[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is used to treat low blood sodium levels (hyponatremia) associated with various conditions like congestive heart failure, cirrhosis, and syndrome of inappropriate antidiuretic hormones (SIADH). FDA approved on May 19, 2009."}, {"from": "gpt", "value": "[C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C][=C][C][=Branch2][Ring1][P][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C][C][C][C@H1][Branch1][=C][C][=C][Ring1][#Branch1][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][Cl][O][C]"}]