User: I'm looking for the SMILES of a molecule that can be described as:
The molecule is an optically active form of selenocystathionine in which both amino acid residues have L-configuration. It is a tautomer of a L-selenocystathionine zwitterion.
Assistant: This is a molecule that fits this description: N[C@@H](CC[Se]C[C@H](N)C(=O)O)C(=O)O
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#}
N[C@@H](CC[Se]C[C@H](N)C(=O)O)C(=O)O
(2S)-2-amino-4-[(2R)-2-amino-2-carboxyethyl]selanylbutanoicacid
The molecule is an optically active form of selenocystathionine in which both amino acid residues have L-configuration. It is a tautomer of a L-selenocystathionine zwitterion.