名称:
                                Synthesis of Novel 3,7-Dihydro-purine-2,6-dione Derivatives
                             
                            
                                摘要:
                                Forty-six novel 3,7-dihydro-purine-2,6-dione derivatives (substituted xanthines) with great structural diversity were synthesized for biological activity screening. Three series of substituted xanthine analogs have been prepared in moderate to excellent yields.
                             
                                                            
                                    DOI:
                                    10.1080/00397910903097260