[{"from": "human", "value": "Based on the given chemical reaction, can you propose some likely reagents that might have been utilized? [C][O][C][=Branch1][C][=O][C][=C][C][=C][Branch1][C][C][C][Branch1][C][N][=C][Ring1][Branch2]>>[C][C][=C][C][=C][Branch1][Ring1][C][O][C][=C][Ring1][Branch2][N]"}, {"from": "gpt", "value": "[C][O][C][C][O][C][C][O][C].[BH4-1].[Li+1]"}]