[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a tetrahydroxyflavan in which the four hydroxy substituents are located at positions 4, 4', 5 and 7. It has a role as a metabolite."}, {"from": "gpt", "value": "[C][C@H1][Branch2][Ring1][Ring2][O][C][=C][C][=Branch1][=N][=C][C][=Branch1][Branch2][=C][Ring1][=Branch1][C][Ring1][#Branch2][O][O][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O]"}]