Process for the preparation of fluorotetraene
    2.
    发明授权
    Process for the preparation of fluorotetraene 有权
    氟代四烯的制备方法

    公开(公告)号:US08049021B2

    公开(公告)日:2011-11-01

    申请号:US12052852

    申请日:2008-03-21

    IPC分类号: C07J5/00

    CPC分类号: C07J5/00

    摘要: There is provided a process for preparing 21-acetyloxy-6-alpha-fluoro-pregna-1,4,9(11),16-tetraene-3,20-dione compound of Formula I, which comprises reacting 21-acetyloxy-pregna-1,3,5,9(11),16-pentaene-3-oxo acetate with a fluorinating agent.

    摘要翻译: 提供了制备式I的21-乙酰氧基-6-α-氟 - 前 - 1,4,9(11),16-四烯-3,20-二酮化合物的方法,该方法包括使21-乙酰氧基 - 前 - -1,3,5,9(11),16-戊烯-3-氧代乙酸酯与氟化剂。

    PROCESS FOR THE PREPARATION OF FLUOROTETRAENE
    8.
    发明申请
    PROCESS FOR THE PREPARATION OF FLUOROTETRAENE 有权
    制备荧光素的方法

    公开(公告)号:US20080234506A1

    公开(公告)日:2008-09-25

    申请号:US12052852

    申请日:2008-03-21

    IPC分类号: C07J5/00

    CPC分类号: C07J5/00

    摘要: There is provided a process for preparing 21-acetyloxy-6-alpha-fluoro-pregna-1,4,9(11),16-tetraene-3,20-dione compound of Formula I, which comprises reacting 21-acetyloxy-pregna-1,3,5,9(11),16-pentaene-3-oxo acetate with a fluorinating agent.

    摘要翻译: 提供了制备式I的21-乙酰氧基-6-α-氟 - 前 - 1,4,9(11),16-四烯-3,20-二酮化合物的方法,该方法包括使21-乙酰氧基 - 前 - -1,3,5,9(11),16-戊烯-3-氧代乙酸酯与氟化剂。