Task: Please generate a SMILES based on the text description below.
Description: The molecule is an amino acid zwitterion obtained from 4-oxoproline by transfer of a proton from the alpha-carboxy group to the amino group; major species at pH 7.3. It is a tautomer of a 4-oxoproline.
Result: O=C1C[NH2+]C(C(=O)[O-])C1
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
4-oxopyrrolidin-1-ium-2-carboxylate
The molecule is an amino acid zwitterion obtained from 4-oxoproline by transfer of a proton from the alpha-carboxy group to the amino group; major species at pH 7.3. It is a tautomer of a 4-oxoproline.