5-cyano-2-(cyclopropylmethoxy)benzoic acid   、                                                                                      2-(2-methylpyridin-4-yl)-2,4,5,6-tetrahydropyrrolo[3,4-c]pyrazole dihydrochloride                                                                                                                                                              在
                                                                                                                                                                                 
三乙胺   、                                                                                                  N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                    反应 5.0h,
                                                                                                                以26%的产率得到4-(cyclopropylmethoxy)-3-[2-(2-methylpyridin-4-yl)-2H,4H,5H,6H-pyrrolo[3,4-c]pyrazol-5-carbonyl]benzonitrile