 and R7 are independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)-, -C(di-(C1-C6) alkyl),-CH=CH- and -C(C1-C6 alkyl)=CH-; or R5 together with an adjacent R6, or R5 together with an adjacent R7, form a -CH=CH- or a -CH=C(C1-C6 alkyl)- group;
a and b are independently 0, 1, 2 or 3, provided both are not zero; provided that when R6 is -CH=CH- or -C(C1-C6 alkyl)=CH-, a is 1; provided that when R7 is -CH=CH- or -C(C1-C6 alkyl)=CH-, b is 1; provided that when a is 2 or 3, the R6's can be the same or different; and provided that when b is 2 or 3, the R7's can be the same or different;
and when Q is a bond, R1 also can be selected from:
where M is -O-, -S-, -S(O)- or -S(O)2-;
X, Y and Z are independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)- and -C(di-(C1-C6) alkyl);
R10 and R12 are independently selected from the group consisting of -OR14, -O(CO)R14, -O(CO)OR16 and -O(CO)NR14R15;
R11 and R13 are independently selected from the group consisting of hydrogen, (C1-C6)alkyl and aryl; or R10 and R11 together are =O, or R12 and together are =O;
d is 1,2or3;
h is 0, 1, 2, 3 or 4;

s is 0 or 1; t is 0 or 1; m, n and p are independently 0-4; provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6; provided that when p is 0 and t is 1, the sum of m, s and n is 1-5; and provided that when p is 0 and s is 1, the sum of m, t and n is 1-5;
v is 0 or 1;
j and k are independently 1-5, provided that the sum of j, k and v is 1-5;
R2 is 1-3 substituents on the ring carbon atoms selected from the group consisting of hydrogen, (C1-C10)alkyl, (C2 C10)alkenyl, (C2 C10)alkynyl, (C3 -C6)cycloalkyl, (C3-C6)cycloalkenyl, R17-substituted aryl, R17-substituted benzyl, R17-substituted benzyloxy, R17-substituted aryloxy, halogeno, -NR14R15, NR14R15(C1-C6 alkylene)-, NR14R15C(O)(C1-C6 alkylene)-,-NHC(O)R16, OH, C1-C6 alkoxy, -OC(O)R16, -COR14, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy(C1-C6)alkyl, NO2, -S(O)0-2R16, -S02NR14R15 and -(C1-C6 alkylene)COOR14; when R2 is a substituent on a heterocycloalkyl ring, R2 is as defined, or is =O or and, where R2 is a substituent on a substitutable ring nitrogen, it is hydrogen, (C1-C6)alkyl, aryl, (C1-C6)alkoxy, aryloxy, (C1-C6)alkylcarbonyl, arylcarbonyl, hydroxy, -(CH2)1-6CONR18R18, wherein J is -O-, -NH-, -NR18- or -CH2-;
R3 and R4 are independently selected from the group consisting of 1-3 substituents independently selected from the group consisting of (C1-C6)alkyl, -OR14,-O(CO)R14, -O(CO)OR16, -O(CH2)1-5OR14, -O(CO)NR14R15,-NR14R15, -NR14 (CO)R15 , -NR14(CO)OR16 , -NR14(CO)NR15R19, -NR14 SO2R16, -COOR14, -CONR14R15, -COR14, -SO2NR14R15, S(O)0-2R16, -O(CH2)1-1-COOR14, -O(CH2)1-10CONR14R15, -(C1-C6 alkylene)-COOR14, -CH=CH-COOR14, -CF3, -CN, -NO2 and halogen;
R8 is hydrogen, (C1-C6)alkyl, aryl (C1-C6)alkyl, -C(O)R14 or -COOR14;
R9 and R17 are independently 1-3 groups independently selected from the group consisting of hydrogen, (C1-C6)alkyl, (C1-C6)alkoxy, -COOH, NO2, -NR14R15, OH and halogeno;
R14 and R15 are independently selected from the group consisting of hydrogen, (C1-C6)alkyl, aryl and aryl-substituted (C1-C6)alkyl;
R16 is (C1-C6)alkyl, aryl or R17-substituted aryl;
R18 is hydrogen or (C1-C6)alkyl; and R19 is hydrogen, hydroxy or (C1-C6)alkoxy;

