ethyl p-<3,6-di-O-acetyl-2-(tert-butoxycarbonyl)amino-2-deoxy-4-O-p-tolylsulfonyl-α-D-galactopyranosyloxy>cinnamate                                                                                                                                                              在
                                                                                                                                                                                 sodium azide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
六甲基磷酰三胺                                                                                  为溶剂,
                                                                                                                                                    反应 15.0h,
                                                                                                                以60%的产率得到ethyl p-<3,6-di-O-acetyl-4-azido-2-(tert-butoxycarbonyl)amino-2,4-dideoxy-α-D-glucopyranosyloxy>cinnamate