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