User: I'm searching for the SMILES of a molecule that can be described as:
The molecule is a tetrapeptide composed of L-alanine, two L-leucine units, and L-aspartic acid joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-alanine, a L-leucine and a L-aspartic acid.
Assistant: This is a molecule that fits your description: CC(C)C[C@H](NC(=O)[C@H](C)N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(=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#}
CC(C)C[C@H](NC(=O)[C@H](C)N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(=O)O)C(=O)O
(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-aminopropanoyl]amino]-4-methylpentanoyl]amino]-4-methylpentanoyl]amino]butanedioicacid
The molecule is a tetrapeptide composed of L-alanine, two L-leucine units, and L-aspartic acid joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-alanine, a L-leucine and a L-aspartic acid.