[{"from": "human", "value": "Based on the given chemical reaction, can you propose some likely reagents that might have been utilized? [C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][C][N][C][C][Ring1][=Branch1].[O][C][C][C][Br]>>[C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][C][N][Branch1][Branch1][C][C][C][O][C][C][Ring1][#Branch2]"}, {"from": "gpt", "value": "[C][C][#N].[O][=C][Branch1][C][O-1][O-1].[I-1].[K+1].[K+1].[Na+1]"}]