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