Pyridine → 1-[2-(5-Bromo-pyridin-3-yl)-pyrrolidin-1-yl]-ethanone
반응식
[Br:1][C:2]1[CH:3]=[N:4][CH:5]=[C:6]([CH:8]2[CH2:12][CH2:11][CH2:10][NH:9]2)[CH:7]=1.N1C=CC=CC=1.[C:19](OC(=O)C)(=[O:21])[CH3:20]>C(Cl)Cl>[Br:1][C:2]1[CH:7]=[C:6]([CH:8]2[CH2:12][CH2:11][CH2:10][N:9]2[C:19](=[O:21])[CH3:20])[CH:5]=[N:4][CH:3]=1참가 물질
5
실험 절차
To a solution of 3-bromo-5-(2-pyrrolidinyl)pyridine (200 mg, 0.881 mmol) and pyridine (0.2 mL, 1.96 mmol) in DCM (1 mL) in a 8-mL vial is added acetic anhydride (0.093 mL, 0.969 mmol) dropwise. The mixture is stirred at room temperature for 2.5 h. The mixture is concentrated. The resulting crude product is purified by normal phase chromatography using 0-4.5% MeOH in DCM as the gradient to afford 1-[2-(5-bromo-pyridin-3-yl)-pyrrolidin-1-yl]-ethanone (313 mg, 83% yield).
후처리
- concentrationThe mixture is concentrated
- customThe resulting crude product is purified by normal phase chromatography
출처 및 근거
- ORD 기록
- ord-621fe542518d4dd4a7d446037a497fb3
- 출처 데이터셋
- uspto-grants-2015_11
- 특허 번호
- US09181272B2
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