(1R,4S,5R,9S)-1-((R)-1,5-Dimethyl-hex-4-enyl)-9-hydroxy-4-hydroxymethyl-spiro[4.5]dec-7-ene-8-carboxylic acid methyl ester 在
吡啶 、 sodium iodide 、
锌 作用下,
以
乙二醇二甲醚 为溶剂,
反应 20.5h,
生成
(1R,4S,5S,9S)-1-((R)-1,5-Dimethyl-hex-4-enyl)-9-hydroxy-4-methyl-spiro[4.5]dec-7-ene-8-carboxylic acid methyl ester