A catalytic process for the preparation of optically active compounds and their conversion thereafter to desired drug substances. In particular, the process relates to the preparation of (S)-3-(1-Dimethylamino-ethyl)-phenol using asymmetric catalytic reduction and pressure hydrogenation, thereby providing an improved route to forming drug substances such as rivastigimine and rivastigimine hydrogen tartrate.
一种催化制备光学活性化合物的过程,并随后将其转化为所需药物物质。具体而言,该过程涉及使用不对称催化还原和压力氢化制备(S)-3-(1-
二甲氨基乙基)-
苯酚,从而提供了一种改进的路线来形成药物物质,如利伐普利和利伐普利氢
酒石酸盐。