[{"from": "human", "value": "Please suggest some possible reagents that could have been used in the following chemical reaction. [C][O][C][=Branch1][C][=O][Cl].[O][=C][C][C][C][N][C][C][Ring1][Branch1][C][Ring1][Branch2]>>[C][O][C][=Branch1][C][=O][N][C][C][C][C][=Branch1][C][=O][C][C][Ring1][=Branch1][C][Ring1][=Branch2]"}, {"from": "gpt", "value": "[C][C][#N].[O][=C][Branch1][C][O-1][O-1].[K+1].[K+1]"}]