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