(3S,5S,9R,10R,13R,14R,17R)-17-((R)-1,5-Dimethyl-hexyl)-3-methoxymethoxy-4,4,10,13-tetramethyl-2,3,4,5,6,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene 在
间氯过氧苯甲酸 作用下,
生成
(3S,5S,7R,8S,9R,10S,13R,14R,17R)-17-((R)-1,5-Dimethyl-hexyl)-3-methoxymethoxy-4,4,10,13-tetramethyl-hexadecahydro-20-oxa-cyclopropa[7,8]cyclopenta[a]phenanthrene