[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=Branch2][Branch1][#Branch1][=C][C][C][=C][Branch2][Ring2][=C][C][=C][Branch2][Ring2][Branch2][C][=C][Ring1][=Branch1][O][C@@H1][Branch1][=Branch1][C][C][Ring1][=Branch1][=O][C][=C][Branch2][Ring1][Branch1][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=C][C][Branch1][Ring2][O][Ring1][#Branch1][Branch1][C][C][C][O][O][O][C][C]"}, {"from": "gpt", "value": "The molecule is a dihydroxyflavanone that is (2S)-flavanone substituted by hydroxy groups at positions 5 and 2', a methoxy group at position 7, a prenyl group at position 8 and a 6,6-dimethyl-3,6-dihydro-2H-pyran ring fused across positions 4' and 5'. Isolated from the stem barks of Maackia amurensis, it exhibits cytotoxicity against human cancer cell lines. It has a role as a metabolite and an antineoplastic agent. It is a dihydroxyflavanone and a monomethoxyflavanone."}]