申请人:Ciba-Geigy Corporation
公开号:US04234578A1
公开(公告)日:1980-11-18
6.beta.-(R.sub.a)(R.sub.b)N-methylaryl-acetylamino-6.alpha.-methoxy-2,2-dim ethylpenam-3-carboxylic acid compounds and 7.beta.-(R.sub.a)(R.sub.b)N-methylaryl-acetylamino-7.alpha.-methoxy-3-ceph em-4-carboxylic acid compounds, wherein R.sub.a and R.sub.b independently of each other represent hydrogen or optionally substituted lower alkyl, or wherein R.sub.a and R.sub.b conjointly denote optionally substituted lower alkylene, wherein the aminomethyl-substituted aryl radical represents a corresponding thienyl, furyl or phenyl radical, and wherein the 3-position in 3-cephem compounds is unsubstituted or substituted by a modified hydroxyl group or an optionally substituted methyl group, exhibit antibiotic action against Gram-negative or Gram-positive micro-organisms.
6-β-(R.sub.a)(R.sub.b)N-甲基芳基-乙酰氨基-6-α-甲氧基-2,2-二甲基佩纳姆-3-羧酸化合物和7-β-(R.sub.a)(R.sub.b)N-甲基芳基-乙酰氨基-7-α-甲氧基-3-头孢烯-4-羧酸化合物,其中R.sub.a和R.sub.b分别表示氢或可选择取代的较低烷基,或者R.sub.a和R.sub.b共同表示可选择取代的较低烷基,其中氨基甲基取代的芳基基团表示相应的噻吩基、呋喃基或苯基基团,3-头孢烯化合物中的3位位置未取代或被修改的羟基团或可选择取代的甲基团取代,对革兰氏阴性或革兰氏阳性微生物具有抗生素作用。