[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is the L-enantiomer of penicillamine. It is an enantiomer of a D-penicillamine."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][S]"}]