[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is the conjugate base of L-5-carboxymethylhydantoin; major species at pH 7.3. It is a conjugate base of a L-5-carboxymethylhydantoin."}, {"from": "gpt", "value": "[C][Branch1][=C][C@H1][C][=Branch1][C][=O][N][C][=Branch1][C][=O][N][Ring1][#Branch1][C][=Branch1][C][=O][O-1]"}]