[{"from": "human", "value": "Describe this molecule. [C][/C][=C][Branch1][C][\\C][/C][=Branch1][C][=O][O][C@H1][C][C][=Branch2][Ring1][P][=C][C][=Branch1][C][=O][C][C@H1][Branch2][Ring1][=Branch1][C@@][Ring1][=Branch1][Branch1][S][C@@H1][C@@H1][Ring1][O][C][=Branch1][C][=C][C][=Branch1][C][=O][O][Ring1][#Branch1][O][C][C]"}, {"from": "gpt", "value": "The molecule is a guaiane sesquiterpenoid isolated from Elephantopus mollis and has been shown to exhibit cytotoxic activity. It has a role as a metabolite and an antineoplastic agent. It is a guaiane sesquiterpenoid, a gamma-lactone, an enoate ester, an organic heterotricyclic compound and a tertiary alcohol. It is functionally related to a tiglic acid."}]