The present invention relates to processes comprising a combined racemization and stereoselective reductive amination step in which an aldehyde compound of formula (I) is contacted with an (R)-selective ω-transaminase or an (S)-selective ω-transaminase to racemize the compound of formula (I) and obtain an amine compound of formula (II). These processes are useful for the preparation of precursors of pharmaceutically active agents such as brivaracetam and pregabalin.
本发明涉及一种包括联合外消旋化和立体选择性还原胺化步骤的工艺,在该步骤中,将式(I)的醛化合物与(R)-选择性ω-转
氨酶或(S)-选择性ω-转
氨酶接触,使式(I)的化合物外消旋化,并获得式(II)的胺化合物。这些工艺对于制备药物活性剂的前体,如布利瓦拉西坦和
普瑞巴林,是有用的。