申请人:E. R. Squibb & Sons, Inc.
公开号:US04038271A1
公开(公告)日:1977-07-26
[[[(2,4-Dioxo-1-imidazolidinyl)amino]carbonyl]amino]-acetylpenicillin derivatives of the formula ##STR1## wherein R is hydrogen, lower alkyl, phenyl-lower alkyl, tri(lower alkyl)silyl, 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 are independently selected from hydrogen and lower alkyl; R.sub.4 is hydrogen, lower alkyl, cycloalkyl, cycloalkenyl, cycloalkadienyl, phenyl, phenyl-lower alkyl, substituted phenyl, substituted phenyl-lower alkyl, or certain heterocyclic groups; R.sub.6 is lower alkyl; are disclosed. These compounds are useful as antibacterial agents.
公式如下:##STR1##其中,R为氢、低碳基、苯基-低碳基、三(低碳基)硅基、盐离子形成基团,或基团##STR2##R1为氢或甲氧基;R2、R3和R5各自独立地选自氢和低碳基;R4为氢、低碳基、环烷基、环烯基、环烷二烯基、苯基、苯基-低碳基、取代苯基、取代苯基-低碳基,或某些杂环基团;R6为低碳基。这些化合物可用作抗菌剂。