[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a pyrrolidinone. It has a role as a fluorochrome."}, {"from": "gpt", "value": "[C][C][C][=Branch1][C][=O][N][Branch1][Branch1][C][Ring1][=Branch1][=O][O][C][=Branch1][C][=O][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][C][=C][C][=C][Branch1][#Branch2][C][=N][O][N][=C][Ring1][=Branch2][Ring1][Branch1][N+1][=Branch1][C][=O][O-1]"}]