Task: Please give me a SMILES based on the description below.
Description: The molecule is a peptide anion obtained by deprotonation of the four carboxy groups of Ac-Asp-Glu-Glu; major species at pH 7.3. It is a conjugate base of an Ac-Asp-Glu-Glu.
Result: CC(=O)N[C@@H](CC(=O)[O-])C(=O)N[C@@H](CCC(=O)[O-])C(=O)N[C@@H](CCC(=O)[O-])C(=O)[O-]
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
(2S)-2-[[(2S)-2-[[(2S)-2-acetamido-3-carboxylatopropanoyl]amino]-4-carboxylatobutanoyl]amino]pentanedioate
The molecule is a peptide anion obtained by deprotonation of the four carboxy groups of Ac-Asp-Glu-Glu; major species at pH 7.3. It is a conjugate base of an Ac-Asp-Glu-Glu.