(3S,4S,5R,8S,9S,10R,13R,14S,17R)-17-((R)-1,5-Dimethyl-hexyl)-10,13-dimethyl-4-(2-methyl-cyclohex-1-enylethynyl)-hexadecahydro-cyclopenta[a]phenanthrene-3,4-diol 在
Pd-Pb-CaCO
3 (Lindlar catalyst)
氢气 作用下,
以
喹啉 、
丁酮 、 Petroleum ether 为溶剂,
生成 (5R,8S,9S,10R,13R,14S,17R)-17-((R)-1,5-Dimethyl-hexyl)-10,13-dimethyl-4-[(Z)-2-(2-methyl-cyclohex-1-enyl)-vinyl]-2,5,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene