(4R,5R,E)-methyl 4,5,6-trihydroxy-4-C-hydroxymethyl-4,5-O-isopropylidene-4'-O-tert-butyldiphenylsilylhex-2-enoate 在
甲醇 、
sodium methylate 作用下,
反应 1.5h,
以99%的产率得到methyl 3,6-anhydro-2-deoxy-4-C-hydroxymethyl-4,5-O-isopropylidene-4'-O-tert-butyldiphenylsilyl-D-gluconate