[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a gallate ester obtained by formal condensation of the carboxy group of gallic acid with the (3S)-hydroxy group of procyanidin B4. It has a role as a metabolite. It is a gallate ester, a proanthocyanidin, a polyphenol and a biflavonoid. It is functionally related to a gallic acid and a procyanidin B4."}, {"from": "gpt", "value": "[C][C@H1][Branch2][Branch2][Ring2][C@H1][Branch2][#Branch1][C][O][C][=C][Ring1][=Branch1][C][=Branch2][=Branch1][Branch2][=C][C][=Branch2][=Branch1][C][=C][Ring1][=Branch1][C@H1][C@@H1][Branch2][Ring2][Ring2][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][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][O][C][=Branch1][C][=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]"}]