申请人:E. R. Squibb & Sons, Inc.
公开号:US03971780A1
公开(公告)日:1976-07-27
Thio-.beta.-lactam cephalosporins of the general formula ##SPC1## Wherein R is hydrogen, lower alkyl, phenyl-lower alkyl, trihaloethyl, alkali metal or alkaline earth metal; R.sub.1 is hydrogen, lower alkyl, cycloalkyl, phenyl, phenoxy, phenyl-lower alkyl or certain heterocyclic groups; R.sub.2 is hydrogen, amino, carboxy, hydroxy or ureido; and X is hydrogen, hydroxy, lower alkylthio, lower alkylthiadiazolyl, lower alkyltetrazolyl or lower alkanoyloxy, are useful as antimicrobial agents.
巯基-β-内酰胺头孢菌素的一般化学式为##SPC1##其中R是氢、低碳基、苯基-低碳基、三卤乙基、碱金属或碱土金属;R.sub.1是氢、低碳基、环烷基、苯基、苯氧基、苯基-低碳基或某些杂环基团;R.sub.2是氢、氨基、羧基、羟基或脲基;X是氢、羟基、低碳硫基、低碳硫代唑基、低碳四氮唑基或低碳酰氧基,可用作抗菌剂。