title: v-Triazolo(4,5-d)pyrimidines (8-azapurines). Part XVII. Preparation of 1,6-dihydro-8-azapurines by heating 4-amino-5-aminomethyl-n-alkyl-1,2,3-triazoles with orthoesters or amidines.
mesh_terms: D000578:Amidines; D001372:Aza Compounds / Q000138:chemical synthesis; D006358:Hot Temperature; D008722:Methods; D011687:Purines / Q000138:chemical synthesis*; D014230:Triazoles
chemical_list: D000578:Amidines; D001372:Aza Compounds; D011687:Purines; D014230:Triazoles