Triethylamine → tert-butyl 4-(4-bromo-1-(2-((methylsulfonyl)oxy)ethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate

HRID 2088891노트

반응식

HRID 2088891 반응식
[Br:1][C:2]1[N:3]=[C:4]([CH:10]2[CH2:15][CH2:14][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:12][CH2:11]2)[N:5]([CH2:7][CH2:8][OH:9])[CH:6]=1.C(N(CC)CC)C.[CH3:30][S:31](Cl)(=[O:33])=[O:32]>ClCCl>[Br:1][C:2]1[N:3]=[C:4]([CH:10]2[CH2:15][CH2:14][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:12][CH2:11]2)[N:5]([CH2:7][CH2:8][O:9][S:31]([CH3:30])(=[O:33])=[O:32])[CH:6]=1

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 67265139tert-Butyl 4-(4-bromo-1-(2-hydroxyethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate

생성물 1

HCID 86641601tert-butyl 4-(4-bromo-1-(2-((methylsulfonyl)oxy)ethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate수율 96%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

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온도
0 °C

실험 절차

Combine tert-butyl 4-(4-bromo-1-(2-hydroxyethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate (3.84 g, 10.26 mmol), dichloromethane (60 mL), and triethylamine (4.29 mL, 3.0 eq). Place under nitrogen and cool to 0° C. Add methanesulfonyl chloride (0.95 mL, 1.2 eq) dropwise. After 15 minutes, quench with saturated aqueous sodium bicarbonate. Wash the organics with saturated aqueous sodium chloride. Dry the organics over anhydrous magnesium sulfate, filter, and concentrate in vacuo to give the title compound (4.45 g, 96%). MS (ES) m/z=452 [M]+.

후처리

  1. customquench with saturated aqueous sodium bicarbonate
  2. washWash the organics with saturated aqueous sodium chloride
  3. dry with materialDry the organics over anhydrous magnesium sulfate
  4. filtrationfilter
  5. concentrationconcentrate in vacuo

출처 및 근거

ORD 기록
ord-f0af52b84000475389a539afb57fe2ed
출처 데이터셋
uspto-grants-2013_05
특허 번호
US08436002B2

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