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