[{"from": "human", "value": "From the provided chemical reaction, propose some possible reagents that could have been used. [Cl][C][=C][C][=C][C][=C][NH1][C][Ring1][Branch1][=C][Ring1][=Branch2]>>[Cl][C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][N][C][C][Ring1][=Branch1]"}, {"from": "gpt", "value": "[O][=C][Branch1][C][O][C][Branch1][C][F][Branch1][C][F][F].[BH4-1].[Na+1]"}]