The present invention relates to an improved process for the preparation of 1-[[[(1R)-1-[3[(1E)-2-(7chloro-2-quinolinyl) ethenyl] phenyl]-3-[2-(1-hydroxy-1-methylethyl) phenyl] propyl] thio] methyl] cyclopropaneacetic acid (Formula-1) and its salts using Methyl 2-[(3S)-[3-[(2E)-(7-chloro quinolin-2-yl) ethenyl] phenyl]-3-halopropyl] benzoate (Formula-2)
该发明涉及一种改进的制备1-[[[(1R)-1-[3[(1E)-2-(7
氯-2-
喹啉基)
乙烯基] 苯基]-3-[2-(1-羟基-1-甲基乙基) 苯基] 丙基]
硫] 甲基] 环
丙酸(Formula-1)及其盐的方法,使用甲基2-[(3S)-[3-[(2E)-(
7-氯喹啉-2-基)
乙烯基] 苯基]-3-卤代丙基]
苯甲酸酯(Formula-2)。