[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a heterocyclic organic compound with a cage-like structure similar to adamantane. In salt form it is used for the treatment of urinary tract infection (Example: methenamine hippurate which is the hippuric acid salt of methenamine)."}, {"from": "gpt", "value": "[C][N][C][N][C][N][Ring1][=Branch1][C][N][Branch1][Ring2][C][Ring1][Branch2][C][Ring1][#Branch1]"}]