Sodium hydride → tert-butyl 4-(4-pyridin-2-yl-1H-imidazol-1-yl)piperidine-1-carboxylate

HRID 605012

반응식

HRID 605012 반응식
[NH:1]1[CH:5]=[C:4]([C:6]2[CH:11]=[CH:10][CH:9]=[CH:8][N:7]=2)[N:3]=[CH:2]1.[H-].[Na+].CS(O[CH:19]1[CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21][CH2:20]1)(=O)=O>CN(C=O)C.C(Cl)Cl>[N:7]1[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=1[C:4]1[N:3]=[CH:2][N:1]([CH:19]2[CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21][CH2:20]2)[CH:5]=1

참가 물질

6

반응물 3

HCID 24758Sodium hydrideHCID 41848691-(tert-Butoxycarbonyl)-4-(methanesulfonyloxy)piperidineHCID 178420123HCID 178420123, 화합물

생성물 1

HCID 67055580tert-butyl 4-(4-pyridin-2-yl-1H-imidazol-1-yl)piperidine-1-carboxylate

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 6344Dichloromethane용매

실험 절차

To a solution of 2-(1H-imidazol-4-yl)pyridine (0.87 g, 6 mmol) in DMF (12 mL) at 0° C. was added sodium hydride (346 mg, 7.2 mmol). The reaction mixture was allowed to warm to room temperature and stirred for an additional 20 min. tert-Butyl 4-[(methylsulfonyl)oxy]piperidine-1-carboxylate (1.34 g, 4.8 mmol) was added and the resulting mixture was heated at 80° C. for 48 h. The reaction was cooled to room temperature, diluted with CH2Cl2, and washed with water and brine. The combined organic layers were dried over magnesium sulfate and the solvents removed in vacuo. The residue was purified by silica gel chromatography (0%-100% MeOH/CH2Cl2) and then by HPLC (phenomenex column, 30%-100% acetonitrile/water+0.1% TFA) to afford tert-butyl 4-(4-pyridin-2-yl-1H-imidazol-1-yl)piperidine-1-carboxylate as an oil. 1H NMR (500 MHz, CD3OD) δ 8.88 (m, 1H), 8.70 (m, 1H), 8.40 (m, 1H), 8.10 (m, 1H), 8.00 (m, 1H), 7.55 (m, 1H), 4.58 (m, 1H), 4.32 (m, 2H), 3.01 (m, 2H), 2.24 (m, 2H), 2.00 (m, 2H), 1.49 (s, 9H).

후처리

  1. additionwas added
  2. temperaturethe resulting mixture was heated at 80° C. for 48 h
  3. temperatureThe reaction was cooled to room temperature
  4. washwashed with water and brine
  5. dry with materialThe combined organic layers were dried over magnesium sulfate
  6. customthe solvents removed in vacuo
  7. customThe residue was purified by silica gel chromatography (0%-100% MeOH/CH2Cl2)

출처 및 근거

ORD 기록
ord-88983181fff04ef885343de7a3355b84
출처 데이터셋
uspto-grants-2011_03
특허 번호
US07910561B2

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