申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0099692A1
公开(公告)日:1984-02-01
The present invention provides compounds of the formula:-
wherein A is a lower alkylene group; R' is a carboxy, hydroxy, protected hydroxy, lower alkoxycarbonyl, lower alkoxycarbonylamino or lower alkanoyloxy group; R2 is a hydrogen or halogen atom or a halo (lower) - alkyl group; R3 is a hydrogen or halogen atom; R4 is a hydrogen atom or a hydroxy, carboxy, lower alkoxy, lower alkanoyloxy or lower alkoxycarbonyloxy group and R5 is a hydrogen or halogen atom or R4 and R5 together represent the group =CH2; F is the number of double bonds which is equal to 0 or 1 and n is an integer of 0 or 1, with the proviso that when F is 0 then n is 1 and when F is 1 then n is 0; and the pharmaceutically- acceptable salts thereof.
The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them. Futhermore, the present invention is concerned with the use of these compounds for the treatment of diabetic cataract and/or neuropathy.
本发明提供式如下的化合物
其中 A 是低级亚烷基;R'是羧基、羟基、保护羟基、低级烷氧基羰基、低级烷氧基羰基氨基或低级烷酰氧基;R2 是氢原子或卤素原子或卤代(低级)-烷基;R3 是氢原子或卤素原子;R4是氢原子或羟基、羧基、低级烷氧基、低级烷酰氧基或低级烷氧基羰基,R5是氢原子或卤素原子或R4和R5共同代表基团=CH2;F是双键的数目,等于0或1,n是0或1的整数,但当F为0时,n为1,当F为1时,n为0;及其药学上可接受的盐。
本发明还提供了制备这些化合物和含有这些化合物的药物组合物的工艺。此外,本发明还涉及使用这些化合物治疗糖尿病性白内障和/或神经病变。