title: [Electronic structure and tautometry of 8-azapurines].
mesh_terms: D000963:Antimetabolites; D000970:Antineoplastic Agents; D001375:Azaguanine; D055598:Chemical Phenomena; D002621:Chemistry; D004578:Electron Spin Resonance Spectroscopy; D007093:Imidazoles; D011687:Purines
chemical_list: D000963:Antimetabolites; D000970:Antineoplastic Agents; D007093:Imidazoles; D011687:Purines; D001375:Azaguanine
vernacular_title: Structure électronique et tautomérie des 8-azapurines.