The present invention relates to an improved process for the preparation of 4- ((1R) -2- [5- (2-fluoro- 3 methoxy phenyl) – 3 - [ 2-fluoro- 6-(trifluoro methyl) phenyl] methyl} -4-methyl- 2,6-dioxo- 3,6dihydropyrimidin-1(2H)-yl]-1-phenylethyl}amino) butanoic acid of formula (I) or its pharmaceutically acceptable salts. The compound of formula (I) is represented by the following structural formula.
本发明涉及一种改进的方法,用于制备4-((1R)-2-[5-(2-
氟-3-
甲氧基苯基)-3-[2-
氟-6-(三
氟甲基)苯基]甲基}-4-甲基-2,6-二氧杂
嘧啶-1(2H)-基]-1-苯乙基}
氨基)
丁酸(I)或其药学上可接受的盐。式(I)化合物的结构式如下: