[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a prostanoid."}, {"from": "gpt", "value": "[C][C][C][C][C][C@@H1][C@H1][Branch2][Ring1][O][C][C@H1][Branch2][Ring1][Branch1][C@H1][Ring1][Branch1][/C][=C][/C@@H1][Branch1][N][C][/C][=C][\\C][C][C][C][=Branch1][C][=O][O][O][O][O]"}]