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    • 9. 发明授权
    • 3-Heterothio-7-ureido cephalosporins
    • 3-异硫脲-7-脲基头孢菌素
    • US4088815A
    • 1978-05-09
    • US664795
    • 1976-03-08
    • Hermann BreuerUwe D. Treuner
    • Hermann BreuerUwe D. Treuner
    • C07D213/55C07D333/24C07D501/36
    • C07D333/24C07D213/55
    • Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, lower alkyl, cycloalkyl, cycloalkenyl, cycloalkadienyl, phenyl, phenyl-lower alkyl and substituted phenyl and phenyl-lower alkyl; R.sub.2 is hydrogen or lower alkyl; R.sub.3 is hydrogen, lower alkyl, phenyl-lower alkyl, substituted phenyl-lower alkyl, diphenyl-lower alkyl, tri(lower alkyl)stannyl, tri(lower alkyl)silyl, a salt forming ion, or the group ##STR2## wherein R is lower alkyl, phenyl, phenyl-lower alkyl, or substituted phenyl and phenyl-lower alkyl; and R.sub.4 represents certain heterocyclic groups are disclosed. These compounds are useful as antibacterial agents.
    • 其中R 1是氢,低级烷基,环烷基,环烯基,环烷二烯基,苯基,苯基 - 低级烷基和取代的苯基和苯基 - 低级烷基; R2是氢或低级烷基; R3是氢,低级烷基,苯基 - 低级烷基,取代的苯基 - 低级烷基,二苯基 - 低级烷基,三(低级烷基)甲锡烷基,三(低级烷基)甲硅烷基,成盐离子或基团,其中R 是低级烷基,苯基,苯基 - 低级烷基或取代的苯基和苯基 - 低级烷基; 并且R4表示某些杂环基。 这些化合物可用作抗菌剂。