methyl (-)-(4R,4aS,6aR,10S,12aR,12bS)-8-bromo-9-oxo-4,10,12b-trimethyltetradecahydro-1H-6a,10-methanocycloocta[a]naphthalene-4-carboxylate 在
sodium hydroxide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 5.0h,
以69%的产率得到methyl (+)-(4R,4aS,6aR,10S,12aR,12bS)-8-hydroxy-9-oxo-4,10,12b-trimethyltetradecahydro-1H-7,8-en-6a,10-methanocycloocta[a]naphthalene-4-carboxylate