三氯乙腈   、                                                                                      
2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-[2,3,4,6-tetra-O-acetyl)-β-D-glucopyranosyl-(1->6)]-3-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranose                                                                                                                                                              在
                                                                                                                                                                                 
1,8-二氮杂双环[5.4.0]十一碳-7-烯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以79%的产率得到2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-[2,3,4,6-tetra-O-acetyl)-β-D-glucopyranosyl-(1->6)]-3-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl trichloroacetimidate