반응이 종결되면 온도를 낮춘 후 디클로메탄으로 추출하고 10% HCl 및 10% NaCl 수용액으로 세정하였다.
When the reaction was completed, the temperature was lowered, extracted with dichloromethane, and washed with 10% HCl and 10% NaCl aqueous solution.