User: I'm looking for the SMILES of a molecule that can be described by:
The molecule is the zwitterion formed from L-proline by proton transfer from the carboxy group to the ring nitrogen. It is the predominant species at physiological pH. It is a tautomer of a L-proline.
Assistant: This is a molecule that fits this description: O=C([O-])[C@@H]1CCC[NH2+]1
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#}
(2S)-pyrrolidin-1-ium-2-carboxylate
The molecule is the zwitterion formed from L-proline by proton transfer from the carboxy group to the ring nitrogen. It is the predominant species at physiological pH. It is a tautomer of a L-proline.