(Z)-4-((1S,2S,4R,4aS,5S,6R,7R,8aR,9S)-4,8a,9-Trihydroxy-2,5,7-trimethyl-decahydro-1,6-methano-naphthalen-2-yl)-but-2-enoic acid methyl ester 在
palladium on activated charcoal
氢气 、
N,N-二异丙基乙胺 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
生成
4-((1S,2S,4R,4aS,5S,6R,7R,8aR,9S)-8a-Hydroxy-4,9-bis-methoxymethoxy-2,5,7-trimethyl-decahydro-1,6-methano-naphthalen-2-yl)-butyric acid methyl ester