PREPARATION PROCESS USEFUL IN SYNTHESIS OF ATORVASTATIN
    1.
    发明申请
    PREPARATION PROCESS USEFUL IN SYNTHESIS OF ATORVASTATIN 失效
    制备方法有利于ATORVASTATIN的合成

    公开(公告)号:US20110112309A1

    公开(公告)日:2011-05-12

    申请号:US12734500

    申请日:2008-04-04

    摘要: The present invention relates to a preparation process useful in synthesis of atorvastatin, more particularly a process for preparing atorvastatin is effective in treating hyperlipemia, comprising protecting the dihydroxy group at C3 and C5 positions of the starting material cis-t-butyl-6-substituted-3,5-dihydroxy-hexanoate with trialkyl orthoformate, reducing the terminal nitro or cyano group to amine group, performing JV-alkylation by sequentially reacting with ethyl 4-fluorobenzene-2-haloacetate and isobutyryl chloride, cyclizing with JV,3-diphenylpropynamide, and performing deprotection and hydrolysis.

    摘要翻译: 本发明涉及可用于合成阿托伐他汀的制备方法,更具体地说,一种制备阿托伐他汀的方法在治疗高脂血症方面是有效的,包括保护原料顺式叔丁基-6-取代的C3和C5位的二羟基 -3,5-二羟基己酸酯与原甲酸三烷基酯反应,将末端硝基或氰基还原成胺基,通过与4-氟苯-2-卤代乙酸乙酯和异丁酰氯依次反应进行N-烷基化,用JV,3-二苯基丙酰胺 ,进行脱保护和水解。