title: Synthesis of imidazo[4,5-b]pyridines and V-triazolo[4,5-b]pyridines. Preparation of 1-deaza-6-thioguanine analogues.
mesh_terms: D008722:Methods; D013866:Thioguanine / Q000031:analogs & derivatives* / Q000138:chemical synthesis
chemical_list: C013467:1-deaza-6-thioguanine; D013866:Thioguanine