[{"from": "human", "value": "Given the following reaction, what are some possible reagents that could have been utilized? [C][C][=Branch1][C][=O][C][C][C][N][Branch1][C][C][C].[N][O]>>[C][C][Branch1][=Branch2][C][C][C][N][Branch1][C][C][C][=N][O]"}, {"from": "gpt", "value": "[Cl].[O].[O][=C][Branch1][C][O-1][O-1].[Na+1].[Na+1]"}]