[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][C][=C][Branch1][#Branch2][C][=Branch1][C][=O][O][C][Ring1][=Branch1][O][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a butenolide that is furan-2(5H)-one which is substituted by a phenyl group at position 3, a benzyl group at position 4, and a hydroxy group at position 5 (the (-)-enantiomer). A secondary metabolite obtained from Aspergillus nidulans. It has a role as an Aspergillus metabolite. It is a butenolide and a cyclic acetal."}]