[{"from": "human", "value": "Please give me some details about this molecule. [C][C@@H1][C][=Branch1][C][=O][O][C][C@@H1][C@][Ring1][#Branch1][C][C][Branch1][=C][C][C@H1][Ring1][Branch1][C][=C][Ring1][Branch2][C][=Branch1][C][=O][O][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is a sesquiterpene lactone obtained by regioselective Bayer-Villiger oxidation of 1-deoxy-11-oxopentalenic acid. It has a role as a bacterial metabolite. It is a sesquiterpene lactone, an organic heterotricyclic compound and an alpha,beta-unsaturated monocarboxylic acid. It is a conjugate acid of a pentalenolactone D(1-)."}]