申请人:Rhone-Poulenc Industries
公开号:US04307116A1
公开(公告)日:1981-12-22
Novel cephalosporins of the general formula (I); ##STR1## in which R is alkyl, L-2-amino-2-carboxy-ethyl, phenyl, pyridyl, pyridyl-N-oxide, pyrimidin-2-yl, substituted pyridazin-3-yl, 5,6-dioxo-1,4,5,6-tetrahydro-1,2,4-triazin-3-yl substituted in the 4-position, 1,3,4-triazol-5-yl or 2-alkoxycarbonyl-1,3,4-triazol-5-yl substituted in the 1-position, 1,4-dialkyl-5,6-dioxo-1,4,5,6-tetrahydro-1,2,4-triazin-3-yl, 1-alkyl-5,6-dioxo-1,4,5,6-tetrahydro-1,2,4-triazin-3-yl, 2-alkyl-5,6-dioxo-1,2,5,6-tetrahydro-1,2,4-triazin-3-yl, triazol-5-yl, 1,3,4-thiadiazol-5-yl which is substituted or unsubstituted, 1,2,4-thiadiazol-5-yl which is substituted, 1,3,4-oxadiazol-5-yl which is substituted or unsubstituted, oxazol-2-yl which is substituted or unsubstituted or tetrazol-5-yl which is substituted or unsubstituted in the 1-position, R' is a hydrogen atom or a radical of the general formula (II); ##STR2## and R.sup.o is hydrogen, alkyl, vinyl or cyanomethyl, as well as their salts, are useful as anti-bacterial agents.
通式(I)的新型头孢菌素;其中R为烷基,L-2-氨基-2-羧基乙基,苯基,吡啶基,吡啶-N-氧化物,嘧啶-2-基,取代的吡啶-3-基,4-位取代的5,6-二氧化-1,4,5,6-四氢-1,2,4-三嗪-3-基,1,3,4-三唑-5-基或1-位取代的2-烷氧羰基-1,3,4-三唑-5-基,1,4-二烷基-5,6-二氧化-1,4,5,6-四氢-1,2,4-三嗪-3-基,1-烷基-5,6-二氧化-1,4,5,6-四氢-1,2,4-三嗪-3-基,2-烷基-5,6-二氧化-1,2,5,6-四氢-1,2,4-三嗪-3-基,三唑-5-基,1,3,4-噻二唑-5-基,取代或未取代的1,2,4-噻二唑-5-基,取代或未取代的1,3,4-噁二唑-5-基,取代或未取代的噁唑-2-基或取代或未取代的1-位四唑-5-基,R'为氢原子或通式(II)的基团;其中R.sup.o为氢,烷基,乙烯基或氰甲基,以及它们的盐,可用作抗菌剂。