(3S,8S,9S,10R,13R,14S,17R)-3,10,13-trimethyl-17-((2R,5R)-6,6,6-trifluoro-5-hydroxyhexan-2-yl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol 在
戴斯-马丁氧化剂 作用下,
以
二氯甲烷 为溶剂,
以4013.1 mg的产率得到(5R)-1,1,1-trifluoro-5-[(3S,8S,9S,10R,13R,14S,17R)-3-hydroxy-3,10,13-trimethyl-1,2,4,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl]hexan-2-one