[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a dipeptide formed from L-leucine and glycine residues. It has a role as a metabolite. It is a tautomer of a Leu-Gly zwitterion."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][C@@H1][Branch1][N][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O][N]"}]