[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a proanthocyanidin consisting of (-)-epigallocatechin and (+)-catechin units joined by a (4alpha->6)-linkage. It has a role as a metabolite. It is a hydroxyflavan, a proanthocyanidin, a biflavonoid and a polyphenol. It is functionally related to a (-)-epigallocatechin and a (+)-catechin."}, {"from": "gpt", "value": "[C][C@@H1][Branch2][#Branch1][Ring1][C@H1][Branch2][Branch1][P][O][C][=C][Ring1][=Branch1][C][=Branch2][Branch1][#Branch1][=C][Branch1][Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][Ring2][#Branch1][C@H1][Branch2][Ring1][C][O][C][=C][C][=Branch1][O][=C][C][=Branch1][=Branch1][=C][Ring1][#Branch2][Ring1][=Branch1][O][O][C][=C][C][=Branch1][N][=C][Branch1][Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][O][O][O][O][C][=C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][O]"}]