반응 종결 후 반응 용매를 감압 증류 후 20% NaOH 으로 중화한 다음 디클로로메탄(DCM)으로 추출하였다.
After finishing the reaction, reaction solvents were distilled under a reduced pressure, and the resultant product was neutralized with 20% NaOH and then, extracted with dichloromethane (DCM).