4-[1-(4-methoxy-phenyl)-3-methyl-7-oxo-1,4,5,7-tetrahydro-pyrazolo[3,4-c]pyridin-6-yl]-benzonitrile   、                                                                                      
二甲胺                                                                                                                                                              在
                                                                                                                                                                                 
盐酸   、                                                                                                  crude intermediate   、                                                                                                  
甲醇                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
chloroform methanol                                                                                  为溶剂,
                                                                                                                                                    反应 32.25h,
                                                                                                                以to yield 4-[1-(4-methoxy-phenyl)-3-methyl-7-oxo-1,4,5,7-tetrahydro-pyrazolo[3,4-c]pyridin-6-yl]-N,N-dimethyl-benzamidine (0.255 g, 71%)的产率得到4-[1-(4-methoxy-phenyl)-3-methyl-7-oxo-1,4,5,7-tetrahydro-pyrazolo[3,4-c]pyridin-6-yl]-N,N-dimethyl-benzamidine