[{"from": "human", "value": "Please propose potential reagents that might have been utilized in the provided chemical reaction. [N][C][C][Branch1][C][O][C][O].[O][=C][Branch1][C][Cl][C][Cl]>>[O][=C][Branch1][Ring1][C][Cl][N][C][C][Branch1][C][O][C][O]"}, {"from": "gpt", "value": "[C][C][#N].[C][O]"}]