[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a member of flavans."}, {"from": "gpt", "value": "[C][C][=Branch2][Ring2][Branch2][=C][C][C][=C][Branch2][Ring1][S][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C@@H1][C@H1][Branch2][Ring1][C][C][C][=C][Branch1][Ring2][O][Ring1][=Branch1][C][=C][Branch1][Branch1][C][=C][Ring1][#Branch1][O][O][O][C]"}]