(d) Formula (V):
or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (V) above:
Ar1 is aryl, R10-substituted aryl or heteroaryl;
Ar2 is aryl or R4-substituted aryl;
Ar3 is aryl or R5-substituted aryl;
X and Y are independently selected from the group consisting of -CH2 , -CH(lower alkyl)- and -C(dilower alkyl)-;
R is -OR6, -O(CO)R6, -O(CO)OR9 or -O(CO)NR6R7; R1 is hydrogen, lower alkyl or aryl; or R and R1 together are =O;
q is 0 or 1;
r is 0, 1 or 2;

m and n are independently 0, 1, 2, 3, 4 or 5; provided that the sum of m, n and q is 1, 2, 3, 4 or 5;

R4 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10 COOR6, -O(CH2)1-10CONR6R7, -(lower alkylene)COOR6 and -CH=CH-COOR6;
R5 is 1-5 substituents independently selected from the group consisting of -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6O2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -CF3, -CN, -NO2, halogen, -(lower alkylene)COOR6 and -CH=CH-COOR6;
R6, R7 and R8 are independently selected from the group consisting of hydrogen, lower alkyl, aryl and aryl-substituted lower alkyl;
R9 is lower alkyl, aryl or aryl-substituted lower alkyl; and R10 is 1-5 substituents independently selected from the group consisting of lower alkyl, -OR6, -O(CO)R6, -O(CO)OR9, -O(CH2)1-5OR6, -O(CO)NR6R7, -NR6R7, -NR6(CO)R7, -NR6(CO)OR9, -NR6(CO)NR7R8, -NR6SO2R9, -COOR6, -CONR6R7, -COR6, -SO2NR6R7, -S(O)0-2R9, -O(CH2)1-10-COOR6, -O(CH2)1-10CONR6R7, -CF3, -CN, -NO2 and halogen;

(e) Formula (VI):

or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (VI) above:
R1 is R2 and R3 are independently selected from the group consisting of:
-CH2-, -CH(lower alkyl)-, -C(di-lower alkyl)-, -CH=CH- and -C(lower alkyl)=CH-; or R1 together with an adjacent R2, or R1 together with an adjacent R3, form a -CH=CH- or a -CH=C(lower alkyl)- group;
u and v are independently 0, 1, 2 or 3, provided both are not zero; provided that when R2 is -CH=CH- or -C(lower alkyl)=CH-, v is 1; provided that when R3 is -CH=CH- or -C(lower alkyl)=CH-, a is 1; provided that when v is 2 or 3, the R2's can be the same or different; and provided that when a is 2 or 3, the R3's can be the same or different;
R4 is selected from B-(CH2)mC(O)-, wherein m is 0, 1, 2, 3, 4 or 5;
B-(CH2)q-, wherein q is 0, 1, 2, 3, 4, 5 or 6;
B-(CH2)e-Z-(CH2)r-, wherein Z is -O-, -C(O)-, phenylene, -N(R8)- or -S(O)0-2-, e is 0, 1, 2, 3, 4 or 5 and r is 0, 1, 2, 3, 4 or 5, provided that the sum of e and r is 0, 1, 2, 3, 4, 5 or 6;
B-(C2-C6 alkenylene)-;
B-(C4-C6 alkadienylene)-;

