Acetic acid (3S,8S,9S,10R,13S,14S,17R)-17-((1R,4R)-4-ethyl-1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,7,8,9,10,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 在
sodium tetrahydroborate 、 jones reagent 作用下,
以
丙酮 为溶剂,
生成 (8S,9S,10R,13S,14S,17R)-17-((1R,4R)-4-Ethyl-1,5-dimethyl-hexyl)-10,13-dimethyl-1,2,4,7,8,9,10,13,14,15,16,17-dodecahydro-cyclopenta[a]phenanthren-3-one