(Z)-2-Methyl-but-2-enoic acid 2-((2S,4aS,8S,8aR)-8,8a-dimethyl-4-oxo-decahydro-naphthalen-2-yl)-allyl ester 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
生成 (Z)-2-Methyl-but-2-enoic acid 2-((2S,4R,4aS,8S,8aR)-4-hydroxy-8,8a-dimethyl-decahydro-naphthalen-2-yl)-allyl ester