The present invention relates to an improved and novel process for the preparation of highly pure (>99.8 %) (+)-2(S)-(4,6-dimethylpyrimidin-2-yloxy)-3-methoxy-3,3-diphenylpropionic acid (Ambrisentan) of formula (I).
本发明涉及一种改进和新颖的工艺,用于制备高纯度(>99.8%)(+)-2(S)-(4,6-二
甲基嘧啶-2-氧基)-3-甲氧基-
3,3-二苯基丙酸(Ambrisentan)的化合物,其
化学式为(I)。