[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a lignan with a dibenzocyclooctadiene skeleton isolated from Kadsura ananosma It has a role as a plant metabolite. It is an acetate ester, an aromatic ether, a lignan, an organic heterotetracyclic compound and an oxacycle. It is functionally related to an isovaleric acid."}, {"from": "gpt", "value": "[C][C][C][Branch1][C][C][C][=Branch1][C][=O][O][C@@H1][C@@H1][Branch2][Branch1][N][C@@H1][Branch2][Branch1][#Branch1][C@H1][Branch2][Ring2][=N][C][=C][C][=Branch2][Ring2][Branch1][=C][Branch2][Ring1][#C][C][=Branch2][Ring1][=Branch2][=C][Ring1][=Branch1][C][=C][Branch1][S][C][=C][Branch1][#Branch1][C][=C][Ring1][S][Ring1][=Branch1][O][C][O][Ring1][#Branch1][O][C][O][C][O][C][O][C][O][C][=Branch1][C][=O][C][C][C]"}]