[{"from": "human", "value": "Based on the given chemical reaction, can you propose some likely reagents that might have been utilized? [O][=C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][C][C][C][C][Ring1][=Branch1][=O].[O][C][C][N][C][Ring1][Ring2]>>[O][=C][C][C][C][C][N][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][N][C][C][Branch1][C][O][C][Ring1][Branch1]"}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O].[C][O].[Cl].[Cl][C][Cl].[O].[O].[BH3-1][C][#N].[Cl-1].[Na+1].[Na+1]"}]