Cephalosporin derivative and pharmaceutical composition
    10.
    发明授权
    Cephalosporin derivative and pharmaceutical composition 失效
    头孢菌素衍生物和药物组合物

    公开(公告)号:US4581353A

    公开(公告)日:1986-04-08

    申请号:US628971

    申请日:1984-07-11

    CPC分类号: C07D277/587 Y02P20/55

    摘要: A cephalosporin derivative of the formula ##STR1## wherein R is a hydrogen atom, a lower alkyl group which may have been substituted or a carbamoyl group which may have been substituted; R.sub.1 is hydrogen atom or a methoxy group; R.sub.2 is a hydrogen atom, an acyloxy group, or a nitrogen-containing 5-membered heterocyclic thio group which may have been substituted; R.sub.3 is a free amino group or an amino group having a protective group; and R.sub.4 is a free carboxy group or a carboxy group having a protective group or the salts thereof.The compound of this invention has an excellent antibacterial activity against gram negative bacteria and gram positive bacteria.

    摘要翻译: 其中R为氢原子,可被取代的低级烷基或可被取代的氨基甲酰基的式IMAMA的头孢菌素衍生物; R1是氢原子或甲氧基; R2是氢原子,酰氧基或可以被取代的含氮5元杂环硫基; R3是游离氨基或具有保护基的氨基; R4为游离羧基或具有保护基的羧基或其盐。 本发明化合物对革兰氏阴性细菌和革兰氏阳性细菌具有优异的抗菌活性。