3-methoxy-2-pyridyl 2,3,4,6-tetra-O-benzyl-β-D-galactopyranoside   、                                                                                      
6-benzyloxycarbonylamino-1-hexanyl 4-O-acetyl-2,6-di-O-benzoyl-β-D-galactopyranoside                                                                                                                                                              在
                                                                                                                                                                                 copper(II) bis(trifluoromethanesulfonate)                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 48.0h,
                                                                                                                以51%的产率得到6-benzyloxycarbonylamino-1-hexanyl O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-(1-3)-4-O-acetyl-2,6-di-O-benzoyl-β-D-galactopyranoside