[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. Analog of prostaglandin F2 alpha."}, {"from": "gpt", "value": "[C][C][C][C][C][C@][Branch1][C][C][Branch2][Ring1][=N][/C][=C][/C@H1][C@@H1][Branch2][Ring1][Branch1][C][C@@H1][Branch1][S][C@@H1][Ring1][Branch1][C][C][=C][=C][C][C][C][=Branch1][C][=O][O][C][O][O][O]"}]