[{"from": "human", "value": "Please provide possible reagents based on the following chemical reaction. [C][O][C][=Branch1][C][=O][Cl].[O][C][C][C][C][N][C][C][Ring1][=Branch1]>>[C][O][C][=Branch1][C][=O][N][C][C][C][Branch1][Ring1][C][O][C][C][Ring1][Branch2]"}, {"from": "gpt", "value": "[Cl][C][Cl].[O].[O][=C][Branch1][C][O-1][O-1].[K+1].[K+1]"}]