4-nitrophenyl 2-acetamido-2-deoxy-4,6-O-(4-methoxybenzylidene)-β-D-glucopyranoside   、                                                                                      
3-O-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-α-D-glucopyranosyl)-2,4,6-tri-O-acetyl-β-D-galactopyranosyl bromide                                                                                                                                                              在
                                                                                                                                                                                 
氰化汞                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
硝基甲烷   、                                                                                         
苯                                                                                  为溶剂,
                                                                                                                                                    反应 6.0h,
                                                                                                                以67%的产率得到4-nitrophenyl O-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosyl)-(1->3)-O-(2,4,6-tri-O-acetyl-β-D-galactopyranosyl)-(1->3)-2-acetamido-2-deoxy-4,6-O-(4-methoxybenzylidene)-β-D-glucopyranoside