乙酸酐 、 (3S,8R,9S,10R,13S,14S)-17-Hydrazono-3-hydroxy-10,13-dimethyl-1,2,3,4,7,8,9,10,11,12,13,14,15,17-tetradecahydro-cyclopenta[a]phenanthren-16-one oxime 反应 0.75h,
以42%的产率得到16-cyano-13α-(5-methyl-1,3,4-oxadiazol-2-yl)-13,16-seco-17-norandrost-5-en-3β-yl acetate