溴乙酸叔丁酯 、
1H-Indene-1-ethanol, 4-[[3,5-bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2-methylenecyclohexylidene]ethylidene]octahydro-β,7a-dimethyl-, [1R-[1α(R*),3aβ,4E(1Z,3S*,5R*),7aα]]- (9CI) 在
sodium hydroxide 、
四丁基硫酸氢铵 作用下,
以
甲苯 为溶剂,
以60%的产率得到((S)-2-{(R)-4-[2-[(3S,5R)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methylene-cyclohex-(E)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl}-propoxy)-acetic acid tert-butyl ester