[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=C][C][=Branch1][C][=O][O][C][Ring1][=Branch1][=C][C][Branch1][Ring2][O][Ring1][#Branch2][O]"}, {"from": "gpt", "value": "The molecule is a furopyran and lactone that is (2H-pyran-3(6H)-ylidene)acetic acid which is substituted by hydroxy groups at positions 4 an 6 and in which the hydroxy group at position 4 has condensed with the carboxy group to give the corresponding bicyclic lactone. Also known as neopatulin, it is a mycotoxic substance produced by Aspergillus and Penicillium species. It has a role as a mycotoxin, an antibacterial agent and a Penicillium metabolite. It is a gamma-lactone, a furopyran and a lactol."}]