3-Substituted vinyl cephalosporin derivatives
    3.
    发明公开
    3-Substituted vinyl cephalosporin derivatives 失效
    3-取代基乙烯基头孢菌素。

    公开(公告)号:EP0408034A1

    公开(公告)日:1991-01-16

    申请号:EP90113365.2

    申请日:1990-07-12

    申请人: Eisai Co., Ltd.

    CPC分类号: C07D501/00 Y02P20/55

    摘要: 3-Substituted vinyl cephalosporin derivatives represented by the following formula:
    wherein R 1 represents a hydroxyl or lower alkoxyl group, X represents a nitrogen atom or a group represented by the formula -CH =, R 2 represents a carboxyl group or a carboxyl group protected with a protecting group, and R 3 is as defined herein, and pharmaoeutically acceptable salts thereof are potent antibacterial agents. Processes for their preparation, intermediates in such processes, and antibacterial compositions containing them as active ingredients are also described.

    摘要翻译: 3-取代的由下式表示的乙烯基头孢菌素衍生物:其中R 1表示羟基或低级烷氧基,X表示氮原子或由式-CH =表示的基团,R 2表示 羧基或被保护基保护的羧基,R 3如本文所定义,其药学上可接受的盐是有效的抗菌剂。 还描述了其制备方法,这些方法中的中间体和含有它们作为活性成分的抗菌组合物。