title: Synthesis and reactions of 7,8-dihydro-8-methylpterin and 9-methylguanine 7-oxide.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D006147:Guanine / Q000031:analogs & derivatives*; D006900:Hydroxylation; D008722:Methods; D008745:Methylation; D011622:Pterins / Q000138:chemical synthesis*
chemical_list: D011622:Pterins; D006147:Guanine