[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a leucine derivative."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][C][Branch1][#Branch1][C][=Branch1][C][=O][O][C][N][C][=Branch1][C][=O][C][S][C][=N][C][=Branch1][=N][=C][Branch1][Branch2][C][=Branch1][C][=O][N][Ring1][#Branch1][C][#N][C][=C][C][=C][C][=C][Ring1][=Branch1]"}]