[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=C][C][=Branch2][Ring1][=Branch2][=C][C][=Branch2][Ring1][Ring1][=C][Ring1][=Branch1][C][C@@H1][C][C][=Branch1][C][=O][O][C][Ring1][=Branch1][Branch1][C][C][C][C][O]"}, {"from": "gpt", "value": "The molecule is a sesquiterpene lactone that is butan-4-olide substituted by geminal methyl groups at position 5 and a 4-hydroxy-2,6-dimethylbenzyl group at position 4. Isolated from Solanum lyratum, it exhibits cytotoxicity against human cancer cell lines. It has a role as a metabolite and an antineoplastic agent. It is a butan-4-olide, a member of phenols and a sesquiterpene lactone."}]