6-carbomethoxy-8-(3",3"-dimethylallyl)-3α-hydroxy-2α-methyl-2-(4'-methylpent-3'-enyl)-3,4-dihydrobenzopyran 在
palladium on activated charcoal
吡啶 、
氢气 作用下,
以
乙醇 为溶剂,
25.0 ℃
、101.33 kPa
条件下,
生成
(2R,3S)-3-Acetoxy-2-methyl-8-(3-methyl-butyl)-2-(4-methyl-pentyl)-chroman-6-carboxylic acid methyl ester