[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][Branch2][Branch1][P][C][=Branch1][C][=O][C][C@][Branch2][Branch1][#Branch1][C@H1][Ring1][#Branch1][C][C@@H1][C@][C@@H1][Ring1][=Branch1][C@H1][Branch2][Ring2][=Branch2][C@@H1][Branch2][Ring2][Ring2][C@@][Branch2][Ring1][Ring2][C@@H1][Ring1][=Branch1][C@H1][Branch1][Branch2][C][=Branch1][C][=O][O][Ring1][O][O][C][=Branch1][C][=O][C][Branch1][Branch1][O][C][Ring1][S][C][=Branch1][C][=O][O][C][O][O][C][O]"}, {"from": "gpt", "value": "The molecule is a quassinoid that is the 15-O-acetyl derivative of bruceolide. It has been isolated from Brucea javanica and Brucea sumatrana. It has a role as a plant metabolite and an antifeedant. It is a quassinoid, a delta-lactone, a cyclic ether, an enol, an enone, a methyl ester, an acetate ester, an organic heteropentacyclic compound and a triol. It is functionally related to a bruceolide."}]