[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a lignan isolated from the stems of Sinocalamus affinis. It has a role as a plant metabolite. It is a lignan, a dimethoxybenzene, a polyphenol, an aromatic ketone and a primary alcohol."}, {"from": "gpt", "value": "[C][O][C][=C][C][=Branch1][O][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][O][O][C][C@@H1][C@H1][Branch2][Ring1][#C][C@@H1][Branch1][Branch1][C][O][Ring1][Branch1][C][=Branch1][C][=O][C][=C][C][=Branch1][=N][=C][Branch1][=Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][O][O][C][C][O]"}]