[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a steroid acid, a monocarboxylic acid and a 3-oxo-Delta(4) steroid. It is a conjugate acid of a canrenoate."}, {"from": "gpt", "value": "[C][C@][C][C][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][C][=C][C@@H1][C@@H1][Ring1][O][C][C][C@][Branch2][Ring1][Ring1][C@H1][Ring1][=Branch1][C][C][C@][Ring1][Branch1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O][O][C]"}]