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