[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a polycyclic cage attached to a 2-carboxyethyl side chain. It is isolated from Streptomyces platensis. It has a role as a metabolite. It is a cyclic ketone, a monocarboxylic acid, a cyclic ether and a polycyclic cage."}, {"from": "gpt", "value": "[C][C@][C][C@][C][C@H1][Ring1][Branch1][C][C@@H1][Branch2][Ring1][=Branch2][C@H1][Ring1][=Branch1][C@][Branch1][=Branch2][C][=Branch1][C][=O][C][=C][Ring1][O][Branch1][C][C][C][C][C][=Branch1][C][=O][O][O][Ring2][Ring1][Ring2]"}]