WO2002100870A1 - New napsylate salts ii - Google Patents
New napsylate salts ii Download PDFInfo
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- WO2002100870A1 WO2002100870A1 PCT/SE2002/001084 SE0201084W WO02100870A1 WO 2002100870 A1 WO2002100870 A1 WO 2002100870A1 SE 0201084 W SE0201084 W SE 0201084W WO 02100870 A1 WO02100870 A1 WO 02100870A1
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- Prior art keywords
- napsylate
- formula
- compound
- salt according
- salt
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- 150000003839 salts Chemical class 0.000 title claims abstract description 48
- 150000001875 compounds Chemical class 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000012453 solvate Substances 0.000 claims abstract description 16
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 239000008194 pharmaceutical composition Substances 0.000 claims abstract description 6
- 238000002560 therapeutic procedure Methods 0.000 claims abstract description 6
- 239000001257 hydrogen Substances 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 9
- 208000021302 gastroesophageal reflux disease Diseases 0.000 claims description 8
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 claims description 8
- KVBGVZZKJNLNJU-UHFFFAOYSA-N naphthalene-2-sulfonic acid Chemical compound C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 KVBGVZZKJNLNJU-UHFFFAOYSA-N 0.000 claims description 7
- 239000000825 pharmaceutical preparation Substances 0.000 claims description 7
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 125000006701 (C1-C7) alkyl group Chemical group 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 claims description 5
- 230000005764 inhibitory process Effects 0.000 claims description 5
- 208000002551 irritable bowel syndrome Diseases 0.000 claims description 5
- 125000006239 protecting group Chemical group 0.000 claims description 5
- 210000005070 sphincter Anatomy 0.000 claims description 5
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 206010067171 Regurgitation Diseases 0.000 claims description 4
- 206010047700 Vomiting Diseases 0.000 claims description 4
- 238000007259 addition reaction Methods 0.000 claims description 4
- 208000006673 asthma Diseases 0.000 claims description 4
- 125000001153 fluoro group Chemical group F* 0.000 claims description 4
- 125000004216 fluoromethyl group Chemical group [H]C([H])(F)* 0.000 claims description 4
- 206010015137 Eructation Diseases 0.000 claims description 3
- 208000031361 Hiccup Diseases 0.000 claims description 3
- 208000002193 Pain Diseases 0.000 claims description 3
- 208000027687 belching Diseases 0.000 claims description 3
- 229960003920 cocaine Drugs 0.000 claims description 3
- 201000006549 dyspepsia Diseases 0.000 claims description 3
- 230000020341 sensory perception of pain Effects 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 3
- QSEZFOAWAVHOBH-UHFFFAOYSA-N (3-amino-2-fluoropropyl)-methylphosphinic acid Chemical compound CP(O)(=O)CC(F)CN QSEZFOAWAVHOBH-UHFFFAOYSA-N 0.000 claims description 2
- HYTZHDBUDDPKNK-UHFFFAOYSA-N (4-amino-3-fluorobutan-2-yl)-methylphosphinic acid Chemical compound CP(=O)(O)C(C)C(F)CN HYTZHDBUDDPKNK-UHFFFAOYSA-N 0.000 claims description 2
- 206010011224 Cough Diseases 0.000 claims description 2
- 239000004480 active ingredient Substances 0.000 claims description 2
- 239000000969 carrier Substances 0.000 claims description 2
- 239000003085 diluting agent Substances 0.000 claims description 2
- 239000000546 pharmaceutical excipient Substances 0.000 claims description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims 1
- 125000004744 butyloxycarbonyl group Chemical group 0.000 claims 1
- -1 salt compounds Chemical class 0.000 description 17
- 239000000126 substance Substances 0.000 description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000000018 receptor agonist Substances 0.000 description 8
- 229940044601 receptor agonist Drugs 0.000 description 8
- 239000002552 dosage form Substances 0.000 description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- 125000003545 alkoxy group Chemical group 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 6
- 229910052736 halogen Inorganic materials 0.000 description 6
- 150000002367 halogens Chemical class 0.000 description 6
- 125000005309 thioalkoxy group Chemical group 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- BTCSSZJGUNDROE-UHFFFAOYSA-N gamma-aminobutyric acid Chemical compound NCCCC(O)=O BTCSSZJGUNDROE-UHFFFAOYSA-N 0.000 description 4
- 125000001072 heteroaryl group Chemical group 0.000 description 4
