[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@@][C][C@H1][Branch2][=Branch1][Ring2][C@@H1][Branch2][Ring2][O][C@][Ring1][Branch1][Branch2][Ring2][Ring2][C][C][=Branch1][C][=O][C@@][Branch2][Ring1][#Branch2][C@H1][Ring1][#Branch2][C][C][=C][C@H1][Ring1][=Branch1][C][=C][Branch1][N][C][=Branch1][C][=O][C][Ring1][#Branch1][Branch1][C][C][C][O][C][C][C@][Branch1][C][C][Branch1][#C][C][=Branch1][C][=O][/C][=C][/C][Branch1][C][C][Branch1][C][C][O][O][O]"}, {"from": "gpt", "value": "The molecule is a cucurbitacin that is 9,10,14-trimethyl-4,9-cyclo-9,10-secocholesta-2,5,23-triene substituted by hydroxy groups at positions 2, 16, 20 and 25 and oxo groups at positions 1, 11 and 22. It has a role as a plant metabolite and an antineoplastic agent. It is a cucurbitacin and a tertiary alpha-hydroxy ketone."}]