(3R,5S,6R,8S,9S,10R,13R,14S,17R)-17-((R)-4-Hydroxy-1,4-dimethyl-pentyl)-6,10,13-trimethyl-hexadecahydro-cyclopenta[a]phenanthrene-3,6-diol 在
吡啶 、
chromium(VI) oxide 、
三氯氧磷 作用下,
生成 (5S,6R,8S,9S,10R,13R,14S,17R)-17-((R)-1,4-Dimethyl-pent-3-enyl)-6-hydroxy-6,10,13-trimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-one