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    • 2. 发明申请
    • Process and intermediates useful in the preparation of statins, particularly atorvastatin
    • 用于制备他汀类药物,特别是阿托伐他汀的方法和中间体
    • US20070043221A1
    • 2007-02-22
    • US10563459
    • 2004-07-23
    • David John MoodyJonathan William Wiffen
    • David John MoodyJonathan William Wiffen
    • C07D405/02C07D207/34
    • C07D405/06C07D207/34C07D309/10C07D309/30Y02P20/55
    • There is provided a process for the preparation of a compound of formula (7) or salts thereof: wherein R1 represents a hydrogen or a hydrocarbyl group, R2 represents a hydrogen or substituent group, R3 represents a hydrogen or a hydrocarbyl group, and X represents a hydrogen or substituent group which comprises a) cyanating a compound of formula (1): wherein Y represents a halo group, preferably CI or Br; P1 represents hydrogen or a protecting group, and W represents =0 or —OP2, in which P2 represents hydrogen or a protecting group, to give a compound of formula (2): b) reducing the compound of formula (2) to give a compound of formula (3): coupling the compound of formula (3) with a compound of formula (4): to give a compound of formula (5): when W represents —OP2, deprotecting and then oxidising the compound of formula (5) to give a compound of formula (6): and e) subjecting the compound of formula (5) when W represents ═O, or compound of formula (6) to ring-opening, and removal of any remaining protecting groups, to give a compound of formula (7) or salts thereof.
    • 提供了制备式(7)化合物或其盐的方法:其中R 1表示氢或烃基,R 2表示氢 或取代基,R 3表示氢或烃基,X表示氢或取代基,其包含a)使式(1)的化合物氰化:其中Y表示卤素,优选 CI或Br; P 1表示氢或保护基,W表示= 0或-OP 2,其中P 2表示氢或保护基 得到式(2)化合物:b)还原式(2)化合物得到式(3)化合物:将式(3)化合物与式(4)化合物偶联:得到 式(5)化合物:当W表示-OP 2时,将式(5)化合物去保护然后氧化得到式(6)化合物:和e)使化合物 当W表示-O时,式(5)或式(6)化合物开环,除去任何残留的保护基,得到式(7)化合物或其盐。