Acetic acid (3S,10S,13R,14S)-17-((R)-1,5-dimethyl-hex-4-enyl)-4,4,10,13-tetramethyl-14-vinyl-2,3,4,5,6,7,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 在
间氯过氧苯甲酸 作用下,
以
二氯甲烷 为溶剂,
以93%的产率得到Acetic acid (3S,10S,13R,14S)-17-[(R)-3-(3,3-dimethyl-oxiranyl)-1-methyl-propyl]-4,4,10,13-tetramethyl-14-vinyl-2,3,4,5,6,7,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester