申请人:DAINIPPON PHARMACEUTICAL CO., LTD.
公开号:EP0358903A2
公开(公告)日:1990-03-21
An indazole-3-carboxylic acid derivative represented by the following general formula (I) or its physiologically acceptable acid addition salt or quaternary ammonium salt,
wherein Y represents -NH- or -O-; R₁ and R₂ are identical or different and each represents a hydrogen atom, a lower alkyl group, a substituted lower alkyl group, a cycloalkyl group, a lower alkenyl group, a cycloalkenyl group, a lower alkynyl group, an unsubstituted or substituted aryl-lower alkyl group, a lower alkoxycarbonyl group, an unsubstituted or substituted aralkyloxycarbonyl group or an acyl group, or R₁ and R₂, taken together, form a lower alkylene group; R₃ represents a hydrogen atom, a lower alkyl group, or a phenyl group; R₄ represents a hydrogen atom, a lower alkyl group, a substituted lower alkyl group, a cycloalkyl group, a lower alkenyl group, a cycloalkenyl group, a lower alkynyl group, an unsubstituted or substituted aryl-lower alkyl group, a lower alkoxycarbonyl group, an unsubstituted or substituted aralkyloxycarbonyl group or an acyl group; R₅ represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a hydroxyl group, a trifluoromethyl group, a nitro group, an amino group or an acylamino group; m represents a number of 1, 2, 3 or 4; n represents a number of 1, 2 or 3; and p represents a number of 1, 2, 3 or 4.
This compound is useful as a potent and selective antagonist of serotonin 3 (5-HT₃) receptor.
由以下通式(I)代表的吲唑-3-羧酸衍生物或其生理上可接受的酸加成盐或季铵盐、
其中 Y 代表-NH-或-O-;R₁ 和 R₂ 相同或不同,各自代表氢原子、低级烷基、取代的低级烷基、环烷基、低级烯基、环烯基、低级炔基、未取代或取代的芳基-低级烷基、低级烷氧基羰基、未取代或取代的芳基氧基羰基或酰基,或 R₁ 和 R₂ 共同形成低级亚烷基;R₃ 代表氢原子、低级烷基或苯基;R₄ 代表氢原子、低级烷基、取代的低级烷基、环烷基、低级烯基、环烯 基、低级炔基、未取代或取代的芳基-低级烷基、低级烷氧基羰基、未取代或取代 的芳基氧基羰基或酰基;R₅ 代表氢原子、卤素原子、低级烷基、低级烷氧基、羟基、三氟甲基、硝基、氨基或酰氨基;m 代表 1、2、3 或 4;n 代表 1、2 或 3;p 代表 1、2、3 或 4。
该化合物是一种强效、选择性的 5-羟色胺 3(5-HT₃)受体拮抗剂。