4-O-(2,3,4-tetra-O-acetyl-β-D-glucopyranosyl)-2,3,6-tri-O-benzyl-N-benzyloxycarbonyl-1,5-dideoxy-1,5-imino-D-glucitol 在
sodium methylate 作用下,
以
甲醇 为溶剂,
以98%的产率得到2,3,6-tri-O-benzyl-N-benzyloxycarbonyl-1,5-dideoxy-4-O-β-D-glucopyranosyl-1,5-imino-D-glucitol