B-(CH2)t-Z-(C2-C6 alkenylene)-, wherein Z is as defined above, and wherein t is 0, 1, 2 or 3, provided that the sum of t and the number of carbon atoms in the alkenylene chain is 2, 3, 4, 5 or 6;
B-(CH2)f-V-(CH2)g-, wherein V is C3-C6 cycloalkylene, f is 1, 2, 3, 4 or 5 and g is 0, 1, 2, 3, 4 or 5, provided that the sum of f and g is 1, 2, 3, 4, 5 or 6;
B-(CH2)t-V-(C2-C6 alkenylene)- or B-(C2-C6 alkenylene)-V-(CH2)t-, wherein V and t are as defined above, provided that the sum of t and the number of carbon atoms in the alkenylene chain is 2, 3, 4, 5 or 6;
B-(CH2)a-Z-(CH2)b-V-(CH2)d-, wherein Z and V are as defined above and a, b and d are independently 0, 1, 2, 3, 4, 5 or 6, provided that the sum of a, b and d is 0, 1, 2, 3, 4, 5 or 6; or T-(CH2)s-, wherein T is cycloalkyl of 3-6 carbon atoms and s is 0, 1, 2, 3, 4, 5 or 6; or R1 and R4 together form the group ;
B is selected from indanyl, indenyl, naphthyl, tetrahydronaphthyl, heteroaryl or W-substituted heteroaryl, wherein heteroaryl is selected from the group consisting of pyrrolyl, pyridinyl, pyrimidinyl, pyrazinyl, triazinyl, imidazolyl, thiazolyl, pyrazolyl, thienyl, oxazolyl and furanyl, and for nitrogen-containing heteroaryls, the N-oxides thereof, or W is 1 to 3 substituents independently selected from the group consisting of lower alkyl, hydroxy lower alkyl, lower alkoxy, alkoxyalkyl, alkoxyalkoxy, alkoxycarbonylalkoxy, (lower alkoxyimino)-lower alkyl, lower alkanedioyl, lower alkyl lower alkanedioyl, allyloxy, -CF3, -OCF3, benzyl, R7-benzyl, benzyloxy, R7-benzyloxy, phenoxy, R7-phenoxy, dioxolanyl, NO2,-N(R8)(R9), N(R8)(R9)-lower alkylene-, N(R8)(R9)-lower alkylenyloxy-, OH, halogeno, -CN, -N3, -NHC(O)OR10, -NHC(O)R10, R11O2SNH-, (R11O2S)2N-, -S(O)2NH2, -S(O)0-2R8, tert-butyldimethyl-silyloxymethyl, -C(O)R12, -COOR19, -CON(R8)(R9), -CH=CHC(O)R12, -lower alkylene-C(O)R12, R10C(O)(lower alkylenyloxy)-, N(R8)(R9)C(O)(lower alkylenyloxy)- and for substitution on ring carbon atoms, and the substituents on the substituted heteroaryl ring nitrogen atoms, when present, are selected from the group consisting of lower alkyl, lower alkoxy, -C(O)OR10, -C(O)R10, OH, N(R8)(R9)-lower alkylene-,N(R8)(R9)-lower alkylenyloxy-, -S(O)2NH2 and 2-(trimethylsilyl)-ethoxymethyl;
R7 is 1-3 groups independently selected from the group consisting of lower alkyl, lower alkoxy, -COOH, NO2, -N(R8)(R9), OH, and halogeno;
R8 and R9 are independently selected from H or lower alkyl;
R10 is selected from lower alkyl, phenyl, R7-phenyl, benzyl or R7-benzyl;
R11 is selected from OH, lower alkyl, phenyl, benzyl, R7-phenyl or R7-benzyl;
R12 is selected from H, OH, alkoxy, phenoxy, benzyloxy, -N(R8)(R9), lower alkyl, phenyl or R7-phenyl;
R13 is selected from -O-, -CH2-, -NH-, -N(lower alkyl)- or -NC(O)R19;
R15, R16 and R17 are independently selected from the group consisting of H
and the groups defined for W; or R15 is hydrogen and R16 and R17, together with adjacent carbon atoms to which they are attached, form a dioxolanyl ring;
R19 is H, lower alkyl, phenyl or phenyl lower alkyl; and R20 and R21 are independently selected from the group consisting of phenyl, W-substituted phenyl, naphthyl, W-substituted naphthyl, indanyl, indenyl, tetrahydronaphthyl, benzodioxolyl, heteroaryl, W-substituted heteroaryl, benzofused heteroaryl, W-substituted benzofused heteroaryl and cyclopropyl, wherein heteroaryl is as defined above;
(f) Formula (VIIA) or (VIIB):

or a pharmaceutically acceptable salt or solvate thereof, wherein in Formula (VIIA) or (VIIB) above:
A is -CH=CH-, -C.ident.C- or -(CH2)p- wherein p is 0, 1 or 2;
B is B' is D is -(CH2)m C(O)- or -(CH2)q- wherein m is 1, 2, 3 or 4 and q is 2, 3 or 4;
E is C10 to C20 alkyl or -C(O)-(C9 to C19)-alkyl, wherein the alkyl is straight or branched, saturated or containing one or more double bonds;

