Process for obtaining cefotetan with high yield
    2.
    发明授权
    Process for obtaining cefotetan with high yield 失效
    以高产量获得头孢替坦的方法

    公开(公告)号:US07560545B2

    公开(公告)日:2009-07-14

    申请号:US11383075

    申请日:2006-05-12

    IPC分类号: C07D501/57 C07D501/12

    CPC分类号: C07D501/48

    摘要: The invention relates to a method for obtaining cefotetan acid substantially free of tautomer, by treating crude cefotetan with Al3+ ions which cause the tautomer to precipitate. The precipitate is eliminated by filtration to provide a solution from which practically tautomer-free cefotetan is obtained.

    摘要翻译: 本发明涉及通过用导致互变异构体沉淀的Al 3+离子处理粗头孢替坦来获得基本上不含互变异构体的头孢替坦的方法。 通过过滤除去沉淀物,得到几乎不含互变异构头孢替丹的溶液。