(3S,4R,5R,8S,9S,10R,13R,14S,17R)-17-((1R,4S)-4-Ethyl-1,5-dimethyl-hexyl)-3-methoxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-4-ol 在
chromium(VI) oxide 、
硫酸 作用下,
生成 (3S,5R,8S,9S,10R,13R,14S,17R)-17-((1R,4S)-4-Ethyl-1,5-dimethyl-hexyl)-3-methoxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-4-one