[{"from": "human", "value": "Can you suggest some reagents that might have been used in the given chemical reaction? [O][=N+1][Branch1][C][O-1][C][=C][C][Branch1][C][Br][=C][C][=C][Ring1][#Branch1][N][C][=C][N][=C][Ring1][Branch1]>>[N][C][=C][C][Branch1][C][Br][=C][C][=C][Ring1][#Branch1][N][C][=C][N][=C][Ring1][Branch1]"}, {"from": "gpt", "value": "[C][C][O][C][Branch1][C][C][=O].[C][O].[Cl][C][Cl].[O].[O].[O].[O].[O].[O].[O].[BH4-1].[Na+1].[Ni]"}]