Task: Please generate a SMILES based on the text description below.
Description: The molecule is a homocystine in which both chiral centres have L configuration. It derives from a L-homocysteine. It is a tautomer of a L,L-homocystine zwitterion.
Result: N[C@@H](CCSSCC[C@H](N)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#}
N[C@@H](CCSSCC[C@H](N)C(=O)O)C(=O)O
(2S)-2-amino-4-[[(3S)-3-amino-3-carboxypropyl]disulfanyl]butanoicacid
The molecule is a homocystine in which both chiral centres have L configuration. It derives from a L-homocysteine. It is a tautomer of a L,L-homocystine zwitterion.