title: V-triazolo(4,5-d)pyrimidines (8-azapurines). X. New routes to V-triazolo(4,5-d)pyridimidines via 4-dimethylaminomethyleneamino-1,2,3-trizole-5-carbonitriles.
mesh_terms: D001372:Aza Compounds / Q000138:chemical synthesis; D006358:Hot Temperature; D008722:Methods; D008744:Methylamines; D008745:Methylation; D009570:Nitriles / Q000138:chemical synthesis*; D011687:Purines / Q000138:chemical synthesis*; D011743:Pyrimidines / Q000138:chemical synthesis*; D014230:Triazoles / Q000138:chemical synthesis*
chemical_list: D001372:Aza Compounds; D008744:Methylamines; D009570:Nitriles; D011687:Purines; D011743:Pyrimidines; D014230:Triazoles