[{"from": "human", "value": "Please provide possible reagents based on the following chemical reaction. [Cl][C][C][=C][C][=C][Branch1][C][Br][C][=C][Ring1][#Branch1][O][C][C][C][C][C][C][Ring1][=Branch1].[C-1][#N]>>[N][#C][C][C][=C][C][=C][Branch1][C][Br][C][=C][Ring1][#Branch1][O][C][C][C][C][C][C][Ring1][=Branch1]"}, {"from": "gpt", "value": "[C][C][O].[O].[I-1].[K+1].[K+1]"}]