4-O-[(1R,4aS)-7-ethenyl-6,7-dihydroxy-4a-methyl-6-prop-2-enylspiro[1,2,3,5-tetrahydronaphthalene-4,2'-1,3-dioxolane]-1-yl] 1-O-ethyl (E)-but-2-enedioate 在
碘苯二乙酸 作用下,
以
乙腈 为溶剂,
生成 4-O-[(1'R,2'R,6'S,8'R)-10'-ethenyl-6'-methyl-8'-prop-2-enylspiro[1,3-dioxolane-2,5'-9,12-dioxatricyclo[6.3.1.01,6]dodec-10-ene]-2'-yl] 1-O-ethyl (E)-but-2-enedioate