Process for the Preparation of Nateglinide
    89.
    发明申请
    Process for the Preparation of Nateglinide 有权
    那格列奈的制备方法

    公开(公告)号:US20070259955A1

    公开(公告)日:2007-11-08

    申请号:US11570405

    申请日:2005-06-08

    CPC分类号: C07C231/02 C07C233/63

    摘要: A one-pot process for the preparation of nateglinide, which process comprises reacting an alkyl ester of D-phenylalanine of formula (II): where R represents C1-4alkyl, typically methyl, either as the free base or in salt form (typically the hydrochloride), with trans-4-isopropylcyclohexanecarboxylic acid of formula (III): where X represents hydroxy or halo, typically chloro, to obtain a C1-4 alkyl ester of nateglinide of formula (IV), preferably the methyl ester of nateglinide: followed by hydrolysis to yield nateglinide of formula (I):

    摘要翻译: 用于制备那格列奈的一锅法,该方法包括使式(II)的D-苯丙氨酸的烷基酯:其中R表示C 1-4烷基,通常为甲基,作为 游离碱或盐形式(通常为盐酸盐)与式(III)的反式-4-异丙基环己烷羧酸反应:其中X表示羟基或卤素,通常为氯,得到C 1-4烷基 (IV)那格列奈的酯,优选那格列奈的甲酯:然后水解以得到式(I)的那格列奈: