Process for the preparation of levetiracetam
    2.
    发明公开
    Process for the preparation of levetiracetam 审中-公开
    Verfahren zur Herstellung von Levetiracetam

    公开(公告)号:EP2147911A1

    公开(公告)日:2010-01-27

    申请号:EP08425497.8

    申请日:2008-07-24

    IPC分类号: C07D207/273

    CPC分类号: C07D207/27

    摘要: A process for the manufacturing of levetiracetam, wherein said process comprises the steps of: (1) reacting the (-)-(S)-alpha-ethyl-2-oxo-1-pyrrolidine acetic acid with a substoichiometric amount of an activating agent in an alcoholic solvent, and (2) subjecting the resulting reaction solution of step (1) to an ammonolysis process with gaseous ammonia.

    摘要翻译: 制备左乙拉西坦的方法,其中所述方法包括以下步骤:(1)使( - ) - (S)-α-乙基-2-氧代-1-吡咯烷乙酸与亚化学计量的活化剂 在醇溶剂中,和(2)使所得到的步骤(1)的反应溶液用氨气进行氨解反应。