[{"from": "human", "value": "Please suggest some possible reagents that could have been used in the following chemical reaction. [C][C][O][C][C][N][Ring1][=Branch1].[O][=C][C][=C][C][Branch1][C][O][=C][C][=C][Ring1][#Branch1][Cl]>>[O][C][=C][C][=C][Branch1][C][Cl][C][Branch1][#Branch2][C][N][C][C][O][C][C][Ring1][=Branch1][=C][Ring1][=C]"}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O].[C][O].[BH4-1].[Na+1]"}]