7-((tert-butyldimethylsilyl)oxy)-2-methyl-3-(2-phenylpropan-2-yl)hept-1-en-4-yn-3-ol 、 O-ethyl [2-[(8S,9R,10S,11S,13S,14S,17R)-9-fluoro-11,17-dihydroxy-10,13-dimethyl-3-oxo-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl]sulfanylmethanethioate 在
过氧化双月桂酰 作用下,
以
2,2,2-三氟乙醇 、
1,2-二氯乙烷 为溶剂,
反应 7.0h,
以60%的产率得到9-((tert-butyldimethylsilyl)oxy)-1-((8S,9R,10S,11S,13S,14S,17R)-9-fluoro-11,17-dihydroxy-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-4-methylnon-6-yne-1,5-dione