The present invention relates to an improved process for preparing enantiomerically pure 2-hydroxy-2-aryl-ethylamines, and their pharmaceutically acceptable salts, by transition metal catalyzed asymmetric hydrogenation preferably using a ruthenium transition metal catalyst system having as a chiral, bidentate phosphine ligand ((R)-I -diphenylphosphino-2- [(S)-α-(N,N-dimethylamino)-o-diphenylphosphinophenyl)methyl] ferrocene), such as Chiralyst LM 1010 RS available from Umicore AG & Co., KG.
本发明涉及一种改进的制备对映纯2-羟基-2-芳基乙基胺及其药学可接受盐的方法,通过过渡
金属催化不对称氢化,优选使用具有手性双齿
膦配体的
钌过渡
金属催化剂体系(例如Chiralyst LM 1010 RS,由Umicore AG&Co. KG提供),该
配体为((R)-I-
二苯基膦酸-2- [(S)-α-(N,N-二甲基
氨基)-o-
二苯基膦酸苯基甲基]
二茂铁)。