반응식
[Br:1]Br.[OH:3][C:4]([CH:11]1[CH2:16][CH2:15][N:14]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:13][CH2:12]1)([C:6]1[S:7][CH:8]=[CH:9][N:10]=1)[CH3:5].C([O-])(=O)C.[Na+]>C(O)(=O)C>[Br:1][C:8]1[S:7][C:6]([C:4]([CH:11]2[CH2:16][CH2:15][N:14]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:13][CH2:12]2)([OH:3])[CH3:5])=[N:10][CH:9]=1참가 물질
5
실험 절차
Bromine (0.071 mL, 1.383 mmol) was added dropwise to a stirred mixture of the product of Step 1 (180 mg, 0.576 mmol) and sodium acetate (236 mg, 2.88 mmol) in acetic acid (2.31 mL), and the mixture was stirred at room temperature for 2 h. Acetic acid was removed by evaporation under vacuum and the residue was treated with saturated NaHCO3 solution, and extracted with ethyl acetate (×3). The combined organic fractions were washed with brine, dried (Na2SO4), concentrated, and purified by flash chromatography to give tert-butyl 4-[1-(5-bromo-1,3-thiazol-2-yl)-1-hydroxyethyl]piperidine-1-carboxylate (87 mg, 0.222 mmol, 38.6%). APCI: [M+H]+ m/z 379.1.
후처리
- customAcetic acid was removed by evaporation under vacuum
- additionthe residue was treated with saturated NaHCO3 solution
- extractionextracted with ethyl acetate (×3)
- washThe combined organic fractions were washed with brine
- dry with materialdried (Na2SO4)
- concentrationconcentrated
- custompurified by flash chromatography
출처 및 근거
- ORD 기록
- ord-bc518718e4fc4be5b357da9f97d2fa12
- 출처 데이터셋
- uspto-grants-2013_10
- 특허 번호
- US08551984B2
연결된 노트
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