三氟甲磺酸苄酯 、
pregnenolone acetate 20-cyanohydrin 以
二氯甲烷 为溶剂,
反应 0.5h,
以49%的产率得到Benzoic acid ((3S,8S,9S,10R,13S,14S,17S)-3-acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-cyano-methyl-methyl ester