5-[(1S,3aS,4R,7aS)-1-(tert-Butyl-dimethyl-silanyloxy)-7a-methyl-6-oxo-octahydro-inden-4-yl]-pentane-2,3-dione 在
sodium hydroxide 作用下,
以
乙醇 为溶剂,
反应 0.33h,
以59%的产率得到(3S,3aS,9aS,9bS)-3-(tert-Butyl-dimethyl-silanyloxy)-3a,6-dimethyl-2,3,3a,4,8,9,9a,9b-octahydro-1H-cyclopenta[a]naphthalene-5,7-dione