[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a member of boronic acids and a L-cysteine derivative."}, {"from": "gpt", "value": "[B][Branch1][=C][C][C][S][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][Branch1][C][O][O]"}]