Process for preparing a 5-hydroxy-3-oxo-hexanoic acid derivative
    2.
    发明授权
    Process for preparing a 5-hydroxy-3-oxo-hexanoic acid derivative 失效
    5-羟基-3-氧代 - 己酸衍生物的制备方法

    公开(公告)号:US07081546B2

    公开(公告)日:2006-07-25

    申请号:US10540524

    申请日:2003-11-17

    IPC分类号: C07C49/173

    摘要: The present invention is related to a novel process for preparing an optically active 5-hydroxy-3-oxo-hexanoic acid derivative or its tautomer which is useful intermediate for preparing statins such as atorvastatin and rosuvastatin. Blaise reaction of (S)-4-halo-3-hydroxybutyronitrile with -haloacetate is utilized as a key reaction to provide the product with minimal formation of side products and in good yield.

    摘要翻译: 本发明涉及一种制备光学活性的5-羟基-3-氧代 - 己酸衍生物或其互变异构体的新方法,其可用于制备他汀类药物如阿托伐他汀和瑞舒伐他汀的中间体。 (S)-4-卤代-3-羟基丁腈与卤代乙酸酯的Blaise反应被用作关键反应,以使产物形成最少的副产物并以良好的产率。