Ethyl 1-Ethyl-1,2,3,4-tetrahydro-5,6-dimethyl-7-(4-methyl-1-piperazinyl)-4-oxo-6H-pyrrolo<3,4-b>pyridine-3-carboxylate                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
乙醇   、                                                                                                  
环己烯                                                                                                                                  作用下,
                                                                                                                                                                                        反应 2.5h,
                                                                                                                以30%的产率得到Ethyl 1-Ethyl-5,6-dimethyl-7-(4-methyl-1-piperazinyl)-1,4-dihydro-4-oxo-6H-pyrrolo<3,4-b>pyridine-3-carboxylate