名称:
                                Synthesis of pyridazinedione derivatives starting from anhydrides of 2,3-pyridine- and 2,3-quinolinedicarboxylic acids
                             
                            
                                摘要:
                                A method was developed of preparation of heterocyclic compounds with pyridopyridazinoisoquinalinedione and isoquinopyridazinoquinalinedione structures formed regioselectively by intramolecular cyclization of phosphorus ylides containing pyridopyridazinedione and pyridazinoquinolinedione fragments.
                             
                                                            
                                    DOI:
                                    10.1134/s1070428010050210