[{"from": "human", "value": "Based on the given chemical reaction, can you propose some likely reagents that might have been utilized? [N][#C][C][Branch1][N][C][=C][C][=C][C][Branch1][C][Br][=C][Ring1][#Branch1][C][C][=Branch1][C][=O][C][Ring1][N]>>[N][#C][C][Branch1][N][C][=C][C][=C][C][Branch1][C][Br][=C][Ring1][#Branch1][C][C][Branch1][C][O][C][Ring1][N]"}, {"from": "gpt", "value": "[C][O].[Cl][C][Cl].[BH4-1].[Na+1]"}]