[{"from": "human", "value": "Given the following chemical reaction, what are some potential reagents that could have been employed? [C][=C][C][N][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][C][Ring1][N]>>[C][=C][C][N][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Branch1][C][O][C][Ring1][N]"}, {"from": "gpt", "value": "[C][C][O].[Cl].[O].[BH4-1].[Na+1].[Na+1].[OH1-1]"}]