申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04487767A1
公开(公告)日:1984-12-11
Bacteriostatic cephem compounds and processes for preparing same having the formula: ##STR1## wherein R.sup.1 is amino or protected amino, R.sup.2 is lower alkyl, amino(lower)alkyl, protected amino(lower)alkyl, hydroxy(lower)alkyl, protected hydroxy(lower)alkyl, lower alkylthio(lower)alkyl, carboxy(lower)alkyl, esterified carbony(lower)alkyl, (C.sub.3 -C.sub.8)cycloalkyl, lower alkenyl or lower alkynyl, R.sup.3 is a heterocyclic group substituted with amino(lower)alkyl, protected amino(lower)alkyl, hydroxy(lower)alkyl or both amino and lower alkyl, R.sup.4 is carboxy or protected carboxy, provided that R.sup.3 is a heterocyclic group substituted with hydroxy(lower)alkyl or both amino and lower alkyl, when R.sup.2 is lower alkyl, and its pharmaceutically acceptable salt.
具有以下结构式的抑菌头孢烯类化合物和制备方法:##STR1##
其中,R.sup.1是氨基或受保护的氨基,R.sup.2是较低的烷基,氨基(较低)烷基,受保护的氨基(较低)烷基,羟基(较低)烷基,受保护的羟基(较低)烷基,较低烷基硫(较低)烷基,羧基(较低)烷基,酯化的羰基(较低)烷基,(C.sub.3-C.sub.8)环烷基,较低烯基或较低炔基,R.sup.3是带有氨基(较低)烷基,受保护的氨基(较低)烷基,羟基(较低)烷基或氨基和较低烷基的取代的杂环基,R.sup.4是羧基或受保护的羧基,但当R.sup.3是带有羟基(较低)烷基或氨基和较低烷基的取代的杂环基时,R.sup.2是较低烷基,以及其药学上可接受的盐。