(Z)-5-phenyl-pent-2-enyl trichloroacetimidate 、
(R)-4-[(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-Tris-(tert-butyl-dimethyl-silanyloxy)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-17-yl]-pentanoic acid 在
[(R
p,S)-COP-OAc]
2 作用下,
以
二氯甲烷 为溶剂,
反应 48.0h,
以91%的产率得到(R)-5-phenylpent-1-en-3-yl (R)-4-((3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-tris((tert-butyldimethylsilyl)oxy)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate