申请人:E. R. Squibb & Sons, Inc.
公开号:US03996216A1
公开(公告)日:1976-12-07
3-Heterothio(formylamino)acetylamino cephalosporin derivatives of the general formula ##STR1## wherein R is hydrogen, lower alkyl, phenyl-lower alkyl, tri(lower alkyl)silyl, trihaloethyl, a salt forming ion or the group ##STR2## R.sub.1 is hydrogen, lower alkyl, cyclo-lower alkyl, unsaturated cyclo-lower alkyl, phenyl, substituted phenyl, furyl, pyridyl or thienyl; R.sub.2 is a five or six membered nitrogen, sulfur and/or oxygen containing heterocyclic ring system; R.sub.3 is lower alkyl, phenyl or phenyl-lower alkyl; and R.sub.4 is hydrogen or lower alkyl; are useful antibacterial agents.
3-杂硫(甲酰氨基)乙酰氨基头孢菌素衍生物的一般式##STR1##其中R为氢、较低烷基、苯基较低烷基、三(较低烷基)硅基、三卤乙基、盐形成离子或基团##STR2##R.sub.1为氢、较低烷基、环较低烷基、不饱和环较低烷基、苯基、取代苯基、呋喃基、吡啶基或噻吩基;R.sub.2为含有五元或六元氮、硫和/或氧的杂环戊环系;R.sub.3为较低烷基、苯基或苯基较低烷基;R.sub.4为氢或较低烷基;可用作抗菌剂。