R is hydrogen, C1-C15 alkyl, straight or branched, saturated or containing one or more double bonds, or B-(CH2)r -, wherein r is 0, 1, 2, or 3;
R1, R2, R3, R1', R2', and R3' are independently selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, carboxy, NO2, NH2, OH, halogeno, lower alkylamino, dilower alkylamino, -NHC(O)OR5, R6O2SNH- and -S(O)2NH2;
R4 is wherein n is 0, 1, 2 or 3;
R5 is lower alkyl; and R6 is OH, lower alkyl, phenyl, benzyl or substituted phenyl wherein the substituents are 1-3 groups independently selected from the group consisting of tower alkyl, lower alkoxy, carboxy, NO2, NH2, OH, halogeno, lower alkylamino and dilower alkylamino;
or a pharmaceutically acceptable salt thereof or a prodrug thereof;
(g) Formula (VIII):
or a pharmaceutically acceptable salt thereof or a solvate thereof, wherein in Formula (VIII) above, R26 is H or OG1;
G and G1 are independently selected from the group consisting of H, and provided that when R26 is H or OH, G is not h;
R, R a and R b are independently selected from the group consisting of H, -OH, halogeno, -NH2, azido, (C1-C6)alkoxy(C1-C6)-alkoxy or -W-R30;
W is independently selected from the group consisting of -NH-C(O)-, -O-C(O)--O-C(O)-N(R31)-, -NH-C(O)-N(R31)- and -O-C(S)-N(R31)-;
R2 and R6 are independently selected from the group consisting of H, (C1-C6)alkyl, aryl and aryl(C1-C6)alkyl;
R3, R4, R5, R7, R3a and R4a are independently selected from the group consisting of H, (C1-C6)alkyl, aryl(C1-C6)alkyl, -C(O)(C1-C6)alkyl and -C(O)aryl;
R30 is selected from the group consisting of R32-substituted T, R32-substituted-T-(C1-C6)alkyl, R32-substituted-(C2-C4)alkenyl, R32-substituted-(C1-C6)alkyl, R32-substituted-(C3-C7)cycloalkyl and R32-substituted-(C3-C7)cycloalkyl(C1-C6)alkyl;
R31 is selected from the group consisting of H and (C1-C4)alkyl;
T is selected from the group consisting of phenyl, furyl, thienyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, iosthiazolyl, benzothiazolyl, thiadiazolyl, pyrazolyl, imidazolyl and pyridyl;
R32 is independently selected from 1-3 substituents independently selected from the group consisting of halogeno, (C1-C4)alkyl, -OH, phenoxy, -CF3, -NO2, (C1-C4)alkoxy, methylenedioxy, oxo, (C1-C4)alkylsulfanyl, (C1-C4)alkylsulfinyl, (C1-C4)alkylsulfonyl, -N(CH3)2, -C(O)-NH(C1-C4)alkyl, -C(O)-N((C1-C4)alkyl)2, -C(O)-(C1-C4)alkyl, -C(O)-(C1-C4)alkoxy and pyrrolidinylcarbonyl; or R32 is a covalent bond and R31, the nitrogen to which it is attached and R32 form a pyrrolidinyl, piperidinyl, N-methyl-piperazinyl, indolinyl or morpholinyl group, or a (C1-C4)alkoxycarbonyl-substituted pyrrolidinyl, piperidinyl, N-methylpiperazinyl, indolinyl or morpholinyl group;
Ar1 is aryl or R10-substituted aryl;
Ar2 is aryl or R11-substituted aryl;
Q is a bond or, with the 3-position ring carbon of the azetidinone, forms the spiro group and R1 is selected from the group consisting of -(CH2)q-, wherein q is 2-6, provided that when Q forms a spiro ring, q can also be zero or 1;
-(CH2)e-E-(CH2)r-, wherein E is -O-, -C(O)-, phenylene, -NR22- or -S(O)0-2-, e is 0-5 and r is 0-5, provided that the sum of a and r is 1-6;
-(C2-C6)alkenylene-; and -(CH2)f-V-(CH2)g-, wherein V is C3-C6 cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6;
R12 is R13 and R14 are independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)-, -C(di-(C1-C6) alkyl), -CH=CH- and -C(C1-C6 alkyl)=CH-; or R12 together with an adjacent R13, or R12 together with an adjacent R14, form a -CH=CH- or a -CH=C(C1-C6 alkyl)- group;
a and b are independently 0, 1, 2 or 3, provided both are not zero;
provided that when R13 is -CH=CH- or -C(C1-C6 alkyl)=CH-, a is 1;
provided that when R14 is -CH=CH- or -C(C1-C6 alkyl)=CH-, b is 1;

