1-[(3S,5R,8R,9S,10S,13R,14S,17S)-3-[(2R,4S,5S,6R)-5-[(2S,4S,5S,6R)-5-[(2S,4S,5S,6R)-4,5-dihydroxy-6-methyloxan-2-yl]oxy-4-hydroxy-6-methyloxan-2-yl]oxy-4-hydroxy-6-methyloxan-2-yl]oxy-14-hydroxy-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]ethanone 在
三乙胺 、
肼 作用下,
以
乙醇 为溶剂,
反应 2.0h,
以120 mg的产率得到14-hydroxy-3β-(tris-β-D-digitoxosyloxy)-5β,14β-pregnan-20-one 20-hydrazone