methyl (4R,4aS,6aR,8S,9R,11aS,11bS)-4,8,11b-trimethyl-7-oxotetradecahydro-6a,9-methanocyclohepta[a]naphthalene-4-carboxylate 在
sodium tetrahydroborate 作用下,
以
四氢呋喃 、
乙醇 为溶剂,
生成 methyl (1R,4S,5R,9S,10S,13R,14S,15R)-15-hydroxy-5,9,14-trimethyltetracyclo[11.2.1.01,10.04,9]hexadecane-5-carboxylate