[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a prostanoid."}, {"from": "gpt", "value": "[C][C@@H1][Branch2][Ring2][#Branch2][C@@H1][Branch2][Ring1][O][C@H1][Branch1][Branch1][C@@H1][Ring1][Branch1][O][/C][=C][/C@H1][Branch1][=C][C][O][C][=C][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][Cl][O][C][/C][=C][\\C][C][C][C][=Branch1][C][=O][O][O]"}]