반응식
[NH2:1][CH2:2][C@H:3]1[CH2:8][O:7][CH2:6][CH2:5][N:4]1[C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10].N1C=CC=CC=1.[C:22](Cl)(=[O:24])[CH3:23]>ClCCl.C(=O)(O)[O-].[Na+].[Cl-].[Na+]>[C:22]([NH:1][CH2:2][C@H:3]1[CH2:8][O:7][CH2:6][CH2:5][N:4]1[C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])(=[O:24])[CH3:23]참가 물질
실험 절차
To a solution of (S)-tert-butyl 3-(aminomethyl)morpholine-4-carboxylate (commercially available, 0.62 g, 2.87 mmol) in dichloromethane (28.0 ml) were added sequentially pyridine (0.5 ml, 5.73 mmol) and acetyl chloride (0.25 ml, 3.44 mmol). After 30 min the reaction was diluted with saturated aqueous sodium bicarbonate and saturated aqueous sodium chloride. The resulting mixture was extracted with ethyl acetate (×3), and the combined organic layers were then dried over sodium sulfate, filtered, and concentrated under reduced pressure. The resulting light yellow oil was purified by flash column chromatography (ISCO, SiO2, 0→10% methanol in ethyl acetate over 10 min) to afford (S)-tert-butyl 3-(acetamidomethyl)morpholine-4-carboxylate (0.741 g, yield: almost quantitative, INTERMEDIATE 86A STEP 1).
후처리
- extractionThe resulting mixture was extracted with ethyl acetate (×3)
- dry with materialthe combined organic layers were then dried over sodium sulfate
- filtrationfiltered
- concentrationconcentrated under reduced pressure
- customThe resulting light yellow oil was purified by flash column chromatography (ISCO, SiO2, 0→10% methanol in ethyl acetate over 10 min)
출처 및 근거
- ORD 기록
- ord-9ff96de23ff84d01a6b5490e1521df03
- 출처 데이터셋
- uspto-grants-2016_02
- 특허 번호
- US09248140B2
연결된 노트
불러오는 중…