SMILES: CC1=CC(=O)[C@H]([C@]2([C@H]1C[C@@H]3[C@]45[C@@H]2[C@H]([C@@H]([C@]([C@@H]4[C@H](C(=O)O3)OC(=O)CC(C)C)(OC5)C(=O)OC)O)O)C)O
Description: 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.