title: Pyrimido(5,4-e)-as-triazines. VII. Synthesis of 7-aza analogs of pteroic and folic acids.
mesh_terms: D001372:Aza Compounds / Q000138:chemical synthesis; D005492:Folic Acid / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D011622:Pterins / Q000138:chemical synthesis*; D011743:Pyrimidines / Q000138:chemical synthesis; D014227:Triazines / Q000138:chemical synthesis
chemical_list: D001372:Aza Compounds; D011622:Pterins; D011743:Pyrimidines; D014227:Triazines; D005492:Folic Acid