4-bromobutyl (4R,4aS,6aR,9S,11aR,11bS)-4,9,11b-trimethyl-8-oxotetradecahydro 6a,9-methanocyclohepta[a]naphthalene-4-carboxylate 在
silver nitrate 作用下,
以
乙腈 为溶剂,
以94%的产率得到4-(nitrooxy)butyl (4R,4aS,6aR,9S,11aR,11bS)-4,9,11b-trimethyl-8-oxotetradecahydro-6a,9-methanocyclohepta[a]naphthalene-4-carboxylate