Acetic acid (3S,8R,9S,10R,13S,14S,17S)-17-ethynyl-17-isothiocyanato-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 以
甲醇 为溶剂,
反应 5.0h,
以0.008 g的产率得到3β-acetoxy-21-thiocyanopregna-5,17(20),20-triene