4-<2-(4-Iodobutyl)-1,3-dioxolan-2-yl>-1-methylbutyl 2,4-Dimethoxy-6-(phenylthiomethyl)benzoate 在
sodium hexamethyldisilazane 作用下,
以
四氢呋喃 为溶剂,
反应 0.5h,
以85%的产率得到(4'S)-16',18'-dimethoxy-4'-methyl-13'-phenylsulfanylspiro[1,3-dioxolane-2,8'-3-oxabicyclo[12.4.0]octadeca-1(14),15,17-triene]-2'-one