1-ethoxycarbonylmethyl-6-oxo-1,6-dihydro-pyridine-3-carbonyl chloride   、                                                                                      
6-(3-pyridin-3-yl-5-trifluoromethyl-pyrazol-1-yl)-pyridin-3-ylamine                                                                                                                                                              在
                                                                                                                                                                                 
乙酸乙酯   、                                                                                                  
水   、                                                                                                  
碳酸氢钠   、                                                                                                  
氯化铵   、                                                                                                  
magnesium sulfate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
吡啶                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以to afford {2-oxo-5-[6-(3-pyridin-3-yl-5-trifluoromethyl-pyrazol-1-yl)-pyridin-3-ylcarbamoyl]-2H-pyridin-1-yl}-acetic acid ethyl ester (521 mg, 62%)的产率得到{2-oxo-5-[6-(3-pyridin-3-yl-5-trifluoromethyl-pyrazol-1-yl)-pyridin-3-ylcarbamoyl]-2H-pyridin-1-yl}-acetic acid ethyl ester