[(3R,3aS,5R,5aR,7R,9aR,9bS)-3-[(1S)-1-hydroxyethyl]-7,9b-dimethyl-2-oxo-3,3a,4,5,5a,6,7,8,9,9a-decahydro-1H-cyclopenta[a]naphthalen-5-yl] methanesulfonate 在
双(三甲基硅烷基)氨基钾 、
三乙胺 作用下,
以
四氢呋喃 、
二氯甲烷 为溶剂,
反应 2.5h,
生成 (3R,3aS,5R,5aR,7R,9aR,9bS)-3-((S)-1-((tert-butyldimethylsilyl)oxy)ethyl)-7,9b-dimethyl-5-((methylsulfonyl)oxy)-3a,4,5,5a,6,7,8,9,9a,9b-decahydro-3H-cyclopenta[a]naphthalen-2-yl trifluoromethanesulfonate