[{"from": "human", "value": "Given the following reaction, what are some possible reagents that could have been utilized? [C][C][=Branch1][C][=O][Cl].[C][O][C][=C][C][=C][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][=C][Ring1][#Branch2]>>[C][O][C][=C][C][=C][Branch1][=Branch1][C][Branch1][C][C][=O][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][=C][Ring1][=N]"}, {"from": "gpt", "value": "[Cl][C][Cl].[Al+3].[Br-1].[Br-1].[Br-1]"}]