(2R,4aS,6S,7R,8R,8aR)-8-(benzyloxy)-2-(naphthalen-1-yl)-6-(phenylthio)hexahydropyrano[3,2-d][1,3]dioxin-7-ol 、
苯甲酰氯 以
吡啶 、
二氯甲烷 为溶剂,
以98%的产率得到[(2R,4aS,6S,7R,8S,8aR)-2-naphthalen-1-yl-8-phenylmethoxy-6-phenylsulfanyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-yl] benzoate