[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is adenine substituted with a methyl group at position N-9. It has a role as a metabolite."}, {"from": "gpt", "value": "[C][N][C][=N][C][=C][Branch1][=Branch2][N][=C][N][=C][Ring1][=Branch1][Ring1][=Branch2][N]"}]