A novel process for the production of 5-(4-Fluro-phenyl)-2-isopropyl-4-phenyl-1-(3,5,7-trihydroxy-heptyl)-1H-pyrolle-3-carboxylic acid phenylamide hemicalcium salt, its stereoisomer or polymorph from a (6-2-[2-(4-Fluoro-phenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrolidin-1-yl]-ethyl}-2-phenyl- [1,3,2] dioxaborinan-4-yl)-acetic acid tert-butyl ester is disclosed.
本发明揭示了一种从(6-2-[2-(4-
氟苯基)-5-异丙基-3-苯基-4-苯基
氨基
吡咯啉-1-基]-乙基}-2-苯基-[1,3,2]二氧杂
环丁烷-4-基)-
醋酸叔丁酯中生产5-(4-
氟苯基)-2-异丙基-4-苯基-1-(3,5,7-三羟基庚基)-1H-
吡咯啉-3-
羧酸苯酰胺半
钙盐、其立体异构体或多晶形的新工艺。