(4-S,4aR,5S,6R,7aS,7bS)-4,4a,5,6,7a,7b-hexahydro-6-iodomethyl-5-phenylmethoxy-2H-1,7-dioxacyclopent[cd]inden-4-ol benzoate 在
吡啶 、 silver fluoride 作用下,
以33%的产率得到(4S,4aR,5S,6R,7aS,7bS)-6-(benzoyloxy)methyl-4,4a,5,6,7a,7b-hexahydro-5-phenylmethoxy-2H-1,7-dioxacyclopent[cd]inden-4-ol benzoate