[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][C][=Branch1][C][=O][C@H1][Branch2][=Branch1][C][C@][Branch2][Branch1][=N][C@H1][Ring1][#Branch1][C][C@@H1][C@][C@@H1][Ring1][=Branch1][C@H1][Branch2][Ring2][#C][C@@H1][Branch2][Ring2][#Branch2][C@][Branch2][Ring1][=Branch2][C@@H1][Ring1][=Branch1][C@H1][Branch1][Branch2][C][=Branch1][C][=O][O][Ring1][O][O][C][=Branch1][C][=O][C][C][Branch1][C][C][C][Branch1][=Branch1][O][C][Ring2][Ring1][Ring1][C][=Branch1][C][=O][O][C][O][O][C][O]"}, {"from": "gpt", "value": "The molecule is a quassinoid consisting of a heteropentacyclic skeleton containing a delta-lactone moiety which is substituted at the alpha-carbon by a 3-methylbutanoyloxy group. It has a role as a metabolite and an antineoplastic agent. It is a delta-lactone, a cyclic ether, an enoate ester, an enone, an organic heteropentacyclic compound, a quassinoid, a triol, a methyl ester and a secondary alpha-hydroxy ketone."}]