PREPARATION OF (-)-HUPERZINE A
    10.
    发明申请
    PREPARATION OF (-)-HUPERZINE A 有权
    ( - ) - 胡哌嗪A的制备

    公开(公告)号:US20160159745A1

    公开(公告)日:2016-06-09

    申请号:US14905331

    申请日:2014-06-17

    CPC classification number: C07D221/22

    Abstract: The present invention relates to a method for preparing (−)-huperzine A. The method involves: allowing a mixture of (±)-huperzine A obtained from chemical synthesis and a chiral acid to form (±)-huperzine A chiral acid salt under suitable conditions; recrystallizing the chiral acid salt from an organic solvent and basifying with an alkali to obtain optically pure (−)-huperzine A. The method is convenient to operate and suitable for industrial production. The chemical purity and optical purity of (−)-huperzine A obtained by the method are each greater than 99.5%, satisfying the requirement for raw pharmaceutical purity in the pharmaceutical industry.

    Abstract translation: 本发明涉及一种制备( - ) - 石杉碱甲酯的方法。该方法包括:使从化学合成获得的(±) - 海星嗪A与手性酸的混合物形成(±) - 胡比嗪A手性酸盐 适合条件; 将手性酸盐从有机溶剂中重结晶,并用碱碱化,得到光学纯的( - ) - 石杉碱A。该方法操作方便,适合工业生产。 通过该方法获得的( - ) - 石杉碱甲的化学纯度和光学纯度均大于99.5%,满足制药行业原始药物纯度的要求。

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