methyl 2,3-di-O-benzyl-1-chloro-1-deoxy-4-methyl-α,β-D-glucopyranuronate 、
methyl 3-O-benzyl-4-O-<2-O-benzyl-3,4-di-O-(2,3,4-tri-O-benzyl-β-D-xylopyranosyl)-β-D-xylopyranosyl>-β-D-xylopyranoside 在
silver perchlorate 、
三乙胺 作用下,
以
二氯甲烷 为溶剂,
以57.2%的产率得到methyl 3-O-benzyl-2-O-(methyl 2,3-di-O-benzyl-α-D-glucopyranosyluronate)-4-O-<2-O-benzyl-3,4-di-O-(2,3,4-tri-O-benzyl-β-D-xylopyranosyl)-β-D-xylopyranosyl>-β-D-xylopyranoside