申请人:Shi Yian
公开号:US20140249309A1
公开(公告)日:2014-09-04
Disclosed is a method for preparing optically pure (+)-ambrisentan and (+)-darusentan, comprising: firstly catalyzing the asymmetric epoxidation of a β-unsaturated alkene using a chiral ketone derived from fructose or a hydrate thereof as a catalyst, and then subjecting the product to an epoxy compound ring-opening reaction and substitution reaction successively to obtain optically pure (+)-ambrisentan and (+)-darusentan.
公开了一种制备光学纯的(+)-安立生坦和(+)-达鲁生坦的方法,包括:首先催化β-不饱和烯烃的不对称环氧化,使用从果糖或其水合物衍生的手性酮作为催化剂,然后将产物依次进行环氧化合物的开环反应和取代反应,以获得光学纯的(+)-安立生坦和(+)-达鲁生坦。