Processes for the preparation of threo-1,2-epoxy-3-amino-4-phenylbutane derivatives
    1.
    发明授权
    Processes for the preparation of threo-1,2-epoxy-3-amino-4-phenylbutane derivatives 有权
    制备苏式-1,2-环氧-3-氨基-4-苯基丁烷衍生物的方法

    公开(公告)号:US06344572B1

    公开(公告)日:2002-02-05

    申请号:US09647340

    申请日:2000-11-17

    IPC分类号: C07D30102

    CPC分类号: C07D301/26 C07D303/36

    摘要: The present invention provides a production method of high quality threo-1,2-epoxy-3-amino-4-phenylbutane derivatives (1) on a commercial scale in a simple, easy and efficient manner and with very high productivity, which comprises treating a threo-1-halo-2-hydroxy-3-amino-4-phenylbutane derivative (2) with a base in a polar organic solvent or a solvent composed of a polar organic solvent and water, and adding the resulting reaction mixture to water to thereby cause the resulting threo-1,2-epoxy-3-amino-4-phenylbutane derivative (1) to crystallize out.

    摘要翻译: 本发明以简单,容易和有效的方式以非常高的生产率提供了高质量的threo-1,2-epoxy-3-氨基-4-苯基丁烷衍生物(1)的制备方法,其包括处理 在极性有机溶剂或由极性有机溶剂和水组成的溶剂中的碱,将苏-1-卤代-2-羟基-3-氨基-4-苯基丁烷衍生物(2)与碱反应,并将得到的反应混合物加入到水 从而使得到的所述苏-12-环氧-3-氨基-4-苯基丁烷衍生物(1)结晶出来。