(6R)-6-[(1S)-1-[(3S,8S,9S,10R,13S,14S,17R)-10,13-dimethyl-3-[(2R,3R,4S,5R,6R)-3-[(2S,3R,4R,5S,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxy-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethyl]-3-methyloxan-2-one 在
二异丁基氢化铝 作用下,
以
乙醚 、
正己烷 为溶剂,
反应 10.0h,
生成