[{"from": "human", "value": "Given the following chemical reaction, what are some potential reagents that could have been employed? [C][O][C][=C][C][Branch1][#Branch2][N][C][C][O][C][C@@H1][Ring1][=Branch1][C][=C][C][=C][Ring1][=N][N+1][=Branch1][C][=O][O-1]>>[C][O][C][=C][C][Branch1][#Branch2][N][C][C][O][C][C@@H1][Ring1][=Branch1][C][=C][C][=C][Ring1][=N][N]"}, {"from": "gpt", "value": "[C][O].[N][N].[O]"}]