Asymmetric reduction process
    6.
    发明授权
    Asymmetric reduction process 有权
    不对称还原过程

    公开(公告)号:US08927740B2

    公开(公告)日:2015-01-06

    申请号:US14003385

    申请日:2012-03-08

    IPC分类号: C07D495/04

    CPC分类号: C07D495/04

    摘要: The present invention relates to a stereoselective reduction procedure to obtain, by means of catalytic asymmetric hydrogenation by hydrogen transfer, a compound of formula (I) in which X is S or SO2 and R4 is hydrogen or an SO2NH2 group, from the corresponding ketone precursor, said compound of formula (I) being useful as an intermediate in the preparation of dorzolamide or of the hydrochloride salt thereof.

    摘要翻译: 本发明涉及通过氢转移的催化不对称氢化获得其中X为S或SO 2,R 4为氢或SO 2 NH 2基的式(I)化合物的立体选择性还原方法, 所述式(I)化合物可用作制备多佐胺或其盐酸盐的中间体。

    ASYMMETRIC REDUCTION PROCESS
    8.
    发明申请
    ASYMMETRIC REDUCTION PROCESS 有权
    不对称还原过程

    公开(公告)号:US20130338377A1

    公开(公告)日:2013-12-19

    申请号:US14003385

    申请日:2012-03-08

    IPC分类号: C07D495/04

    CPC分类号: C07D495/04

    摘要: The present invention relates to a stereoselective reduction procedure to obtain, by means of catalytic asymmetric hydrogenation by hydrogen transfer, a compound of formula (I) in which X is S or SO2 and R4 is hydrogen or an SO2NH2 group, from the corresponding ketone precursor, said compound of formula (I) being useful as an intermediate in the preparation of dorzolamide or of the hydrochloride salt thereof.

    摘要翻译: 本发明涉及通过氢转移的催化不对称氢化获得其中X为S或SO 2,R 4为氢或SO 2 NH 2基的式(I)化合物的立体选择性还原方法, 所述式(I)化合物可用作制备多佐胺或其盐酸盐的中间体。