申请人:E. R. Squibb & Sons, Inc.
公开号:US04113943A1
公开(公告)日:1978-09-12
7.beta.-[(2-Amino-1,2-dioxoethyl)amino]acyl cephalosporins of the formula ##STR1## wherein R is hydrogen, lower alkyl, phenyl-lower alkyl, diphenyl-lower alkyl, tri(lower alkyl)silyl, trihaloethyl or a salt forming ion; R.sub.1 is hydrogen, lower alkyl, saturated or unsaturated cycloalkyl, phenyl, phenyl-lower alkyl, substituted phenyl or certain heterocyclic groups; R.sub.2 is hydrogen or methoxy; R.sub.3 is hydrogen, lower alkyl or cycloalkyl; and X is hydrogen, lower alkanoyloxy, carbamoyloxy, lower alkoxy, lower alkylthio ##STR2## or certain heterothio groups, are useful as antibacterial agents.
7.beta.-[(2-氨基-1,2-二氧乙基)氨基]酰头孢菌素的化学式为##STR1##其中R为氢,低碳基,苯基-低碳基,二苯基-低碳基,三(低碳基)硅基,三卤乙基或形成离子的盐;R.sub.1为氢,低碳基,饱和或不饱和的环烷基,苯基,苯基-低碳基,取代苯基或某些杂环基团;R.sub.2为氢或甲氧基;R.sub.3为氢,低碳基或环烷基;X为氢,低碳酰氧基,氨基甲酰氧基,低碳基氧基,低碳基硫基##STR2##或某些杂硫基团,可用作抗菌剂。