申请人:Kompella Amala
公开号:US20130184490A1
公开(公告)日:2013-07-18
Disclosed is a process for the preparation of S-2-Hydroxy-3-methoxy-3,3-diphenylpropionic acid (I) the key intermediate for the preparation of Ambrisentan [(+)-2(S)-(4,6-Dimethylpyrimidin-2-yloxy)-3-methoxy-3,3-diphenylpropionic acid]. Ambrisentan of the formula (IA) is approved under the trademark “Letairis ®” by the US Food and Drug Administration for the treatment of Pulmonary artery hypertension (PAH).
本发明公开了一种制备S-2-羟基-3-甲氧基-3,3-二苯基丙酸(I)的方法,该方法是制备Ambrisentan [(+)-2(S)-(4,6-二甲基嘧啶-2-氧基)-3-甲氧基-3,3-二苯基丙酸]的关键中间体。公式(I)的Ambrisentan已获得美国食品和药物管理局的商标“Letairis®”批准,用于治疗肺动脉高压(PAH)。