[{"from": "human", "value": "Can you provide potential reagents for the following chemical reaction? [Br][P][Branch1][C][Br][Br].[O][C][C][=C][C][Branch1][C][Br][=C][C][=C][Ring1][#Branch1][I]>>[Br][C][C][=C][C][Branch1][C][Br][=C][C][=C][Ring1][#Branch1][I]"}, {"from": "gpt", "value": "[C][Cl].[Cl][C][Cl].[O][=C][Branch1][C][O-1][O].[Na+1]"}]