- 102000005962 receptors Human genes 0.000 description 4
- 108020003175 receptors Proteins 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 239000012296 anti-solvent Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 229960003692 gamma aminobutyric acid Drugs 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 230000037396 body weight Effects 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 150000001733 carboxylic acid esters Chemical class 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 230000027119 gastric acid secretion Effects 0.000 description 2
- ARSWIHOOXSOUMV-UHFFFAOYSA-N hydroxysulfanylformic acid Chemical compound OSC(O)=O ARSWIHOOXSOUMV-UHFFFAOYSA-N 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 229960004592 isopropanol Drugs 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- 125000004043 oxo group Chemical group O=* 0.000 description 2
- 125000003367 polycyclic group Chemical group 0.000 description 2
- 230000003389 potentiating effect Effects 0.000 description 2
- NHVRIDDXGZPJTJ-UHFFFAOYSA-N skf-97,541 Chemical compound CP(O)(=O)CCCN NHVRIDDXGZPJTJ-UHFFFAOYSA-N 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 description 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 1
- 125000000229 (C1-C4)alkoxy group Chemical group 0.000 description 1
- 0 *C(C(*)N*)C(*)P(*)(O)=O Chemical compound *C(C(*)N*)C(*)P(*)(O)=O 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 102000003688 G-Protein-Coupled Receptors Human genes 0.000 description 1
- 108090000045 G-Protein-Coupled Receptors Proteins 0.000 description 1
- 241000167880 Hirundinidae Species 0.000 description 1
- 206010021118 Hypotonia Diseases 0.000 description 1
- 208000008238 Muscle Spasticity Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- QSEZFOAWAVHOBH-BYPYZUCNSA-N [(2s)-3-amino-2-fluoropropyl]-methylphosphinic acid Chemical compound CP(O)(=O)C[C@@H](F)CN QSEZFOAWAVHOBH-BYPYZUCNSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000003434 antitussive agent Substances 0.000 description 1
- 229940124584 antitussives Drugs 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000004106 butoxy group Chemical group [*]OC([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 208000015114 central nervous system disease Diseases 0.000 description 1
- ZTHNRNOOZGJLRR-UHFFFAOYSA-N chembl112203 Chemical class NCCCP(O)=O ZTHNRNOOZGJLRR-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011461 current therapy Methods 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 206010016165 failure to thrive Diseases 0.000 description 1
- 230000030136 gastric emptying Effects 0.000 description 1
- 230000010243 gut motility Effects 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940035363 muscle relaxants Drugs 0.000 description 1
- 230000036640 muscle relaxation Effects 0.000 description 1
- 239000003158 myorelaxant agent Substances 0.000 description 1
- 125000006606 n-butoxy group Chemical group 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 239000002858 neurotransmitter agent Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000007911 parenteral administration Methods 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 210000001428 peripheral nervous system Anatomy 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000002325 prokinetic agent Substances 0.000 description 1
- 125000006413 ring segment Chemical group 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 208000018198 spasticity Diseases 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 208000016752 upper digestive tract disease Diseases 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/01—Sulfonic acids
- C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C309/33—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton of six-membered aromatic rings being part of condensed ring systems
- C07C309/34—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton of six-membered aromatic rings being part of condensed ring systems formed by two rings
- C07C309/35—Naphthalene sulfonic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/30—Phosphinic acids R2P(=O)(OH); Thiophosphinic acids, i.e. R2P(=X)(XH) (X = S, Se)
- C07F9/301—Acyclic saturated acids which can have further substituents on alkyl
Definitions
- the present invention is related to novel salt of compounds useful in therapy.
- the invention is also related to processes for the preparation of the salts, pharmaceutical compositions containing said therapeutically active compounds and the use of said salt compounds in therapy.
