乙酸酐   、                                                                                      
benzyl 2-amino-2-deoxy-β-D-glucopyranosyl-(1->3)-[2-amino-2-deoxy-β-D-glucopyranosyl-(1->4)]-2-acetamido-6-O-benzyl-2-deoxy-α-D-glucopyranoside                                                                                                                                                              在
                                                                                                                                                                                 
吡啶                                                                                                                                  作用下,
                                                                                                                                                                                        反应 20.0h,
                                                                                                                以250 mg的产率得到benzyl 2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosyl-(1->3)-[2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosyl-(1->4)]-2-acetamido-6-O-benzyl-2-deoxy-α-D-glucopyranoside