Hemisynthetic Method and New Compounds
    10.
    发明申请
    Hemisynthetic Method and New Compounds 有权
    半合成方法和新化合物

    公开(公告)号:US20080045713A1

    公开(公告)日:2008-02-21

    申请号:US11774890

    申请日:2007-07-09

    IPC分类号: C07D471/08 C07D491/147

    摘要: Methods are provided for preparing a compound with a fused ring structure of formula (XIV) which comprises one or more reactions starting from a 21-cyano compound of formula (XVI) where typically; R1 is an amidomethylene group or an aryloxymethylene group; R5 and R8 are independently chosen from —H, —OH or —OCOCH2OH, or R5 and R8 are both keto and the ring A is a p-benzoquinone ring; R14a and R14b are both —H ozone is —H and the other is —OH, —OCH3 or —OCH2CH3, or R14a and R14b together form a keto group; and R15 and R18 are independently chosen from —H or —OH, or R5 and R8 are both keto and the ring A is a p-benzoquinone ring. In modified starting materials, the 21-cyano group can be replaced by other groups introduced using nucleophilic reagents.

    摘要翻译: 提供了制备具有式(XIV)的稠环结构的化合物的方法,其包含一个或多个由式(XVI)的21-氰基化合物开始的反应,其中通常; R 1是酰亚胺基或芳氧基亚甲基; R 5和R 8独立地选自-H,-OH或-OCOCH 2 OH,或R 5 O >和R 8均为酮,环A为对苯醌环; R 14a和R 14b都是-H臭氧是-H,另一个是-OH,-OCH 3或-OCH 3 2 3,或R 14a和R 14b共同形成酮基; R 15和R 18独立地选自-H或-OH,或R 5和R 8, 都是酮基,环A是对苯醌环。 在改性原料中,21-氰基可以被其它使用亲核试剂引入的基团所取代。