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