provided that when a is 2 or 3, the R13's can be the same or different; and provided that when b is 2 or 3, the R14's can be the same or different;
and when Q is a bond, R1 also can be:

M is -O-, -S-, -S(O)- or -S(O)2-;
X, Y and Z are independently selected from the group consisting of -CH2-, -CH(C1-C6)alkyl- and -C(di-(C1-C6)alkyl);
R10 and R11 are independently selected from the group consisting of 1-3 substituents independently selected from the group consisting of (C1-C6)alkyl, -OR19, -O(CO)R19, -O(CO)OR21, -O(CH2)1-5OR19, -O(CO)NR19R20, -NR19R20, -NR19(CO)R20, -NR19(CO)OR21, -NR19(CO)NR20R25 -NR19SO2R21, -COOR19, -CONR19R20, -COR19, -SO2NR19R20, S(O)0-2R21, -O(CH2)1-10-COOR19, -O(CH2)1-10CONR19R20, -(C1-C6 alkylene)-COOR19, -CH=CH-COOR19, -CF3, -CN, -NO2 and halogen;
R15 and R17 are independently selected from the group consisting of -OR19, -O(CO)R19, -O(CO)OR21 and -O(CO)NR19R20;
R16 and R18 are independently selected from the group consisting of H, (C1-C6)alkyl and aryl; or R15 and R16 together are =O, or R17 and R18 together are =O;
d is 1, 2 or 3;
h is 0, 1, 2, 3 or 4;
s is 0 or 1; t is 0 or 1; m, n and p are independently 0-4;
provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6;
provided that when p is 0 and t is 1, the sum of m, s and n is 1-5; and provided that when p is 0 and s is 1, the sum of m, t and n is 1-5;
v is 0 or 1;
j and k are independently 1-5, provided that the sum of j, k and v is 1-5;

and when Q is a bond and R1 is Ar1 can also be pyridyl, isoxazolyl, furanyl, pyrrolyl, thienyl, imidazolyl, pyrazolyl, thiazolyl, pyrazinyl, pyrimidinyl or pyridazinyl;
R19 and R20 are independently selected from the group consisting of H, (C1-C6)alkyl, aryl and aryl-substituted (C1-C6)alkyl;
R21 is (C1-C6)alkyl, aryl or R24-substituted aryl;
R22 is H, (C1-C6)alkyl, aryl (C1-C6)alkyl, -C(O)R19 or -COOR19;
R23 and R24 are independently 1-3 groups independently selected from the group consisting of H, (C1-C6)alkyl, (C1-C6)alkoxy, -COOH, NO2, -NR19R20, -OH and halogeno; and R25 is H, -OH or (C1-C6)alkoxy; and (h) Formula (IX):

