[{"from": "human", "value": "What reagents could have been utilized in the following chemical reaction? [O][=S][Branch1][C][Cl][Cl].[O][=S][=Branch1][C][=O][C][C][C][N][Ring1][=Branch1][C][C][O]>>[O][=S][=Branch1][C][=O][C][C][C][N][Ring1][=Branch1][C][C][Cl]"}, {"from": "gpt", "value": "[Cl][C][Cl].[O][=C][Branch1][C][O-1][O].[Na+1]"}]