(3S,5R,8R,9S,10S,13S,14S,15R)-3-Benzyloxy-17-furan-3-yl-10,13-dimethyl-2,3,4,5,6,7,8,9,10,11,12,13,14,15-tetradecahydro-1H-cyclopenta[a]phenanthren-15-ol 在
μ-oxo-bis(chlorotriphenylbismuth) 作用下,
以
二氯甲烷 为溶剂,
反应 7.0h,
以94%的产率得到(3S,5R,8R,9S,10S,13S,14S)-3-Benzyloxy-17-furan-3-yl-10,13-dimethyl-1,2,3,4,5,6,7,8,9,10,11,12,13,14-tetradecahydro-cyclopenta[a]phenanthren-15-one