Ethyl 2-(diethoxyphosphoryl)-5,6-epoxy-6-methylheptanoate 、
Ethyl (5E)-2-(diethoxyphosphoryl)-9,10-epoxy-6,10-dimethylundec-5-enoate 在
lithium diisopropyl amide 作用下,
以
四氢呋喃 为溶剂,
反应 7.25h,
生成 (2E,6E,10E)-14,15-Epoxy-7-ethoxycarbonyl-3,11,15-trimethyl-1-(tetrahydropyran-2-yl)hexadeca-2,6,10-triene 、 (2E,6Z,10E)-14,15-Epoxy-7-ethoxycarbonyl-3,11,15-trimethyl-1-(tetrahydropyran-2-yl)hexadeca-2,6,10-triene