[{"from": "human", "value": "From the provided chemical reaction, propose some possible reagents that could have been used. [C][C][O][C][=Branch1][C][=O][C][C][C][C][=N][C][=C][N][Ring1][Branch1][C][Ring1][=Branch2]>>[O][C][C][C][C][C][=N][C][=C][N][Ring1][Branch1][C][Ring1][=Branch2]"}, {"from": "gpt", "value": "[C][C][C][O][C][Ring1][Branch1].[Cl].[Cl][C][Cl].[O].[Al+3].[H-1].[H-1].[H-1].[H-1].[Li+1].[Na+1].[OH1-1]"}]