User: I'm searching for the SMILES of a molecule that can be described by:
The molecule is an amino acid zwitterion resulting from a transfer of a proton from the carboxy to the amino group of 4-oxo-L-proline; major species at pH 7.3. It is a tautomer of a 4-oxo-L-proline.
Assistant: This is a molecule that fits your description: O=C1C[NH2+][C@H](C(=O)[O-])C1
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
O=C1C[NH2+][C@H](C(=O)[O-])C1
(2S)-4-oxopyrrolidin-1-ium-2-carboxylate
The molecule is an amino acid zwitterion resulting from a transfer of a proton from the carboxy to the amino group of 4-oxo-L-proline; major species at pH 7.3. It is a tautomer of a 4-oxo-L-proline.