[{"from": "human", "value": "Provide a brief overview of this molecule. [C][O][C][=C][C][=Branch1][O][=C][C][=Branch1][=Branch1][=C][Ring1][=Branch1][O][C][O][C][C@@H1][C@H1][Branch1][#Branch1][C][O][C][Ring1][Branch1][=O][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][O][Ring1][#Branch1]"}, {"from": "gpt", "value": "The molecule is a butan-4-olide that is (-)-bursehernin bearing an additional hydroxy substituent at position 5 (adjacent to the two methoxy groups). It has a role as a plant metabolite. It is a member of benzodioxoles, a butan-4-olide, a lignan, a dimethoxybenzene and a member of phenols. It is functionally related to a (-)-bursehernin."}]