[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch2][Ring2][O][C][=C][C][=C][Branch1][Ring2][O][Ring1][=Branch1][C][=C][Branch2][Ring1][N][C][=C][Ring1][#Branch1][O][C][=Branch1][=Branch1][=C][C][Ring1][=Branch1][=O][C][=C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][O][C]"}, {"from": "gpt", "value": "The molecule is an extended flavonoid that is 4H,8H-pyrano[2,3-f]chromen-4-one substituted by a 3,4-dihydroxyphenyl group at position 2, hydroxy group at position 5 and geminal methyl groups at position 8. It is isolated from the roots of Artocarpus chama and exhibits cytotoxicity against a panel of human tumour cell lines like breast adenocarcinoma, ovarian carcinoma, ileocecal carcinoma and melanoma. It has a role as a metabolite and an antineoplastic agent. It is a trihydroxyflavone, an extended flavonoid and a pyranochromane."}]