Sodium hydride → Tert-butyl 4-{2-(6-(4-tert-butybenzenesulfonylamino)-5-(4-methylphenyl)pyrimidin-4-yloxy)ethoxy}phenoxyacetate

HRID 2287

Reaktionsgleichung

Reaktionsgleichung von HRID 2287
[C:1]([C:5]1[CH:10]=[CH:9][C:8]([S:11]([NH:14][C:15]2[C:20]([C:21]3[CH:26]=[CH:25][C:24]([CH3:27])=[CH:23][CH:22]=3)=[C:19]([O:28][CH2:29][CH2:30][O:31][C:32]3[CH:37]=[CH:36][C:35]([OH:38])=[CH:34][CH:33]=3)[N:18]=[CH:17][N:16]=2)(=[O:13])=[O:12])=[CH:7][CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[H-].[Na+].Br[CH2:42][C:43]([O:45][C:46]([CH3:49])([CH3:48])[CH3:47])=[O:44].[Cl-].[NH4+]>CN(C)C=O>[C:1]([C:5]1[CH:10]=[CH:9][C:8]([S:11]([NH:14][C:15]2[N:16]=[CH:17][N:18]=[C:19]([O:28][CH2:29][CH2:30][O:31][C:32]3[CH:33]=[CH:34][C:35]([O:38][CH2:42][C:43]([O:45][C:46]([CH3:49])([CH3:48])[CH3:47])=[O:44])=[CH:36][CH:37]=3)[C:20]=2[C:21]2[CH:26]=[CH:25][C:24]([CH3:27])=[CH:23][CH:22]=2)(=[O:13])=[O:12])=[CH:7][CH:6]=1)([CH3:4])([CH3:2])[CH3:3]

Komponenten

6

Edukt 4

HCID 24758Sodium hydrideHCID 25517Ammonium ChlorideHCID 79177tert-Butyl bromoacetateHCID 196895004-tert-butyl-N-{6-[2-(4-hydroxyphenoxy)ethoxy]-5-(4-methylphenyl)pyrimidin-4-yl}benzenesulfonamide

Produkt 1

HCID 23362083Tert-butyl 4-{2-(6-(4-tert-butybenzenesulfonylamino)-5-(4-methylphenyl)pyrimidin-4-yloxy)ethoxy}phenoxyacetateAusbeute 92,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel2×

Versuchsvorschrift

To a solution of 4-tert-butyl-N-{6-[2-(4-hydroxyphenoxy)ethoxy]-5-(4-methylphenyl)pyrimidin-4-yl}benzenesulfonamide (200 mg) in dimethylformamide (2 ml) is added sodium hydride (60% dispersion-type, 32 mg), and the mixture is stirred at room temperature for 30 minutes. To the mixture is added a solution of tert-butyl bromoacetate (77 mg) in dimethylformamide (2 ml) under ice-cooling, and the mixture is stirred at the same temperature for one hour. The reaction solution is poured into ice-water, and treated with saturated aqueous ammonium chloride solution, and extracted with ethyl acetate. The ethyl acetate layer is washed, dried and evaporated to remove the solvent. The residue is purified by silica gel column chromatography (solvent; hexane/ethyl acetate=3:1), and crystallized from ethyl acetate/diisopropyl ether to give tert-butyl 4-{2-(6-(4-tert-butybenzenesulfonylamino)-5-(4-methylphenyl)pyrimidin-4-yloxy)ethoxy}phenoxyacetate (225 mg ).

Aufarbeitung

  1. temperaturecooling
  2. stirringthe mixture is stirred at the same temperature for one hour
  3. extractionextracted with ethyl acetate
  4. washThe ethyl acetate layer is washed
  5. customdried
  6. customevaporated
  7. customto remove the solvent
  8. customThe residue is purified by silica gel column chromatography (solvent; hexane/ethyl acetate=3:1)
  9. customcrystallized from ethyl acetate/diisopropyl ether

Quellen und Nachweise

ORD-Eintrag
ord-653524203536458e8c961daeac1d8d20
Quelldatensatz
uspto-grants-1998_03
Patentnummer
US05728706

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