申请人:E. R. Squibb & Sons, Inc.
公开号:US04110535A1
公开(公告)日:1978-08-29
Ureido cephalosporin derivatives of 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, lower alkyl, cycloalkyl, cycloalkenyl, cycloalkadienyl, phenyl, phenyl-lower alkyl, substituted phenyl or phenyl-lower alkyl, or certain heterocyclic groups; R.sub.2 is hydrogen or lower alkyl; R.sub.3 is hydrogen or methoxy; R.sub.4 is hydrogen, halogen, lower alkyl, or lower alkoxy; R.sub.5 is hydrogen or lower alkyl; R.sub.6 is lower alkyl, phenyl, or phenyl-lower alkyl; are disclosed. These compounds are useful as antibacterial agents.
本发明公开了一种尿素头孢菌素衍生物,其化学式为##STR1## 其中R为氢,较低的烷基,苯基-较低的烷基,二苯基-较低的烷基,三(较低的烷基)硅基,三卤乙基,形成盐离子或基团##STR2## R.sub.1为氢,较低的烷基,环烷基,环烯基,环烯二烯基,苯基,苯基-较低的烷基,取代苯基或苯基-较低的烷基,或某些杂环基团; R.sub.2为氢或较低的烷基; R.sub.3为氢或甲氧基; R.sub.4为氢,卤素,较低的烷基或较低的烷氧基; R.sub.5为氢或较低的烷基; R.sub.6为较低的烷基,苯基或苯基-较低的烷基。这些化合物可用作抗菌剂。