methyl (2-O-benzoyl-3-O-benzyl-6-O-chloroacetyl-β-D-glucopyranosyl)-(1->4)-(2-acetamido-3,6-di-O-benzyl-2-deoxy-α-D-glucopyranoside)   、                                                                                      phenyl [tert-butyl (3,4-di-O-benzyl-2-O-benzoyl-β-D-glucopyranosyl)uronate]-(1->4)-(2-azido-3,6-di-O-benzyl-2-deoxy-1-thio-β-D-glucopyranoside)                                                                                                                                                              在
                                                                                                                                                                                 
2,6-二叔丁基-4-甲基吡啶   、                                                                                                  
DMTST                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醚   、                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以40%的产率得到methyl [tert-butyl (2-O-benzoyl-3,4-di-O-benzyl-β-D-glucopyranosyl)uronate]-(1->4)-(2-azido-3,6-di-O-benzyl-2-deoxy-α-D-glucopyranosyl)-(1->4)-(2-O-benzoyl-3-O-benzyl-6-O-chloroacetyl-β-D-glucopyranosyl)-(1->4)-(2-acetamido-3,6-di-O-benzyl-2-deoxy-α-D-glucopyranoside)