[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a leucine derivative."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][C@@H1][Branch1][#Branch1][C][=Branch1][C][=O][O][C][N][C][=Branch1][C][=O][N][C][C][C][C][C][=C][C][=C][C][=C][Ring1][#Branch2][Ring1][=Branch1]"}]