[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][O][C][=C][C][=Branch1][O][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][O][O][C][C@H1][C@@H1][C][O][C@H1][Branch1][Branch2][C@@H1][Ring1][Branch1][C][O][Ring1][Branch2][C][=C][C][=Branch1][=C][=C][Branch1][=Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][O][C][O][C]"}, {"from": "gpt", "value": "The molecule is a lignan that consists of tetrahydro-1H,3H-furo[3,4-c]furan substituted by 3,4,5-trimethoxyphenyl and a 4-hydroxy-3,5-dimethoxyphenyl group at positions 4 and 1 respectively. It has been isolated from the stems of Sinocalamus affinis. It has a role as a plant metabolite. It is a lignan, a member of methoxybenzenes, a member of phenols and a furofuran."}]