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