3β-hydroxy-16-(hydroxymethylene)androst-5-en-17-one 、
乙氧甲酰基亚甲基三苯基膦 以
四氢呋喃 为溶剂,
反应 18.0h,
以64%的产率得到3-[(3S,8R,9S,10R,13S,14S)-3-Hydroxy-10,13-dimethyl-17-oxo-1,2,3,4,7,8,9,10,11,12,13,14,15,17-tetradecahydro-cyclopenta[a]phenanthren-(16E)-ylidene]-propionic acid ethyl ester