2-C-hydroxymethyl-2,3-O-isopropylidene-2'-O-tertbutyldiphenylsilyl-D-erythrofuranose 、
(methoxycarbonylmethylene)tributylphosphorane 以
甲苯 为溶剂,
反应 48.0h,
以90%的产率得到(4R,5R,E)-methyl 4,5,6-trihydroxy-4-C-hydroxymethyl-4,5-O-isopropylidene-4'-O-tert-butyldiphenylsilylhex-2-enoate