Preparation of dihydrocodeine from codeine
    42.
    发明授权
    Preparation of dihydrocodeine from codeine 有权
    从可待因制备二氢可待因

    公开(公告)号:US06887999B1

    公开(公告)日:2005-05-03

    申请号:US10851527

    申请日:2004-05-21

    申请人: Igor Likhotvorik

    发明人: Igor Likhotvorik

    IPC分类号: C07D489/00 C07D489/02

    CPC分类号: C07D489/02

    摘要: A process for the preparation of dihydrocodeine by hydrogenating codeine or a salt thereof in aqueous solution in the presence of a catalytic metal and deactivating agent that decreases impurities formation.

    摘要翻译: 通过在可降低杂质形成的催化金属和钝化剂存在下,在水溶液中氢化可待因或其盐,制备二氢可待因的方法。