[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][=Branch1][C][=O][C][=N][C][=C][Branch1][Branch1][N][C][Ring1][=Branch1][N][=C][Branch1][=Branch1][N][C][Ring1][Branch2][=O][N]"}, {"from": "gpt", "value": "The molecule is a member of pterins."}]