Sodium hydride → Benzyl 6-[(tert-butoxycarbonyl)amino]-5-oxo-4-(2,2,2-trifluoroethyl)-1,4-diazepane-1-carboxylate

HRID 493688

반응식

HRID 493688 반응식
[H-].[Na+].[C:3]([O:7][C:8]([NH:10][CH:11]1[CH2:17][N:16]([C:18]([O:20][CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[O:19])[CH2:15][CH2:14][NH:13][C:12]1=[O:28])=[O:9])([CH3:6])([CH3:5])[CH3:4].ClC(Cl)(Cl)S(O[CH2:35][C:36]([F:39])([F:38])[F:37])(=O)=O.ClC(Cl)(Cl)S([O-])(=O)=O>CN(C)C=O>[C:3]([O:7][C:8]([NH:10][CH:11]1[CH2:17][N:16]([C:18]([O:20][CH2:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[O:19])[CH2:15][CH2:14][N:13]([CH2:35][C:36]([F:39])([F:38])[F:37])[C:12]1=[O:28])=[O:9])([CH3:6])([CH3:4])[CH3:5]

참가 물질

6

반응물 4

HCID 24758Sodium hydride2회HCID 900272,2,2-Trifluoroethyl trichloromethanesulphonateHCID 22293222TrichloromethanesulfonateHCID 22293224Benzyl 6-[(tert-butoxycarbonyl)amino]-5-oxo-1,4-diazepane-1-carboxylate

생성물 1

HCID 22293256Benzyl 6-[(tert-butoxycarbonyl)amino]-5-oxo-4-(2,2,2-trifluoroethyl)-1,4-diazepane-1-carboxylate수율 42%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

반응 조건

온도
-35 °C

실험 절차

Sodium hydride (60% dispersion in mineral oil; 180 mg, 4.43 mmol) was added to a solution of benzyl 6-[(tert-butoxycarbonyl)amino]-5-oxo-1,4-diazepane-1-carboxylate (1.34 g, 3.69 mmol) in N,N-dimethylformamide (25 mL) at −35° C. After 15 min, 2,2,2-trifluoroethyl trichloromethanesulfonate (0.911 mL, 5.54 mmol) was added and the reaction was stirred at −35° C. After 2 h, an additional amount of sodium hydride (100 mg, 2.5 mmol) and trichloromethanesulfonate (0.500 mL, 3.04 mmol) were added. After 18 h, the reaction was quenched with water and the mixture was extracted with ethyl acetate. The organic layer was washed with water (3×), saturated brine, dried over magnesium sulfate, filtered and concentrated. Purification by silica gel chromatography (hexanes→30% ethyl acetate/hexanes) gave the title compound (690 mg). MS 446 (M+1).

후처리

  1. waitAfter 2 h
  2. waitAfter 18 h
  3. customthe reaction was quenched with water
  4. extractionthe mixture was extracted with ethyl acetate
  5. washThe organic layer was washed with water (3×), saturated brine
  6. dry with materialdried over magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customPurification by silica gel chromatography (hexanes→30% ethyl acetate/hexanes)

출처 및 근거

ORD 기록
ord-ad72f65d0021466181a25828bd23972e
출처 데이터셋
uspto-grants-2009_05
특허 번호
US07534784B2

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