[{"from": "human", "value": "Please propose potential reagents that might have been utilized in the provided chemical reaction. [C][N][C][C][C][N][C][C][Ring1][#Branch1].[O][C][C][Br]>>[C][N][C][C][C][N][Branch1][Ring2][C][C][O][C][C][Ring1][#Branch2]"}, {"from": "gpt", "value": "[C][C][N][Branch1][=Branch1][C][Branch1][C][C][C][C][Branch1][C][C][C].[C][N][Branch1][C][C][C][=O]"}]