[{"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][Branch1][Ring1][O][C][C][=C][Ring1][Branch2][C][=C][Ring1][N][C][=O]>>[C][C][C][=N][C][=C][C][=C][Branch1][Ring1][O][C][C][=C][Ring1][Branch2][C][=C][Ring1][N][C][O]"}, {"from": "gpt", "value": "[C][C][C][O][C][Ring1][Branch1].[BH4-1].[Na+1]"}]