Process
    3.
    发明授权
    Process 失效
    处理

    公开(公告)号:US5278322A

    公开(公告)日:1994-01-11

    申请号:US968429

    申请日:1992-10-29

    CPC分类号: C07D307/93

    摘要: A process for the preparation of a compound of the formula ##STR1## comprising reacting 1R, cis 2,2-dimethyl 3-(2-oxopropyl)-cyclopropane-1-carboxylic acid with an alkali metal, alkaline-earth metal or magnesium hypohalite, and oxidizing the 1R, cis 2,2-dimethyl 3-(hydroxy-carboxy-methyl)-cyclopropane-1-carboxylic acid or its salt or lactonic form thereof thus obtained with an oxidizing agent to obtain the compound of formula I and novel intermediates.

    摘要翻译: 一种制备式(I)化合物的方法,包括将1R,顺式2,2-二甲基3-(2-氧代丙基) - 环丙烷-1-羧酸与碱金属,碱土金属 或次卤酸镁,并用氧化剂氧化得到的1R,顺式2,2-二甲基3-(羟基 - 羧基 - 甲基) - 环丙烷-1-羧酸或其盐或内酯形式,得到式 我和新颖的中间体。