[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][O][C][=Branch1][C][=O][C][C][C][=Branch1][C][=O][C][=C][Branch1][#Branch2][C][=Branch1][C][=C][O][C][Ring1][=Branch1][=O][O]"}, {"from": "gpt", "value": "The molecule is a butenolide that is the methyl ester of 4-(4-hydroxy-5-methylidene-2-oxo-2,5-dihydrofuran-3-yl)-4-oxobutanoic acid It has a role as an Aspergillus metabolite. It is a butenolide, a methyl ester, an enol, an enone, an olefinic compound and a polyketide."}]