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