(2R,4aR,6S,7R,8R,8aS)-2-Biphenyl-4-yl-6-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxine-7,8-diol 、
碘甲烷 在
sodium hydride 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 16.5h,
以92%的产率得到(2R,4aR,6S,7S,8R,8aR)-2-Biphenyl-4-yl-7,8-dimethoxy-6-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxine