Thiazole derivative and leukotriene antagonist containing the same as the effective ingredients
申请人:MITSUBISHI KASEI CORPORATION
公开号:EP0219436A2
公开(公告)日:1987-04-22
Disclosed are a thiazole derivative represented by the following formula, a pharmaceutically acceptable salt thereof and leukotriene antagonist containing the same as the active ingredients:
wherein R, and Rz each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a lower alkoxycarbonyl group or a substituted or unsubstituted phenyl group or cooperatively represent a tetramethylene group corresponding to a fused cyclohexane ring or a butadienylene group which is unsubstituted or substituted with a halogen atom, a lower alkoxy group, a lower alkoxycarbonyl group or an alkyl group having 1 to 3 carbon atoms corresponding to a fused benzene ring; R3, R4, R5 and R6 each independently represent a hydrogen atom, a hydroxyl group, a lower alkoxy group, an alkyl group having 1 to 3 carbon atoms or a halogen atom; A represents a linking group having 2 to 4 chain members; B represents a linking group having 2 to 5 chain members; and Q represents a carboxyl group, a lower alkoxy group, a hydroxyl group, an alkoxycarbonyl group having 2 to 6 carbon atoms or a 5-tetrazolyl group.
本发明公开了由下式代表的噻唑衍生物、其药学上可接受的盐和含有相同活性成分的白三烯拮抗剂:
其中 R 和 Rz 各自独立地代表氢原子、具有 1 至 8 个碳原子的烷基、低级烷氧基羰基或取代或未取代的苯基,或共同代表与融合环己烷环相对应的四亚甲基或未取代或被卤素原子取代的丁二烯基、低级烷氧基、低级烷氧基羰基或具有 1 至 3 个碳原子的与融合苯环相对应的烷基;R3、R4、R5 和 R6 各自独立地代表氢原子、羟基、低级烷氧基、具有 1 至 3 个碳原子的烷基或卤素原子;A 代表具有 2 至 4 个链成员的连接基团;B 代表具有 2 至 5 个链成员的连接基团;Q 代表羧基、低级烷氧基、羟基、具有 2 至 6 个碳原子的烷氧羰基或 5-四唑基。