(Z)-(R)-5-[(3S,5S,8R,9S,10S,13R,14S,17R)-17-((R)-1,5-Dimethyl-hexyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yl]-4-hydroxy-pent-2-enoic acid ethyl ester 在
四氧化锇 、 lithium aluminium tetrahydride 、 sodium hydride 作用下,
以
四氢呋喃 、
吡啶 、
乙醚 为溶剂,
生成 [(2S,3R,4R)-2,3,4-triacetyloxy-5-[(3S,5S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl]pentyl] acetate