- Gastro-oesophageal reflux disease is the most prevalent upper gastrointestinal tract disease. Current therapy has aimed at reducing gastric acid secretion, or at reducing oesophageal acid exposure by enhancing oesophageal clearance, lower oesophageal sphincter tone and gastric emptying. The major mechanism behind reflux has earlier been considered to depend on a hypotonic lower oesophageal sphincter. However recent research (e.g. Holloway & Dent (1990) Gastroenterol. Clin. N. Amer. 19, pp.
- TLOSR transient lower oesophageal sphincter relaxations
- GABAj3-receptor agonists having the property to inhibit TLOSR are disclosed in WO 98/11885, Al. Recently, further GABAB-receptor agonists are shown to have property to inhibit TLOSR (WO 01/41473, Al).
- GABA (4-aminobutanoic acid) is an endogenous neurotransmitter in the central and peripheral nervous systems.
- Receptors for GABA have traditionally been divided into GABAA and GABAg receptor subtypes.
- GABA ⁇ receptors belong to the superfamily of G-protein coupled receptors.
- GABAg receptor agonists are being described as being of use in the treatment of CNS disorders, such as muscle relaxation in spinal spasticity, cardiovascular disorders, asthma, gut motility disorders such as irritable bowel syndrome (IBS) and as prokinetic and anti-tussive agents.
- GABAB receptor agonists have also been disclosed as useful in the treatment of emesis (WO 96/11680, A2) and, as mentioned above, in the inhibition of TLOSR (WO 98/11885, Al).
- EP 0356128, Bl describes the use of the specific compound (3-aminopropyl)- methylphosphinic acid, as a potent GABAB receptor agonist, in therapy.
- EP 0181833, Bl discloses substituted 3-aminopropylphosphinic acids, which are found to have very high affinities towards GABA B receptor sites.
- EP 0399949, Bl discloses derivatives of (3- aminopropyl)methylphosphinic acid which are described as potent GABA B receptor agonists. These compounds are stated to be useful as muscle relaxants.
- GABAB receptor agonists in form of salts are also proposed in EP 0356128, Bl, EP 0181833, Bl, and EP 0399949, Bl.
- the object of the present invention is to provide novel salt compounds of certain GABAB receptor agonists.
- the present invention provides a novel napsylate salt of compounds of the formula I, or a solvate of said salt, or the stereoisomers thereof,
- R l represents hydrogen, hydroxy, C1-C7 alkyl, Ci -C7 alkoxy or halogen
- R2 represents hydroxy, mercapto, halogen or an oxo group
- R 3 represents hydrogen or Ci -C7 alkyl (optionally substituted with hydroxy, mercapto, C ⁇ - C7 alkoxy, aryl or C1-C7 thioalkoxy);
- R4 represents hydrogen, C1-C7 alkyl (optionally substituted with aryl or heteroaryl), aryl or heteroaryl;
- R5 represents methyl, fmoromethyl, difluoromethyl or trifluoromethyl.
- the napsylate salts of the invention have improved substances characteristics in relation to hygroscopicity. Further, the salt compounds according to the invention have suitable properties for handling the substances during the preparation of a pharmaceutical dosage form and during storage of the substance or the said dosage form.
- the napsylate salt may be formed by an acid addition reaction of the parent substance, i.e. the phosphinic acid according to formula I, or a solvate thereof, and naphthalene-2- sulphonic acid, or an intermediate compound formed in the synthesis of the parent . substance, or a solvate thereof, and naphthalene-2-sulphonic acid.
- a further aspect of the invention is a napsylate salt of compounds of Formula I selected from anyone of (3-amino-2-fluoropropyl)(methyl)phosphinic acid, and, (2R)-(3-amino-2- fluoropropy ⁇ )(methyl)phosphinic acid, and, (2S)-(3-amino-2- fluoropropyl)(methyl)phosphinic acid, and, (3-amino-2-fluoro-l- methylpropyl)(methyl)phosphinic acid .
- alkyl group means, inter alia, C1-C4 alkyl, such as methyl, ethyl, n-propyl or n-butyl, also isopropyl, isobutyl, secondary butyl or tertiary butyl, but may also be a C5-C7 alkyl group such as a pentyl, hexyl or heptyl group.
