[{"from": "human", "value": "From the provided chemical reaction, propose some possible reagents that could have been used. [C][C][=Branch1][C][=O][Cl].[C][C][=Branch1][C][=O][N][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1]>>[C][C][=Branch1][C][=O][N][C][C][C][=C][C][=C][Branch1][=Branch1][C][Branch1][C][C][=O][C][=C][Ring1][=Branch2]"}, {"from": "gpt", "value": "[Cl][C][Cl].[Al+3].[Cl-1].[Cl-1].[Cl-1]"}]