申请人:E. R. Squibb & Sons, Inc.
公开号:US04099001A1
公开(公告)日:1978-07-04
[[[Imidazolidinyl amino]carbonyl]amino]acetylcephalosporin derivatives having the formula ##STR1## wherein R is hydrogen, lower alkyl, phenyl-lower alkyl, diphenyl-lower alkyl, tri(lower alkyl)silyl, trihaloethyl, a salt forming ion, or the group ##STR2## R.sub.1 is hydrogen or methoxy; R.sub.2, R.sub.3 and R.sub.5 each is hydrogen or lower alkyl; R.sub.4 is hydrogen, lower alkyl, cyclo-lower alkyl, cyclo-lower alkenyl, cyclo-lower alkadienyl, phenyl, phenyl-lower alkyl, substituted phenyl, substituted phenyl-lower alkyl, or certain heterocyclic groups; R.sub.6 is lower alkyl; and X is hydrogen, lower alkanoyloxy, ##STR3## or certain heterothio groups; are useful as antibacterial agents.
咪唑啉基氨基羰基氨基乙酰头孢菌素衍生物具有以下结构式##STR1##其中R为氢、低烷基、苯基-低烷基、二苯基-低烷基、三(低烷基)硅基、三卤乙基、形成盐离子的基团或##STR2##R.sub.1为氢或甲氧基;R.sub.2、R.sub.3和R.sub.5各自为氢或低烷基;R.sub.4为氢、低烷基、环-低烷基、环-低烯基、环-低烷二烯基、苯基、苯基-低烷基、取代苯基、取代苯基-低烷基或某些杂环基团;R.sub.6为低烷基;X为氢、低烷酰氧基、##STR3##或某些杂硫基团;可用作抗菌剂。