or a pharmaceutically acceptable salt or solvate thereof, wherein in Formula (IX):
R1 is selected from the group consisting of H, G, G1, G2, -SO3H and -PO3H;
G is selected from the group consisting of: H, wherein R, R a and R b are each independently selected from the group consisting of H, -OH, halo, -NH2, azido, (C1-C6)alkoxy(C1-C6)alkoxy or -W-R30;
W is independently selected from the group consisting of -NH-C(O)-, -O-C(O)-, -O-C(O)-N(R31)-, -NH-C(O)-N(R31)- and -O-C(S)-N(R31)-;
R2 and R6 are each independently selected from the group consisting of H, (C1-C6)alkyl, acetyl, aryl and aryl(C1-C6)alkyl;
R3, R4, R5, R7, R3a and R4a are each independently selected from the group consisting of H, (C1-C6)alkyl, acetyl, aryl(C1-C6)alkyl, -C(O)(C1-C6)alkyl and C(O)aryl;
R30 is independently selected from the group consisting of R32-substituted T, R32-substituted-T-(C1-C6)alkyl, R32-substituted-(C2-C4)alkenyl, R32-substituted-(C1-C6)alkyl, R32-substituted-(C3-C7)cycloalkyl and R32-substituted-(C3-C7)cycloalkyl(C1-C6)alkyl;

R31 is independently selected from the group consisting of H and (C1-C4)alkyl;
T is independently selected from the group consisting of phenyl, furyl, thienyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, benzothiazolyl, thiadiazolyl, pyrazolyl, imidazolyl and pyridyl;
R32 is independently selected from 1-3 substituents which are each independently selected from the group consisting of H, halo, (C1-C4)alkyl, -OH, phenoxy, -CF3, -NO2, (C1-C4)alkoxy, methylenedioxy, oxo, (C1-C4)alkylsulfanyl, (C1-C4)alkylsulfinyl, (C1-C4)alkylsulfonyl, -N(CH3)2, -C(O)-NH(C1-C4)alkyl, -C(O)-N((C1-C4)alkyl)2, -C(O)-(C1-C4)alkyl, -C(O)-(C1-C4)alkoxy and pyrrolidinylcarbonyl;
or R32 is a covalent bond and R31, the nitrogen to which it is attached and R32 form a pyrrolidinyl, piperidinyl, N-methyl-piperazinyl, indolinyl or morpholinyl group, or a (C1-C4)alkoxycarbonyl-substituted pyrrolidinyl, piperidinyl, N-methylpiperazinyl, indolinyl or morpholinyl group;
G1 is represented by the structure:

wherein R33 is independently selected from the group consisting of unsubstituted alkyl, R34-substituted alkyl, (R35)(R36)alkyl-, R34 is one to three substituents, each R34 being independently selected from the group consisting of HOOC-, HO-, HS-, (CH3)S-, H2N-, (NH2)(NH)C(NH)-, (NH2)C(O)- and HOOCCH(NH2+)CH2SS-;
R35 is independently selected from the group consisting of H and NH2-;
R36 is independently selected from the group consisting of H, unsubstituted alkyl, R34-substituted alkyl, unsubstituted cycloalkyl and R34-substituted cycloalkyl;
G2 is represented by the structure:

wherein R37 and R38 are each independently selected from the group consisting of (C1-C6)alkyl and aryl;
R26 is one to five substituents, each R26 being independently selected from the group consisting of:
a) H;
b) -OH;
c) -OCH3;
d) fluorine;
e) chlorine;
f) -O-G;
g) -O-G1;
h) -O-G2;
i) -SO3H; and j) -PO3H;
provided that when R1 is H, R26 is not H, -OH, -OCH3 or -O-G;
Ar1 is aryl, R10-substituted aryl, heteroaryl or R10-substituted heteroaryl;
Ar2 is aryl, R10-substituted aryl, heteroaryl or R10-substituted heteroaryl;