- alkoxy group means, inter alia, C1-C 4 alkoxy, such as methoxy, ethoxy, n-propoxy or n-butoxy, also isopropoxy, isobutoxy, secondary butoxy or tertiary butoxy, but may also be a C5-C7 alkoxy group, such as a pentoxy, hexoxy or heptoxy group.
- thioalkoxy group means, inter alia, -C 4 thioalkoxy, such as thiomethoxy, thioethoxy, n-thiopropoxy, n-thiobutoxy, thioisopropoxy, thioisobutoxy, secondary thiobutoxy or tertiary thiobutoxy, but may also be a C5-C7 thioalkoxy group, such as a thiopentoxy, thiohexoxy or thioheptoxy group.
- Halogen as used herein is anyone of chlorine, fluorine, bromine or iodine.
- aryl means aromatic rings with 6-14 carbon atoms including both single rings and polycyclic compounds, such as phenyl, naphthyl, optionally substituted with one or more substituents such as C1-C7 alkyl, C1-C7 alkoxy, C1-C7 thioalkoxy, halogen, hydroxy, mercapto, carboxylic acid, carboxylic acid ester, carboxylic acid amide or nitrile.
- heteroaryl as used herein means aromatic rings with 5-14 atoms including both single rings and polycyclic compounds in which one or several of the ring atoms is either oxygen, nitrogen or sulphur.
- the heteroaryl is optionally substituted with one or more substituents such as C1-C7 alkyl, C1-C7 alkoxy, C1-C7 thioalkoxy, halogen, hydroxy, mercapto, carboxylic acid, carboxylic acid ester, carboxylic acid amide or nitrile.
- substituents such as C1-C7 alkyl, C1-C7 alkoxy, C1-C7 thioalkoxy, halogen, hydroxy, mercapto, carboxylic acid, carboxylic acid ester, carboxylic acid amide or nitrile.
- halogen can be anyone of chlorine, fluorine, bromine or iodine.
- the compounds according to formula I can be in the form of a stereoisomeric mixture, i.e. a mixture of diastereomers and/or racemates, or in the form of the single stereoisomers, i.e. the single enantiomer and/or diastereomer.
- the napsylate salt of formula I above, or a solvate, or a stereoisomer thereof, have a surprisingly high chemical and physical stability during handling the substance, as well as formulating into a pharmaceutical dosage form and during storage of the prepared dosage form.
- the hydrolytic instability due to adsorbed free moisture is improved. If the active compound which deliqueses at a low relative humidity, the handling and processing of the compound is made difficult. Therefore, further object of the invention is an aim to reduce the tendency of the compound of deliquesce.
- a hygroscopic substance shows an increase in mass which is less than 15 % m/m (mass of water/ mass of drug) and equal to or greater than 2 % m/m during a period of 24 hours at 25 °C and 80 % RH.
- the increase in mass is equal or greater than 15 % m/m.
- napsylate salts according to the invention have advantageous properties regarding the processing and handling of the active compound.
- the hygroscopic properties are improved, the napsylate salt does not deliquesce at as low relative humidity (RH) as the parent compound.
- the relative humidity, RH, of a gas is defined as % RH being equal to lOOx (p)/(ps) wherein (p) is the partial pressure of the water vapor present in the gas mixture and (ps) is the saturation pressure, or the partial pressure of water vapor above pure water at the temperature of the gas.
- One aspect of the invention is the process for producing a salt compound according to formula I above.
- One aspect of the invention is the use of a salt compound according to formula I above, for the manufacture of a medicament for the treatment of anyone of the diseases mentioned above.
- One aspect of the invention is the pharmaceutical preparation comprising the pharmaceutically acceptable salt compound according to formula I above.
- One aspect of the invention is the method for treatment of anyone of the diseases mentioned above with a pharmaceutical preparation comprising a salt compound according to formula I above.
- Preparation of the napsylate salt of compounds of formula I or solvate thereof can be performed from the parent substance, i.e. the phosphinic acid according to formula I.
- the first step in the formation of the napsylate salt of the parent substances in formula I, or a solvate thereof is the addition of a solvent, such as methanol, to the parent substance, which then is let to reflux.
