[{"from": "human", "value": "Describe this molecule. [C][C][C@H1][Branch1][C][C][C][=Branch1][C][=O][O][C@H1][C][C][C@@H1][Branch2][Ring2][C][C@@][Branch2][Ring1][=N][C@H1][Ring1][=Branch1][C@H1][Branch1][P][C@@][Branch1][Ring2][C][Ring1][Branch1][C][=Branch1][C][=C][C][O][C][Ring1][#Branch1][=O][O][C][=Branch1][C][=O][C][C][C]"}, {"from": "gpt", "value": "The molecule is a sesquiterpene lactone that is (3R,3a'R)-decahydrospiro[furan-3,2'-indene] carrying an oxo, methylene, acetoxy, [(2S)-2-methylbutanoyl]oxy, methyl and methyl groups at positions 2, 4, 3', 4', 7' and 7a', respectively. It has a role as a plant metabolite. It is a gamma-lactone, an acetate ester, a sesquiterpene lactone and an oxaspiro compound."}]