Process to obtain 6-O-methylerythromycin a (clarithromycin)_form II
    1.
    发明申请
    Process to obtain 6-O-methylerythromycin a (clarithromycin)_form II 审中-公开
    获得6-O-甲基红霉素a(克拉霉素)的方法II

    公开(公告)号:US20060247427A1

    公开(公告)日:2006-11-02

    申请号:US11491735

    申请日:2006-07-24

    IPC分类号: C07H17/08

    CPC分类号: C07H17/08

    摘要: The present invention provides a process for the preparation of 6-O-methylerythromycin A Form II comprising treating 6-O-methylerythromycin A with organic acid selected form trifluoroacetic acid, para-toluene sulphonic acid, oxalic acid or acetic acid and converting it into an organic salt of 6-O-methylerythromycin A, which can be neutralized by base to give 6-O-methylerythromycin A Form II.

    摘要翻译: 本发明提供了制备6-O-甲基红霉素A形式II的方法,包括用选自三氟乙酸,对甲苯磺酸,草酸或乙酸的有机酸处理6-O-甲基红霉素A,并将其转化为 6-O-甲基红霉素A的有机盐,可通过碱中和得到6-O-甲基红霉素A型II。