申请人:Takeda Chemical Industries, Ltd.
公开号:EP0333082A2
公开(公告)日:1989-09-20
This invention provides a cephem compound of the formula (I):
, wherein R¹ is an acyl group; R² is a carboxy group which may be esterified; R³ is hydrogen atom, a lower alkyl group or cyano group; R⁴ is hydrogen atom or a lower alkyl group ,or R⁴ together with R³ is a methylene chain having 2 or 3 carbon atoms; R⁵ is hydrogen atom or a lower alkyl group; A is an optionally substituted bivalent aromatic heterocyclic group which is bonded on the ring-constituting carbon atom with the adjacent sulfur atom; Y is a binding arm, sulfur or oxygen atom, -NH-, -CONH- or -NHCO-; Z is a binding arm or -NH-; m is an integer of 0 to 4 and n is an integer of 0 to 6, or a pharmacologically acceptable salt thereof, and a process for producing this compound.
本发明提供了一种式(I)的头孢菌素化合物:
其中 R¹ 是酰基;R² 是可酯化的羧基;R³ 是氢原子、低级烷基或氰基;R⁴ 是氢原子或低级烷基,或 R⁴ 与 R³ 一起是具有 2 或 3 个碳原子的亚甲基链;R⁵ 是氢原子或低级烷基;A是任选取代的二价芳香杂环基团,其在成环碳原子上与相邻的硫原子键合;Y是结合臂、硫原子或氧原子、-NH-、-CONH-或-NHCO-;Z是结合臂或-NH-;m是0至4的整数,n是0至6的整数,或其药理学上可接受的盐,以及生产该化合物的工艺。