[{"from": "human", "value": "Please propose potential reagents that might have been utilized in the provided chemical reaction. [C][O][C][C][N].[O][=C][C][=C][C][=C][C][Branch1][C][Br][=N][Ring1][#Branch1]>>[C][O][C][C][N][C][C][=C][C][=C][C][Branch1][C][Br][=N][Ring1][#Branch1]"}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O][BH1-1][Branch1][#Branch1][O][C][Branch1][C][C][=O][O][C][Branch1][C][C][=O].[Cl][C][Cl].[Na+1]"}]