(E)-苯基-N-(2-吡啶磺酰基)甲亚胺   、                                                                                      
(+/-)-2,4,6-trimethylphenyl 2-isocyanopropionate                                                                                                                                                              在
                                                                                                                                                                                 
N-[3,5-双(三氟甲基)苯基]-N'-[(8a,9S)-6'-甲氧基-9-金鸡宁]硫脲                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 0.5h,
                                                                                                                生成                                                 2,4,6-trimethylphenyl 4-methyl-5-phenyl-1-(2-pyridinesulfonyl)-4,5-dihydro-1H-4-imidazolecarboxylate   、                                                                                             
2,4,6-trimethylphenyl 4-methyl-5-phenyl-1-(2-pyridinesulfonyl)-4,5-dihydro-1H-4-imidazolecarboxylate