- a solvent such as methanol
- a suitable amount of the naphthalene-2-sulphonic acid is added and the acid addition reaction is started.
- the mixture is cooled and the napsylate is crystallised by addition of an antisolvent, such as n-butyl acetate, which lower the solubility of the napsylate salt and further cooling of the mixture follows. Crystals of the napsylate salt are isolated by filtration and following wash.
- the crude product is recrystallised by dissolving it in a solvent such as methanol followed by an addition of an antisolvent, such as isopropylalcohol.
- a solvent such as methanol
- an antisolvent such as isopropylalcohol.
- the solution is then cooled and a slurry is formed which is further cooled.
- the crystalline napsylate salt of formula I is isolated by filtering, washed with a suitable solvent and finally dried.
- Preparation of the napsylate salt of formula I, or solvate thereof can also be performed from an intermediate compound formed in the synthesis of the parent compound.
- the formation of the present napsylate salt may start from an ammonium of a compound of formula II, or a solvate or a stereoisomer thereof,
- Ri represents hydrogen or a Ci -C7 alkyl
- R 2 represents fluoro
- R 3 represents hydrogen
- R5 represents methyl, fluoromethyl, difluoromethyl or trifluoromethyl
- Z represent a protecting group.
- the synthesis starts with a neutralisation of the intermediate with sulphuric acid, the corresponding phosphinic acid is obtained.
- Ammonium salt is formed and is filtered off.
- Naphthalene-2-sulphonic acid is added and the reaction is held for completion, i.e. the phosphinic acid of formula II is deprotected by reaction with the added naphthalene-2- sulphonic acid which also form the napsylate salt of formula I.
- the solvent is evaporated off and a crude product is obtained.
- the crude product is recrystallised with suitable solvent and antisolvent, for example, methanol and isopropyl alcohol, respectively.
- the intermediate compound of Formula II is substituted with a suitable protecting group such as carbamates or other N-protecting groups, which are deprotected under acidic conditions.
- a suitable protecting group such as carbamates or other N-protecting groups, which are deprotected under acidic conditions.
- suitable protecting groups see Protective groups in organic synthesis, Theodora W. Greene, 1999, 3 rd edition, page 218-287 and page 323-334.
- compositions in another aspect, provides formulated pharmaceutical formulations comprising as active ingredient a therapeutically effective amount of a pharmaceutically acceptable napsylate salt of compounds of formula. I as an enantiomer or a racemate, or a combination of such salts and/or solvates, optionally in association with diluents, excipients or carriers.
- the compounds of the invention will normally be administered orally, rectally or parenterally, in the form of a pharmaceutically acceptable non-toxic salt or as a solvate of such salt in a pharmaceutically acceptable dosage form.
- the dosage form may be a solid, semisolid or liquid preparation.
- the active substance will constitute between 0.1 and 99 % by weight of the preparation, more specifically between 0.5 and 20 % by weight for preparations intended for injection and between 0.2 and 80 % by weight for preparations suitable for oral administration.
- compositions comprising the compound of the invention are manufactured by pharmaceutical conventional techniques.
- Suitable daily doses of the compound of the invention in therapeutical treatment of humans are about 0.001 - 100 mg/kg body weight for parenteral administrations and about 0.01 - 100 mg/kg bodyweight for other administration routes.
- the salts of the compound according to the invention can be used for the inhibition of TLOSR, and thus for the treatment of gastro-oesophageal reflux diseases
- the said inhibition of TLOSR also implies that the said compounds can be used for the treatment of regurgitation in infants. Effective management of regurgitation in infants would be an important way of managing failure to thrive due to excessive loss of ingested nutrient.
- the novel compounds can be used for the treatment of GORD-related or non- GORD related asthma, belching, coughing, pain, cocaine addition, hiccups, IBS, dyspepsia, emesis and nociception.
- novel napsylte salts according to the invention are useful in therapy.
- a further aspect of the invention is the use of a napsylate salt according to the invention for the manufacturing of any one of the indications mentioned above.
