[{"from": "human", "value": "Given the following chemical reaction, what are some potential reagents that could have been employed? [O][=C][C][=C][Branch1][=Branch1][N+1][=Branch1][C][=O][O-1][C][=C][C][Branch1][C][Cl][=C][Ring1][#Branch2][Cl]>>[O][=N+1][Branch1][C][O-1][C][=C][C][=C][Branch1][C][Cl][C][Branch1][C][Cl][=C][Ring1][Branch2][C][O]"}, {"from": "gpt", "value": "[C][O].[BH4-1].[Cl-1].[NH4+1].[Na+1]"}]