3-环戊基-1-甲基-1H-吡唑-5-胺   、                                                                                      
2-[1-(2-Nitro-phenyl)-meth-(E)-ylidene]-3-oxo-butyric acid 2-(3,4-dimethoxy-phenyl)-ethyl ester                                                                                                                                                                                              以
                                                                                         
叔丁醇                                                                                  为溶剂,
                                                                                                                                                    反应 24.0h,
                                                                                                                以74.8%的产率得到3-Cyclopentyl-1,6-dimethyl-4-(2-nitro-phenyl)-4,7-dihydro-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid 2-(3,4-dimethoxy-phenyl)-ethyl ester; hydrochloride