Process for the preparation of simvastatin and derivatives thereof
    3.
    发明授权
    Process for the preparation of simvastatin and derivatives thereof 失效
    辛伐他汀及其衍生物的制备方法

    公开(公告)号:US06252091B1

    公开(公告)日:2001-06-26

    申请号:US09668101

    申请日:2000-09-22

    IPC分类号: C07D30930

    CPC分类号: C07D309/30 Y02P20/55

    摘要: A process for the preparation of compounds of formula (I) wherein R is a C1 to C12 alkyl group and R1 is a protecting group or H which process comprises (a) converting the diol lactone of formula (II) to the protected diol lactone of formula (IIa) wherein R1 is a protecting group (b) acylating the protected diol lactone (IIa) to give compound (I) wherein R1 is a protecting group, (c) optionally removing the protecting group R1 to give compound (I) wherein R1 is H; and wherein steps (a) and/or (b) are carried out in the presence of N-methylimidazole.

    摘要翻译: 制备式(I)化合物的方法,其中R是C1-C12烷基,R1是保护基或H,其方法包括(a)将式(II)的二醇内酯转化成式(IIa)的被保护的二醇内酯 )其中R1是保护基团(b)酰化保护的二醇内酯(IIa)以得到其中R 1为保护基的化合物(I),(c)任选地除去保护基团R 1,得到其中R 1为H ; 步骤(a)和/或(b)在N-甲基咪唑存在下进行。