[{"from": "human", "value": "Can you suggest some reagents that might have been used in the given chemical reaction? [C][O][C][C][C][C][=N][C][=C][N][Ring1][Branch1][C][Ring1][=Branch2]>>[O][C][C][C][C][=N][C][=C][N][Ring1][Branch1][C][Ring1][=Branch2]"}, {"from": "gpt", "value": "[Br][B][Branch1][C][Br][Br].[Cl][C][Cl].[O]"}]