[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][=C][Branch2][Branch1][=N][C][=C][Branch2][Ring2][=Branch1][C][=C][Ring1][=Branch1][O][C][=C][Branch1][=Branch2][C@H1][Ring1][=Branch1][C][Branch1][C][C][C][C][=Branch1][C][=O][C][Branch1][#Branch2][C][=Branch1][Branch1][=C][Ring1][O][C][O][C][Branch1][C][C][C][O][C@@H1][Branch1][#Branch1][C][C][Ring2][Ring1][=Branch2][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is an organic heterotetracyclic compound that is 2,3,10,12-tetrahydro-4H,11H-pyrano[2,3-a]xanthene-4,11-dione substituted by methyl groups at positions 6, 8, 10, and 10, and by hydroxy, isopropyl, methoxy, phenyl, and groups at positions 5, 12, 9, and 2, respectively (the S,S-enantiomer). It is isolated from the leaves of Baeckea frutescens and exhibits cytotoxicity against leukemia cells. It has a role as a metabolite and an antineoplastic agent. It is an organic heterotetracyclic compound, an extended flavonoid, a member of phenols and an ether."}]