[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a histidine derivative."}, {"from": "gpt", "value": "[C][N+1][Branch1][C][C][Branch1][C][C][C][Branch1][=Branch2][C][C][=C][N][=C][N][Ring1][Branch1][C][=Branch1][C][=O][O-1]"}]