[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is the L-enantiomer of lanthionine. It is a lanthionine, a non-proteinogenic L-alpha-amino acid and a L-alanine derivative. It is a tautomer of a L-lanthionine dizwitterion."}, {"from": "gpt", "value": "[C][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][S][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}]