Pyridine → 6-Bromo-2-(tert-butylcarbonyl)amino-3-methoxypyridine

HRID 1725672노트

반응식

HRID 1725672 반응식
[NH2:1][C:2]1[C:7]([O:8][CH3:9])=[CH:6][CH:5]=[C:4]([Br:10])[N:3]=1.N1C=CC=CC=1.[C:17](Cl)(=[O:22])[C:18]([CH3:21])([CH3:20])[CH3:19]>C(Cl)Cl>[Br:10][C:4]1[N:3]=[C:2]([NH:1][C:17]([C:18]([CH3:21])([CH3:20])[CH3:19])=[O:22])[C:7]([O:8][CH3:9])=[CH:6][CH:5]=1

참가 물질

5

반응물 3

HCID 1049PyridineHCID 62493Pivaloyl chlorideHCID 575629062-Amino-6-bromo-3-methoxypyridine

생성물 1

HCID 575628846-Bromo-2-(tert-butylcarbonyl)amino-3-methoxypyridine

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

A dry reaction flask equipped with a nitrogen inlet and magnetic stirring bar was charged with 2-amino-6-bromo-3-methoxypyridine (33) (0.170 g, 0.84 mmol), pyridine (0.126 mL, 1.26 mmol) and CH2Cl2 (5 mL). To this at 0° C. was added pivaloyl chloride (0.113 mL, 0.92 mmol) and then the reaction mixture was stirred at room temperature overnight. The reaction was then quenched with water (25 mL), extracted with CH2Cl2 (2×25 mL), dried over anhydrous sodium sulfate and solvent was removed under reduced pressure to afford 6-bromo-2-(tert-butylcarbonyl)amino-3-methoxypyridine (34). LCMS: purity: 80%; MS (m/z): 287 (MH+).

후처리

  1. customA dry reaction flask
  2. customequipped with a nitrogen inlet and magnetic stirring bar
  3. customThe reaction was then quenched with water (25 mL)
  4. extractionextracted with CH2Cl2 (2×25 mL)
  5. dry with materialdried over anhydrous sodium sulfate and solvent
  6. customwas removed under reduced pressure

출처 및 근거

ORD 기록
ord-28f9038bedd744508277f9bba488830b
출처 데이터셋
uspto-grants-2009_02
특허 번호
US07491732B2

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