User: I'm looking for the SMILES of a molecule that can be described as:
The molecule is a dipeptide zwitterion obtained by transfer of a proton from the carboxy to the amino terminus of Pro-Hyp. Major species at pH 7.3. It has a role as a human metabolite and a biomarker. It is a tautomer of a Pro-Hyp.
Assistant: This is a molecule that fits your description: O=C([O-])[C@@H]1C[C@@H](O)CN1C(=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#}
O=C([O-])[C@@H]1C[C@@H](O)CN1C(=O)[C@@H]1CCC[NH2+]1
C1C[C@H]([NH2+]C1)C(=O)N2C[C@@H](C[C@H]2C(=O)[O-])O
(2S,4R)-4-hydroxy-1-[(2S)-pyrrolidin-1-ium-2-carbonyl]pyrrolidine-2-carboxylate
The molecule is a dipeptide zwitterion obtained by transfer of a proton from the carboxy to the amino terminus of Pro-Hyp. Major species at pH 7.3. It has a role as a human metabolite and a biomarker. It is a tautomer of a Pro-Hyp.