[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a biflavonoid obtained by coupling of 8,3'-dihydroxy-7,4',5'-trimethoxyflavan and 8-hydroxy-7,3',4',5'-tetramethoxyflavan resulting in a bond between C-5 positions of the two chromene rings. Isolated from Muntingia calabura, it exhibits antineoplastic activity. It has a role as a metabolite and an antineoplastic agent. It is a biflavonoid, a hydroxyflavan, a polyphenol, a methoxyflavan and a ring assembly."}, {"from": "gpt", "value": "[C][O][C][=C][C][=Branch1][O][=C][C][=Branch1][=Branch1][=C][Ring1][=Branch1][O][C][O][C@@H1][C][C][C][=C][Branch1][Ring2][O][Ring1][=Branch1][C][=Branch2][Branch1][Branch2][=C][Branch2][Branch1][C][C][=C][Ring1][#Branch1][C][=C][C][=Branch2][Ring2][=Branch1][=C][Branch2][Ring1][P][C][=C][Ring1][=Branch1][C][C][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][=C][C][=Branch1][=C][=C][Branch1][=Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][O][C][O][C][O][O][C][O][C][O]"}]