[{"from": "human", "value": "Describe this molecule. [C][C][=C][C][=Branch1][C][=O][O][C@H1][Ring1][#Branch1][C][C@@H1][C][C][=Branch1][C][=O][C][=C][Branch1][Ring2][O][Ring1][#Branch1][/C][=C][/C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a pyranone isolated from the trunk barks of Cryptocarya obovata and has been shown to exhibit cytotoxicity against the KB cell line. It has a role as an antineoplastic agent and a plant metabolite. It is a member of 2-pyranones and a member of 4-pyranones."}]