[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][Branch2][Ring1][Branch1][C@H1][Branch1][P][C@H1][C@@H1][Branch1][Ring2][C][Ring1][=Branch1][O][C][=Branch1][C][=O][C][Ring1][#Branch1][=C][O][C@H1][Branch1][C][C][C][C][C][O][C][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a sesquiterpene lactone that is (3aS,4R,7aR)-3a,4,7,7a-tetrahydro-1-benzofuran-2(3H)-one with a methylidene at position C-3, a hydroxy at C-4, a methyl at C-6, and a (2S)-5-(acetyloxy)pentan-2-yl group at position C-5. A natural product found in Inula britannica var chinensis and Inula japonica. It has a role as a metabolite and an EC 1.14.13.39 (nitric oxide synthase) inhibitor. It is a sesquiterpene lactone, an acetate ester and an organic heterobicyclic compound."}]