3-[4-amino-3-(1H-tetrazol-5-yl)-phenyl]-N,N-dimethyl-propionamide   、                                                                                      
4-氯-3-三氟甲基异氰酸苯酯                                                                                                                                                                                              以
                                                                                         
乙腈                                                                                  为溶剂,
                                                                                                                                                    反应 16.0h,
                                                                                                                以afforded 3-[4-[3-(4-chloro-3-trifluoromethyl-phenyl)-ureido]-3-(1H-tetrazol-5-yl)-phenyl]-N,N-dimethyl-propionamide的产率得到3-[4-[3-(4-chloro-3-trifluoromethyl-phenyl)-ureido]-3-(1H-tetrazol-5-yl)-phenyl]-N,N-dimethyl-propionamide