[{"from": "human", "value": "Based on the given chemical reaction, can you propose some likely reagents that might have been utilized? [C][C][Br].[O][B][O][C][C][=C][C][=C][Branch1][C][O][C][=C][Ring1][#Branch1][Ring1][#Branch2]>>[C][C][O][C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][B][Branch1][C][O][O][C][Ring1][#Branch1]"}, {"from": "gpt", "value": "[C][N][Branch1][C][C][C][=O].[Cl].[H-1].[Na+1]"}]