[{"from": "human", "value": "Given this chemical reaction, what are some reagents that could have been used? [C][C][=Branch1][C][=O][O].[C][N][Branch1][C][C][C][C][O]>>[C][C][=Branch1][C][=O][O][C][C][N][Branch1][C][C][C]"}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O][C][Branch1][C][C][=O].[Cl][C][Branch1][C][Cl][Cl].[Na+1].[OH1-1]"}]