- a further aspect of the invention is the method for treatment of the indications mentioned above by administering to a subject suffering from said conditions a pharmaceutical preparation comprising the napsylate salt according to the invention.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0102058A SE0102058D0 (en) | 2001-06-08 | 2001-06-08 | New Salts II |
SE0102058-5 | 2001-06-08 |
Publications (1)
Publication Number | Publication Date |
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WO2002100870A1 true WO2002100870A1 (en) | 2002-12-19 |
Family
ID=20284433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2002/001084 WO2002100870A1 (en) | 2001-06-08 | 2002-06-04 | New napsylate salts ii |
Country Status (2)
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SE (1) | SE0102058D0 (en) |
WO (1) | WO2002100870A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006050472A2 (en) * | 2004-11-03 | 2006-05-11 | Xenoport, Inc. | Acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous and -phosphinic acids |
WO2006071185A1 (en) * | 2004-12-27 | 2006-07-06 | Astrazeneca Ab | New use of gabab receptor agonists |
WO2006071186A1 (en) * | 2004-12-27 | 2006-07-06 | Astrazeneca Ab | Use of gabab receptor agonists |
US7566738B2 (en) | 2004-11-03 | 2009-07-28 | Xenoport, Inc. | Acyloxyalkyl carbamate prodrugs of sulfinic acids, methods of synthesis, and use |
US7585996B2 (en) | 2006-09-15 | 2009-09-08 | Xenoport, Inc. | Acyloxyalkyl carbamate prodrugs, methods of synthesis and use |
WO2012009646A1 (en) | 2010-07-15 | 2012-01-19 | Xenoport, Inc. | Methods of treating fragile x syndrome, down's syndrome, autism and related disorders |
US11905286B2 (en) | 2018-08-09 | 2024-02-20 | Antabio Sas | Diazabicyclooctanones as inhibitors of serine beta-lactamases |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998011885A1 (en) * | 1996-09-18 | 1998-03-26 | Astra Aktiebolag | Reflux inhibitors |
-
2001
- 2001-06-08 SE SE0102058A patent/SE0102058D0/en unknown
-
2002
- 2002-06-04 WO PCT/SE2002/001084 patent/WO2002100870A1/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998011885A1 (en) * | 1996-09-18 | 1998-03-26 | Astra Aktiebolag | Reflux inhibitors |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006050472A2 (en) * | 2004-11-03 | 2006-05-11 | Xenoport, Inc. | Acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous and -phosphinic acids |
WO2006050472A3 (en) * | 2004-11-03 | 2006-08-03 | Xenoport Inc | Acyloxyalkyl carbamate prodrugs of 3-aminopropylphosphonous and -phosphinic acids |
US7494985B2 (en) | 2004-11-03 | 2009-02-24 | Xenoport, Inc. | Acyloxyalkyl carbamate prodrugs, methods of synthesis, and use |
US7566738B2 (en) | 2004-11-03 | 2009-07-28 | Xenoport, Inc. | Acyloxyalkyl carbamate prodrugs of sulfinic acids, methods of synthesis, and use |
US7935686B2 (en) | 2004-11-03 | 2011-05-03 | Xenoport, Inc. | Acyloxyalkyl carbamate prodrugs, methods of synthesis, and use |
WO2006071185A1 (en) * | 2004-12-27 | 2006-07-06 | Astrazeneca Ab | New use of gabab receptor agonists |
WO2006071186A1 (en) * | 2004-12-27 | 2006-07-06 | Astrazeneca Ab | Use of gabab receptor agonists |
US7585996B2 (en) | 2006-09-15 | 2009-09-08 | Xenoport, Inc. | Acyloxyalkyl carbamate prodrugs, methods of synthesis and use |
US7749985B2 (en) | 2006-09-15 | 2010-07-06 | Xenoport, Inc. | Acyloxyalkyl carbamate prodrugs, methods of synthesis and use |
WO2012009646A1 (en) | 2010-07-15 | 2012-01-19 | Xenoport, Inc. | Methods of treating fragile x syndrome, down's syndrome, autism and related disorders |
US11905286B2 (en) | 2018-08-09 | 2024-02-20 | Antabio Sas | Diazabicyclooctanones as inhibitors of serine beta-lactamases |
Also Published As
Publication number | Publication date |
---|---|
SE0102058D0 (en) | 2001-06-08 |
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