Oxidation process using periodic acid
    4.
    发明授权
    Oxidation process using periodic acid 失效
    使用高碘酸的氧化工艺

    公开(公告)号:US06172231B2

    公开(公告)日:2001-01-09

    申请号:US09283465

    申请日:1999-04-01

    IPC分类号: C07D22104

    CPC分类号: C07D405/04

    摘要: The present invention relates to a periodic acid oxidation which converts the penultimate intermediate bearing a primary alcohol to the target endothelin antagonist compound of Formula I having a carboxylic acid.

    摘要翻译: 本发明涉及一种高碘酸氧化,其将具有伯醇的倒数第二中间体转化成具有羧酸的式I的靶内皮素拮抗剂化合物。

    Process for the asymmetric synthesis of dihydrobenzoxathins
    6.
    发明申请
    Process for the asymmetric synthesis of dihydrobenzoxathins 审中-公开
    二氢苯并草毒素的不对称合成方法

    公开(公告)号:US20050148781A1

    公开(公告)日:2005-07-07

    申请号:US10967773

    申请日:2004-10-18

    IPC分类号: C07D327/06

    CPC分类号: C07D327/06

    摘要: This invention relates to an asymmetric synthesis of sulfides via a chiral sulfoxide directed stereospecific reduction of α,β-unsaturated sulfoxide to the saturated sulfide. These sulfides can be useful as selective estrogen receptor modulators or anti-neoplastic agents.

    摘要翻译: 本发明涉及通过手性亚砜将α,β-不饱和亚砜定向还原成饱和硫化物的不对称合成硫化物。 这些硫化物可用作选择性雌激素受体调节剂或抗肿瘤剂。