methyl (2S)-2-[[(2R)-2-[(2R,3S,4R,5R,6R)-5-acetamido-3-acetyloxy-2-(acetyloxymethyl)-6-phosphonooxyoxan-4-yl]oxypropanoyl]amino]propanoate   、                                                                                      
三乙胺                                                                                                                                                                                              以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        以261 mg的产率得到methyl (S)-2-(2-(R)-(2-acetamido-2-deoxy-4,6-di-O-acetyl-1-O-phosphoryl-3-α-D-glucopyranosyloxy)propanamido)propanoate triethylammonium salt