triethylammonium 3-(N-carbobenzyloxy)aminopropyl 1-O-(4-O-acetyl-2-azido-3,6-di-O-benzyl-2-deoxy-α-D-glucopyranosyl phosphate)                                                                                                                                                              在
                                                                                                                                                                                 
吡啶   、                                                                                                  
甲醇   、                                                                                                  
sodium methylate   、                                                                                                  
三甲基乙酰氯                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 bis-triethylammonium 3-(N-carbobenzyloxy)aminopropyl 1-O-[2-azido-3,6-di-O-benzyl-2-deoxy-α-D-glucopyranosyl phosphate 4-(2-azido-3-O-benzyl-4,6-O-benzylidene-2-deoxy-α-D-glucopyranosyl phosphate)]