申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US05187160A1
公开(公告)日:1993-02-16
The invention relates to antimicrobial compounds of the formula: ##STR1## wherein R.sup.1 is amino or a protected amino, R.sup.2 is ethyl, propyl or lower alkenyl, R.sup.3 is COO .theta., carboxy or a protected carboxy, R.sup.4 is hydroxy(lower)alkyl or protected hydroxy(lower)alkyl, R.sup.5 is amino or a protected amino, X.sup..theta. is an anion, and n is 0 or 1, or, R.sup.1, R.sup.3, R.sup.5, X.sup..theta. and n are each as defined above, R.sup.2 is lower alkyl, and R.sup.4 is 3-hydroxypropyl, with proviso that (i) when R.sup.3 is COO.sup..theta., then n is 0, and (ii) when R.sup.3 is carboxy or a protected carboxy, then n is 1, or a pharmaceutically acceptable salt thereof.
该发明涉及一种抗菌化合物,其化学式为:##STR1## 其中R.sup.1是氨基或受保护的氨基,R.sup.2是乙基、丙基或较低烯烃基,R.sup.3是COO .theta.、羧基或受保护的羧基,R.sup.4是羟基(较低)烷基或受保护的羟基(较低)烷基,R.sup.5是氨基或受保护的氨基,X.sup..theta.是阴离子,n为0或1,或者R.sup.1、R.sup.3、R.sup.5、X.sup..theta.和n分别如上定义,R.sup.2为较低烷基,R.sup.4为3-羟基丙基,但需满足以下条件:(i)当R.sup.3为COO.sup..theta.时,n为0,(ii)当R.sup.3为羧基或受保护的羧基时,n为1,或其药用可接受盐。