[{"from": "human", "value": "Please propose potential reagents that might have been utilized in the provided chemical reaction. [Br][Br].[O][C][=N][C][=C][C][=C][Ring1][=Branch1][Cl]>>[O][C][=N][C][=C][Branch1][C][Br][C][=C][Ring1][#Branch1][Cl]"}, {"from": "gpt", "value": "[C][N][Branch1][C][C][C][=O].[O].[O][=S][Branch1][C][O-1][O-1].[Na+1].[Na+1]"}]