[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a prostaglandins I. It is functionally related to a prostaglandin I2. It is a conjugate acid of a 15-dehydro-prostaglandin I2(1-)."}, {"from": "gpt", "value": "[C][C][C][C][C][C][=Branch1][C][=O][/C][=C][/C@H1][C@@H1][Branch2][Ring1][=Branch1][C][C@H1][C@@H1][Ring1][Branch1][C][/C][=Branch1][#Branch2][=C][/C][C][C][C][=Branch1][C][=O][O][/O][Ring1][N][O]"}]