[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=Branch2][Ring2][C][=C][C][=C][Ring1][=Branch1][/C][=C][\\C][=Branch2][Ring1][=Branch1][=C][Branch1][Branch2][C][=Branch1][C][=O][O][/-Ring1][=Branch1][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][O]"}, {"from": "gpt", "value": "The molecule is a 4-hydroxy-5-(4-hydroxybenzylidene)-3-(4-hydroxyphenyl)furan-2(5H)-one in which the double bond adopts an E-configuration. It is a marine metabolite isolated from the fungus Aspergillus terreus and exhibits antiviral activity. It has a role as an antiviral agent, an Aspergillus metabolite, a marine metabolite and an EC 3.2.1.20 (alpha-glucosidase) inhibitor. It is an aspulvinone and a 4-hydroxy-5-(4-hydroxybenzylidene)-3-(4-hydroxyphenyl)furan-2(5H)-one. It is a conjugate acid of an isoaspulvinone E(1-)."}]