11β-Acryloyloxy-5α-pregnane-3,20-dione 在
hydrogen hexachloroiridate 、
三乙胺 、
三甲氧基磷 作用下,
以
异丙醇 为溶剂,
生成 3-(1,3-Dimethyl-butylamino)-propionic acid (3R,5S,8S,9S,10S,11S,13S,14S,17S)-17-acetyl-3-hydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-11-yl ester