α-Ethoxyethenyl zinc chloride 、 3β-acetoxyandtrosta-5,16-dien-17-yl trifluoromethanesulfonate ester 在
四(三苯基膦)钯 作用下,
以82%的产率得到Acetic acid (3S,10R,13S)-17-(1-butoxy-vinyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl ester