[{"from": "human", "value": "Given this chemical reaction, what are some reagents that could have been used? [C][O][N].[O][=C][Branch1][C][O][C][N][N][=N][N][=C][Ring1][Branch1][S]>>[C][O][N][C][=Branch1][C][=O][C][N][N][=N][N][=C][Ring1][Branch1][S]"}, {"from": "gpt", "value": "[C][N][Branch1][C][C][C][=O].[C][O].[C][O-1].[Cl].[Na+1]"}]