| 6-甲基-4-氧代-6,7,8,9-四氢吡啶并[1,6-a]嘧啶-3-羧酸乙酯 | 6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid ethyl ester | 32092-14-1 | C12H16N2O3 | 236.271 | 
                                                                                                                                            
                                        | —— | 6-methyl-4-oxo-9-(3-phenyl-allylidene)-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid ethyl ester | 93922-77-1 | C21H22N2O3 | 350.417 | 
                                                                                                                                            
                                        | —— | Ethyl 9-benzylidene-6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido<1,2-a>pyrimidine-3-carboxylate | 93922-74-8 | C19H20N2O3 | 324.379 | 
                                                                                                                                            
                                        | —— | 9-[1-Benzo[1,3]dioxol-5-yl-meth-(E)-ylidene]-6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid ethyl ester | 93922-75-9 | C20H20N2O5 | 368.389 |