2-{(3S,9S,10R,13R,14R)-17-[(R)-3-Benzenesulfonyl-1-methyl-4-((R)-2,2,4-trimethyl-[1,3]dioxolan-4-yl)-butyl]-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yloxy}-tetrahydro-pyran 在
氧气 作用下,
生成
(R)-4-[(3S,9S,10R,13R,14R)-10,13-Dimethyl-3-(tetrahydro-pyran-2-yloxy)-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]-1-((R)-2,2,4-trimethyl-[1,3]dioxolan-4-yl)-pentan-2-one