L is selected from the group consisting of:

a) a covalent bond;

b) -(CH2)q-, wherein q is 1-6;

c) -(CH2)e-E-(CH2)r-, wherein E is -O-, -C(O)-, phenylene, -NR22- or -S(O)0-2-, e is 0-5 and r is 0-5, provided that the sum of e and r is 1-6;

d) -(C2-C6)alkenylene-;

e) -(CH2)f-V-(CH2)g-, wherein V is C3-C6cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6; and wherein M is -O-, -S-, -S(O)- or -S(O)2-;

X, Y and Z are each independently selected from the group consisting of -CH2-, -CH(C1-C6)alkyl- and -C(di-(C1-C6)alkyl)-;

R8 is selected from the group consisting of H and alkyl;

R10 and R11 are each independently selected from the group consisting of 1-3 substituents which are each independently selected from the group consisting of (C1-C6)alkyl, -OR19, -O(CO)R19, -O(CO)OR21, -O(CH2)1-5OR19,-O(CO)NR19R20, -NR19R20, -NR19(CO)R20, -NR19(CO)OR21, -NR19(CO)NR20R25, -NR19SO2R21, -COOR19, -CONR19R20, -COR19, -SO2NR19R20 S(O)0-2R21, -O(CH2)1-10-COOR19, -O(CH2)1-10CONR19R20, -(C1-C6 alkylene)-COOR19, -CH=CH-COOR19, -CF3, -CN, -NO2 and halo;

R15 and R17 are each independently selected from the group consisting of -OR19, -OC(O)R19, -OC(O)OR21, - OC(O)NR19R20;

R16 and R18 are each independently selected from the group consisting of H, (C1-C6)alkyl and aryl;

or R15 and R16 together are =O, or R17 and R18 together are =O;

d is 1, 2 or 3;

h is 0, 1, 2, 3 or 4;

s is 0 or 1;

t is 0 or 1;

m, n and p are each independently selected from 0-4;

provided that at least one of s and t is 1, and the sum of m, n, p, s and t is 1-6;

provided that when p is 0 and t is 1, the sum of m, n and p is 1-5; and provided that when p is 0 and s is 1,the sum of m,t and n is 1-5;

v is 0 or 1;

j and k are each independently 1-5, provided that the sum of j, k and v is 1-5;

Q is a bond, -(CH2)q-, wherein q is 1-6, or, with the 3-position ring carbon of the azetidinone, forms the spiro group wherein R12 is R13 and R14 are each independently selected from the group consisting of -CH2-, -CH(C1-C6 alkyl)-, -C(di-(C1-C6) alkyl), -CH=CH- and -C(C1-C6 alkyl)=CH-;

or R12 together with an adjacent R13, or R12 together with an adjacent R14, form a CH=CH- or a -CH=C(C1-C6 alkyl)- group;

a and b are each independently 0, 1, 2 or 3, provided both are not zero;

provided that when R13 is -CH=CH- or -C(C1-C6 alkyl)=CH-, a is 1; provided that when R14 is -CH=CH- or -C(C1-C6 alkyl)=CH-, b is 1; provided that when a is 2 or 3, the R13's can be the same or different; and provided that when b is 2 or 3, the R14's can be the same or different;

and when Q is a bond and L is then Ar1 can also be pyridyl, isoxazolyl, furanyl, pyrrolyl, thienyl, imidazolyl, pyrazolyl, thiazolyl, pyrazinyl, pyrimidinyl or pyridazinyl;

R19 and R20 are each independently selected from the group consisting of H, (C1-C6)alkyl, aryl and aryl-substituted (C1-C6)alkyl;

R21 is (C1-C6)alkyl, aryl or R24-substituted aryl;

R22 is H, (C1-C6)alkyl, aryl (C1-C6)alkyl, -C(O)R19 or -COOR19;

R23 and R24 are each independently selected from the group consisting of 1-3 substituents which are each independently selected from the group consisting of H, (C1-C6)alkyl, (C1-C6)alkoxy, -COOH, NO2, -NR19R20, -OH and halo; and R25 is H, -OH or (C1-C6)alkoxy.
19. Use of at least one compound of any of claims 1, 2, 3 or 4 for manufacture of a medicament for the treatment of an autoimmune disorder in a subject.
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