Task: Please create a SMILES based on the description below.
Description: The molecule is a cystine zwitterion. It is an enantiomer of a D-cystine zwitterion. It is a tautomer of a L-cystine.
Result: [NH3+][C@@H](CSSC[C@H]([NH3+])C(=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#}
[NH3+][C@@H](CSSC[C@H]([NH3+])C(=O)[O-])C(=O)[O-]
C([C@@H](C(=O)[O-])[NH3+])SSC[C@@H](C(=O)[O-])[NH3+]
(2R)-2-azaniumyl-3-[[(2R)-2-azaniumyl-2-carboxylatoethyl]disulfanyl]propanoate
The molecule is a cystine zwitterion. It is an enantiomer of a D-cystine zwitterion. It is a tautomer of a L-cystine.