PROCESS FOR THE STEREOSELECTIVE PREPARATION OF A PYRAZOLE-CARBOXAMIDE
    2.
    发明申请
    PROCESS FOR THE STEREOSELECTIVE PREPARATION OF A PYRAZOLE-CARBOXAMIDE 有权
    吡唑酰胺的立体选择性制备方法

    公开(公告)号:US20160108001A1

    公开(公告)日:2016-04-21

    申请号:US14892386

    申请日:2014-06-19

    IPC分类号: C07D231/14 C07C239/20

    CPC分类号: C07D231/14 C07C239/20

    摘要: The present invention relates to a process for the enantioselective preparation of the compound of formula (Ib), which process comprises a) reducing the (E)- or (Z)-form of a compound of formula (II), with an enantioselective reagent to a compound of formula (IIIa), and b) acylating the compound of formula (IIIa) with the compound of formula (IV), or c) coupling the compound of formula (IV) with the compound of formula (II), to give a compound of formula (V) and d) reducing compound of formula (V) in the presence of hydrogen, a catalyst and a chiral ligand, to the compound of formula (Ib).

    摘要翻译: 本发明涉及式(Ib)化合物的对映选择性制备方法,该方法包括a)用对映选择性试剂还原式(II)化合物的(E) - 或(Z) 与式(Ⅳa)化合物反应,和b)用式(Ⅳ)化合物酰化式(Ⅳa)化合物,或c)将式(Ⅳ)化合物与式(Ⅳ)化合物偶合至 在式(Ⅴ)化合物的存在下,在式(Ⅴ)化合物和d)还原式(Ⅴ)化合物的存在下,将式(Ⅴ)化合物和d)还原化合物在氢气,催化剂和手性配体的存在下反应。