title: V-triazolo(4,5-d)pyrimidines (8-azapurines). 8. Synthesis, from 1,2,3-triazoles, of 1- and 2-methyl derivatives of 5,7-disubstituted V-triazolo(4,5-d)pyrimidines (7- and 8-methyl 2,6-disubstituted 8-azapurines).
mesh_terms: D001372:Aza Compounds; D001375:Azaguanine; D008722:Methods; D008745:Methylation; D011687:Purines / Q000138:chemical synthesis*; D011743:Pyrimidines / Q000138:chemical synthesis*; D014230:Triazoles / Q000138:chemical synthesis*
chemical_list: D001372:Aza Compounds; D011687:Purines; D011743:Pyrimidines; D014230:Triazoles; D001375:Azaguanine