Process for the purification of a 3-cephem-4-carboxylic acid derivative
    91.
    发明授权
    Process for the purification of a 3-cephem-4-carboxylic acid derivative 失效
    纯化3-头孢烯-4-羧酸衍生物的方法

    公开(公告)号:US5869648A

    公开(公告)日:1999-02-09

    申请号:US466306

    申请日:1995-06-06

    CPC分类号: C07D501/00

    摘要: The invention relates to a new process for the depletion of 7-amino-3-�(E)-1-propen-1-yl!-3-cephem-4-carboxylic acid in mixtures of 7-amino-3-�(Z)-1-propen-1-yl!-3-cephem-4-carboxylic acid and 7-amino-3-�(E)-1-propen-1-yl!-3-cephem-4 carboxylic acid, by means of the crystalline hydrochloride or a metal or amine salt of 7-amino-3-�(Z/E)-1-propen-1-yl!-3-cephem-4-carboxylic acid or by adsorption chromatography.

    摘要翻译: 本发明涉及在7-氨基-3 - [(E)-1-丙烯-1-基] -3-头孢烯-4-羧酸的7-氨基-3 - [( Z)-1-丙烯-1-基] -3-头孢烯-4-羧酸和7-氨基-3 - [(E)-1-丙烯-1-基] -3-头孢烯-4-羧酸 结晶盐酸盐或7-氨基-3 - [(Z / E)-1-丙烯-1-基] -3-头孢烯-4-羧酸的金属或胺盐的方法或通过吸附色谱法。