title: Pyridopyrimidines. 6. Nucleophilic substitutions in pyrido[2,3-d]pyrimidine series1.
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis; D055598:Chemical Phenomena; D002621:Chemistry; D008722:Methods; D011743:Pyrimidines / Q000138:chemical synthesis*; D011744:Pyrimidinones / Q000138:chemical synthesis*; D014498:Uracil / Q000031:analogs & derivatives
chemical_list: D000970:Antineoplastic Agents; D011743:Pyrimidines; D011744:Pyrimidinones; D014498:Uracil