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