[{"from": "human", "value": "Based on the given chemical reaction, suggest some possible reagents. [O][=C][C][C][C][Branch1][C][Cl][Branch1][C][Cl][C][C][Ring1][Branch2]>>[O][C][C][C][C][Branch1][C][Cl][Branch1][C][Cl][C][C][Ring1][Branch2]"}, {"from": "gpt", "value": "[C][O].[BH4-1].[Na+1]"}]