P2X4 receptor antagonist

Patent metadata

Field	Value
Publication number	US-9382236-B2
Application number	US-201314371868-A
Country	US
Kind code	B2
Filing date	Jan 10, 2013
Priority date	Jan 13, 2012
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

The present invention relates to a diazepine derivative represented by the following general formula (I) (in the formula, R 1 and R 2 represent hydrogen atom and the like, or R 1 and R 2 bind together to form a naphthalene ring and the like together with the benzene ring to which they bind, R 3 and R 4 represent hydrogen atom and the like, R 5 represents hydrogen atom and the like, R 6 and R 7 represent hydrogen atom and the like, X represents C, CH or N, Y represents N, NH or C(═O), provided that when X is N, Y is not N or NH, and when X is C or CH, Y is not C(═O), Z represents oxygen atom or sulfur atom, A represents benzene ring and the like, B represents NHC(═O) and the like, D represents an atomic bond and the like, E represents an atomic bond and the like, G represents benzene which may be substituted and the like, and m represents an integer of 0 to 5) or a pharmacologically acceptable salt thereof, and a P2X4 receptor antagonist.

First claim

The invention claimed is:

1. A compound represented by the following formula (I), or a pharmacologically acceptable salt thereof:

wherein, R 1 and R 2 may be the same or different, and represent hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 3 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, an alkoxy group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, a halogen atom, hydroxyl group, nitro group, cyano group, amino group, an alkylamino group having 1 to 8 carbon atoms, a dialkylamino group having 2 to 8 carbon atoms, a carboxamido group having 2 to 8 carbon atoms, carboxyl group, an alkanoyl group having 2 to 8 carbon atoms, an alkoxycarbonyl group which has 1 to 8 carbon atoms in the alkoxy moiety, a phenyl group which may be substituted, a pyridyl group which may be substituted, or an aralkyl group which has 6 to 10 carbon atoms in the aryl moiety and 1 to 8 carbon atoms in the alkylene moiety, wherein the phenyl group and the pyridyl group may be substituted with a halogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, or an alkoxy group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms,
or
R 1 and R 2 may bind together to form a condensed ring selected from naphthalene ring, quinoline ring, isoquinoline ring, tetrahydronaphthalene ring, indane ring, tetrahydroquinoline ring, and tetrahydroisoquinoline ring together with the benzene ring to which they bind, and the ring constituted by R 1 and R 2 , bound to each other, together with the carbon atoms to which R 1 and R 2 bind may be substituted with 1 to 4 of the same or different substituents selected from an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 3 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, an alkoxy group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, a halogen atom, hydroxyl group, nitro group, cyano group, amino group, an alkylamino group having 1 to 8 carbon atoms, a dialkylamino group having 2 to 8 carbon atoms, a carboxamido group having 2 to 8 carbon atoms, carboxyl group, an alkanoyl group having 2 to 8 carbon atoms, an alkoxycarbonyl group which has 1 to 8 carbon atoms in the alkoxy moiety, and an aralkyl group which has 6 to 10 carbon atoms in the aryl moiety and 1 to 8 carbon atoms in the alkylene moiety,
R 3 and R 4 may be the same or different, and represent hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, an alkoxy group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, a halogen atom, hydroxyl group, nitro group, cyano group, amino group, an alkylamino group having 1 to 8 carbon atoms, a dialkylamino group having 2 to 8 carbon atoms, an carboxamido group having 2 to 8 carbon atoms, carboxyl group, an alkanoyl group having 2 to 8 carbon atoms, an alkoxycarbonyl group which has 1 to 8 carbon atoms in the alkoxy moiety, or an aralkyl group which has 6 to 10 carbon atoms in the aryl moiety and 1 to 8 carbon atoms in the alkylene moiety,
R 5 represents hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, an alkyl group having 1 to 8 carbon atoms and substituted with hydroxyl group, or an aralkyl group which has 6 to 10 carbon atoms in the aryl moiety and 1 to 8 carbon atoms in the alkylene moiety,
R 6 and R 7 may be the same or different, and represent hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, an alkoxy group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, a halogen atom, hydroxyl group, or amino group,
X represents N,
Y represents C(═O),
the double line consisting of the solid line and the broken line represents a single bond,
Z represents oxygen atom,
A represents benzene ring, which may have 1 to 4 of the same or different substituents selected from an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, an alkoxy group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, a halogen atom, hydroxyl group, nitro group, cyano group, amino group, an alkylamino group having 1 to 8 carbon atoms, a dialkylamino group having 2 to 8 carbon atoms, an aralkyl group which has 6 to 10 carbon atoms in the aryl moiety and 1 to 8 carbon atoms in the alkylene moiety, phenyl group, or pyridyl group,
B represents N(R 8 )C(═O),
wherein R 8 represents hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, an alkyl group having 1 to 8 carbon atoms and substituted with hydroxyl group, or an aralkyl group which has 6 to 10 carbon atoms in the aryl moiety and 1 to 8 carbon atoms in the alkylene moiety,
D and E represents atomic bond,
G represents piperazine, piperidine, morpholine, cyclohexane, benzene, naphthalene, quinoline, quinoxaline, benzimidazole, thiophene, imidazole, thiazole, oxazole, indole, benzofuran, pyrrole, pyridine, or pyrimidine, which may have 1 to 4 of the same or different substituents selected from an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, an alkoxy group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, a halogen atom, hydroxyl group, nitro group, cyano group, amino group, an alkylamino group having 1 to 8 carbon atoms, a dialkylamino group having 2 to 8 carbon atoms, an alkanoyl group having 2 to 8 carbon atoms, methylenedioxy group, carboxyl group, an alkylsulfinyl group having 1 to 6 carbon atoms, an alkylthio group having 1 to 6 carbon atoms, an alkylsulfonyl group having 1 to 6 carbon atoms, an aralkyl group which has 6 to 10 carbon atoms in the aryl moiety and 1 to 8 carbon atoms in the alkylene moiety, a phenyl group which may be substituted, a pyridyl group which may be substituted, an imidazolyl group which may be substituted, an oxazolyl group which may be substituted, and a thiazolyl group which may be substituted, wherein the substituents on the phenyl group, the pyridyl group, the imidazolyl group, the oxazolyl group, and the thiazolyl group are chosen from a halogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, or an alkoxy group having 1 to 8 carbon atoms and substituted with 1 to 3 halogen atoms, and
m represents an integer of 0.

2. The compound according to claim 1 or a pharmacologically acceptable salt thereof, wherein R 1 and R 2 may be the same or different, and are hydrogen atom, an alkyl g

Assignees

• Nippon Chemiphar Co
• Nippon Chemiphar Co

Inventors

• Ushioda Masatoshi
• Kobayashi Kunio
• Saito Daisuke
• Sakuma Shogo
• Imai Toshiyasu
• Inoue Kazuhide

Classifications

• A61P43/00

  Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00 · CPC title

• A61P25/04

  Centrally acting analgesics, e.g. opioids · CPC title

• A61P29/00

  Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID] · CPC title

• C07D409/12 Primary

  linked by a chain containing hetero atoms as chain links · CPC title

• C07D403/12

  linked by a chain containing hetero atoms as chain links · CPC title