[{"from": "human", "value": "Please suggest some possible reagents that could have been used in the following chemical reaction. [C][O][C][C][O][C][O][C][=C][C][=C][Branch1][=Branch2][C][C][O][C][Branch1][C][C][=O][C][=C][Ring1][N][O][C]>>[C][O][C][C][O][C][O][C][=C][C][=C][Branch1][Ring2][C][C][O][C][=C][Ring1][=Branch2][O][C]"}, {"from": "gpt", "value": "[C][C][C][O][C][Ring1][Branch1].[BH4-1].[Cl-1].[Li+1].[NH4+1]"}]