醋酸叔丁酯 、
1-Methyl-5-[2-methylsulfanylmethoxy-eth-(Z)-ylidene]-7-oxa-bicyclo[4.1.0]heptane 生成 {(1R,2R)-2-Hydroxy-2-methyl-6-[2-methylsulfanylmethoxy-eth-(Z)-ylidene]-cyclohexyl}-acetic acid tert-butyl ester 、 {(1R,2R)-2-Hydroxy-2-methyl-6-[2-methylsulfanylmethoxy-eth-(E)-ylidene]-cyclohexyl}-acetic acid tert-butyl ester