(E)-1-((3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethanone O-2-morpholinoethyl oxime 在
N-甲基-4-哌啶酮 、 aluminum isopropoxide 作用下,
以
甲苯 为溶剂,
反应 20.0h,
以78%的产率得到(8S,9S,10R,13S,14S,17S)-10,13-dimethyl-17-((E)-1-(2-morpholinoethoxyimino)ethyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one