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