PROCESS FOR PREPARING PYRIDINE-SUBSTITUTED AMINO KETAL DERIVATIVES
    1.
    发明申请
    PROCESS FOR PREPARING PYRIDINE-SUBSTITUTED AMINO KETAL DERIVATIVES 审中-公开
    制备吡啶取代的氨基酮衍生物的方法

    公开(公告)号:WO2004072026A2

    公开(公告)日:2004-08-26

    申请号:PCT/EP2004/000640

    申请日:2004-01-27

    IPC分类号: C07D

    CPC分类号: C07D213/53 C07D213/51

    摘要: The present invention relates to an efficient process for preparing derivatives of 1-(pyridinyl)-1, 1-dialkoxy-2-aminoethane of the formula (I), with which compounds of the formula (I) can be prepared in high purity and yield and in the form of the free base without isolating the acetylpyridine oxime of the formula (XI) which is a critical product from a safety point of view as a solid.

    摘要翻译: 本发明涉及用于制备式(I)的1-(吡啶基)-1,1-二烷氧基-2-氨基乙烷的衍生物的有效方法,通式(I)的化合物 )可以以高纯度和产率制备并且以游离碱的形式制备,无需分离式(XI)的乙酰基吡啶肟,从安全的观点来看,该化合物是固体的关键产物。