3-((3S,3aS,5aS,6R,9aR,9bS)-7-Butyl-3-hydroxy-3a,6-dimethyl-2,3,3a,4,5,5a,6,9,9a,9b-decahydro-1H-cyclopenta[a]naphthalen-6-yl)-propionic acid methyl ester 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
生成 3-((3S,3aS,5aS,6R,7S,8R,9aR,9bS)-3-tert-Butoxy-7-butyl-8-hydroxy-3a,6-dimethyl-dodecahydro-cyclopenta[a]naphthalen-6-yl)-propionic acid methyl ester