Nicotinic Acid → 3-Methyl-2-[pyridine-3-carbonyl]-amino-butyric acid methyl ester

HRID 82476

반응식

HRID 82476 반응식
[CH3:1][O:2][C:3](=[O:9])[C@H:4]([CH:6]([CH3:8])[CH3:7])[NH2:5].CN1CCOCC1.CCN=C=NCCCN(C)C.Cl.[C:29](O)(=[O:36])[C:30]1[CH:35]=[CH:34][CH:33]=[N:32][CH:31]=1>C(Cl)Cl.C(OCC)(=O)C>[CH3:1][O:2][C:3](=[O:9])[C:4]([NH2:5])([C:29]([C:30]1[CH:31]=[N:32][CH:33]=[CH:34][CH:35]=1)=[O:36])[CH:6]([CH3:8])[CH3:7]

참가 물질

7

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온도
25 °C

실험 절차

To a solution of L-valine methylester (3.0 g, 2.29 mmol), in DCM (30 mL) were added N-methyl morpholine (11.5 mL, 11.45 mmol), EDCI.HCl (8.7 g, 45.8 mmol) and nicotinic acid (3.3 g, 27.4 mmol). The mixture was allowed to stir at room temperature (25° C.) over 3 h under nitrogen atmosphere. The resulting mixture was diluted with ethyl acetate (200 mL), washed with water (3×100mL) and dried over sodium sulphate. The crude product obtained upon evaporation of the solvent was further purified by silica gel column chromatography to obtain required product as sticky solid (2.0 g, 38%).

후처리

  1. washwashed with water (3×100mL)
  2. dry with materialdried over sodium sulphate
  3. customThe crude product obtained upon evaporation of the solvent
  4. customwas further purified by silica gel column chromatography

출처 및 근거

ORD 기록
ord-c149b7e51eb84d4c872955058ddfdce3
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08846721B2

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