Novel process for the synthesis of 5-(4-fluorophenyl)-1-[2-((2R,4R-4-hydroxy-6-oxo-tetrahydro-pyran-2-yl)-ethyl]-2-isopropyl-4-phenyl-1H-pyrole-3-carboxylic acid and phenylamide
申请人:Butler Eugene Donald
公开号:US20070032662A1
公开(公告)日:2007-02-08
An improved process for the preparation of 5-(4-fluorophenyl)-1-[2-((2R,4R)-4-hydroxy-6-oxo-tetrahydro-pyran-2-yl)-ethyl]-2-isopropyl-4-phenyl-1H-pyrrole-3-carboxylic acid phenylamide by a novel synthesis is described where methyl cyanoacetate is converted in eight operations or fewer to the desired product, as well as other valuable intermediates used in the process.
本文描述了一种改进的工艺,通过一种新的合成方法,将甲基氰乙酸酯转化为所需产物,即5-(4-氟苯基)-1-[2-((2R,4R)-4-羟基-6-氧代-四氢吡喃-2-基)-乙基]-2-异丙基-4-苯基-1H-吡咯烷-3-羧酸苯酰胺,该工艺仅需进行八次或更少的操作,同时还使用了其他有价值的中间体。