2,3,6,2',3',4',6'-hepta-O-acetyl-isocyanato-β-D-lactose   、                                                                                      
对甲苯基硫脲                                                                                                                                                                                              以
                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以92.14%的产率得到(2R,3S,4S,5R,6S)-2-(acetoxymethyl)-6-(((2R,3R,4S,5R,6R)-4,5-diacetoxy-2-(acetoxymethyl)-6-(3-(p-tolylcarbamothioyl)ureido)tetrahydro-2H-pyran-3-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate