Cephem compounds
    4.
    发明授权
    Cephem compounds 失效
    头孢烯化合物

    公开(公告)号:US4515788A

    公开(公告)日:1985-05-07

    申请号:US402256

    申请日:1982-07-27

    CPC分类号: C07D277/587

    摘要: This invention relates to novel compounds of high antimicrobial activity of the formula: ##STR1## wherein R.sup.1 is carboxy(lower)alkyl or protected carboxy(lower)alkyl,R.sup.2 is carboxy or protected carboxy,R.sup.3 is hydrogen or lower alkyl, andR.sup.4 is lower alkyl, lower alkoxy, acyloxymethyl, lower alkylthiomethyl, lower alkoxymethyl, halogen, lower alkenyl or hydrogen,and pharmaceutically acceptable salts thereof.

    摘要翻译: 本发明涉及具有下式的高抗微生物活性的新化合物:其中R 1是羧基(低级)烷基或保护的羧基(低级)烷基,R 2是羧基或保护的羧基,R 3是氢或低级烷基,R 4是 低级烷基,低级烷氧基,酰氧基甲基,低级烷硫基甲基,低级烷氧基甲基,卤素,低级烯基或氢,及其药学上可接受的盐。