Process for reducing the 6-keto group of a morphinan alkaloid to the 6-hydroxy group by hydrogenation
    1.
    发明授权
    Process for reducing the 6-keto group of a morphinan alkaloid to the 6-hydroxy group by hydrogenation 有权
    通过氢化将吗啡喃生物碱的6-酮基还原成6-羟基的方法

    公开(公告)号:US08853402B2

    公开(公告)日:2014-10-07

    申请号:US13390818

    申请日:2010-08-13

    IPC分类号: C07D489/08 C07D489/02

    CPC分类号: C07D489/02 C07D489/08

    摘要: A process for the reduction of a 6-keto group in a morphinan alkaloid to the corresponding 6-hydroxy group includes hydrogenating the 6-keto group using gaseous hydrogen in the presence of a heterogeneous catalyst and a solvent, to yield the 6-hydroxy morphinan alkaloid, wherein the reduction is carried out at a pH in the range of about 5 to about 7, and the 6-hydroxy morphinan alkaloid has an α:β ratio of >85:15.

    摘要翻译: 将吗啡烷生物碱中的6-酮基还原成相应的6-羟基的方法包括在非均相催化剂和溶剂的存在下使用气态氢使6-酮基进行氢化,得到6-羟基吗啡喃 生物碱,其中还原在约5至约7范围内的pH下进行,并且6-羟基吗啡喃生物碱具有α:&bgr; 比例> 85:15。

    PROCESS FOR REDUCING THE 6-KETO GROUP OF A MORPHINAN ALKALOID TO THE 6-HYDROXY GROUP BY HYDROGENATION
    2.
    发明申请
    PROCESS FOR REDUCING THE 6-KETO GROUP OF A MORPHINAN ALKALOID TO THE 6-HYDROXY GROUP BY HYDROGENATION 有权
    通过氢化将6-羟基苯甲酸的6-KETO基团还原成6-羟基的方法

    公开(公告)号:US20120209002A1

    公开(公告)日:2012-08-16

    申请号:US13390818

    申请日:2010-08-13

    IPC分类号: C07D489/08 C07D489/02

    CPC分类号: C07D489/02 C07D489/08

    摘要: The present invention relates to a process for the reduction of a 6-keto group in a morphinan alkaloid to the corresponding 6-hydroxy group, comprising hydrogenating the 6-keto group using gaseous hydrogen in the presence of a heterogenous catalyst and a solvent, to yield the 6-hydroxy morphinan alkaloid, wherein the reduction is carried out at a pH in the range of about 5 to about 7, and the 6-hydroxy morphinan alkaloid has an α:β ratio of >85:15.

    摘要翻译: 本发明涉及将吗啡喃生物碱中的6-酮基还原成相应的6-羟基的方法,该方法包括在异种催化剂和溶剂的存在下使用气态氢将6-酮基基团氢化成 产生6-羟基吗啡喃生物碱,其中还原在约5至约7范围内的pH下进行,6-羟基吗啡喃生物碱具有α:&bgr; 比例> 85:15。