申请人:E. R. Squibb & Sons, Inc.
公开号:US03994889A1
公开(公告)日:1976-11-30
3-Heterothio(.alpha.-thiocarbonylamino)-7.alpha.-methoxycephalosporin derivatives of the general formula ##SPC1## Wherein R is hydrogen, lower alkyl, phenyl-lower alkyl, tri(lower alkyl)silyl, trihaloethyl, a salt forming ion or the group ##EQU1## R.sub.1 is hydrogen, lower alkyl, cyclo-lower alkyl, unsaturated cyclo-lower alkyl, phenyl, substituted phenyl or thienyl; R.sub.2 and R.sub.5 each is hydrogen or lower alkyl; R.sub.3 is a five or six membered nitrogen, sulfur and/or oxygen containing ring system, and R.sub.4 is lower alkyl, phenyl or phenyl-lower alkyl; are useful as antibacterial agents.
3-杂硫(.alpha.-硫代氨基)-7.alpha.-甲氧基头孢菌素衍生物的一般式为 ##SPC1## 其中R是氢、低碳基、苯基-低碳基、三(低碳基)硅基、三卤乙基、成盐离子或基团##EQU1## R.sub.1是氢、低碳基、环-低碳基、不饱和环-低碳基、苯基、取代苯基或噻吩基;R.sub.2和R.sub.5各自是氢或低碳基;R.sub.3是一个五元或六元的氮、硫和/或氧含有环系,而R.sub.4是低碳基、苯基或苯基-低碳基;这些衍生物是有用的抗菌剂。