PROCESS FOR PREPARING 1-(4-PIPERIDINYL)BENZIMIDAZOLONE DERIVATIVES
    2.
    发明申请
    PROCESS FOR PREPARING 1-(4-PIPERIDINYL)BENZIMIDAZOLONE DERIVATIVES 审中-公开
    制备1-(4-哌啶子基)苯并咪唑衍生物的方法

    公开(公告)号:US20110295013A1

    公开(公告)日:2011-12-01

    申请号:US13147698

    申请日:2010-02-03

    IPC分类号: C07D401/04

    CPC分类号: C07D211/58 C07D401/04

    摘要: Provision of an industrial method of producing a 1-(4-piperidinyl)benzimidazolone derivative in a high yield at a low cost.A production method of 1-(4-piperidinyl)benzimidazolone derivative (1) or a salt thereof according to the following steps.[step 1] a step of subjecting a piperidone compound (2) and an aniline compound (3) to a reductive amination reaction to give to a compound (4) [step 2] a step of reacting the compound (4) with di-t-alkyl dicarbonate or N,N′-disuccinimidyl carbonate to give the 1-(4-piperidinyl)benzimidazolone derivative (1) wherein R1 is optionally substituted alkyl or an optionally substituted cyclic group, andR2 is optionally substituted alkyl, optionally substituted alkenyl or optionally substituted aryl.

    摘要翻译: 提供以低成本高产率生产1-(4-哌啶基)苯并咪唑酮衍生物的工业方法。 根据以下步骤的1-(4-哌啶基)苯并咪唑酮衍生物(1)或其盐的制备方法。 [步骤1]将哌啶酮化合物(2)和苯胺化合物(3)进行还原胺化反应以得到化合物(4)的步骤[步骤2]使化合物(4)与二 - 碳酸二烷基酯或碳酸N,N'-二琥珀酰亚胺酯,得到1-(4-哌啶基)苯并咪唑酮衍生物(1),其中R 1为任选取代的烷基或任意取代的环状基团,R 2为任选取代的烷基, 或任选取代的芳基。