Dimethyl Sulfoxide → 4-[2-(4,5-Dimethylthiazol-2-yl)-5,6-dimethyl-pyridin-3-yloxy]-6,7-dimethoxy-quinoline

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Reaktionsgleichung

CS(C)=O.[CH3:5][C:6]1[CH:7]=[C:8]([OH:20])[C:9]([C:13]2[S:14][C:15]([CH3:19])=[C:16]([CH3:18])[N:17]=2)=[N:10][C:11]=1[CH3:12].Cl[C:22]1[C:31]2[C:26](=[CH:27][C:28]([O:34][CH3:35])=[C:29]([O:32][CH3:33])[CH:30]=2)[N:25]=[CH:24][CH:23]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C1C=CN=CC=1)C.O>[CH3:18][C:16]1[N:17]=[C:13]([C:9]2[C:8]([O:20][C:22]3[C:31]4[C:26](=[CH:27][C:28]([O:34][CH3:35])=[C:29]([O:32][CH3:33])[CH:30]=4)[N:25]=[CH:24][CH:23]=3)=[CH:7][C:6]([CH3:5])=[C:11]([CH3:12])[N:10]=2)[S:14][C:15]=1[CH3:19]

Komponenten

Reaktionsbedingungen

Temperatur: 140 °C

Versuchsvorschrift

Dimethyl sulfoxide (2 ml) was added to 5,6-dimethyl-2-(4,5-dimethylthiazol-2-yl)-pyridin-3-ol (50 mg), 4-chloro-6,7-dimethoxyquinoline (143 mg), cesium carbonate (209 mg), and 4-(N,N-dimethylamino)-pyridine (78 mg), and the mixture was stirred at 140° C. overnight. The reaction solution was cooled to room temperature, water was then added to the cooled solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was then washed with water and was dried over anhydrous sodium sulfate. The solvent was removed by distillation under the reduced pressure, and the residue was purified by thin layer chromatography using hexane-acetone to give the title compound (7.7 mg, yield 9%).

Aufarbeitung

temperatureThe reaction solution was cooled to room temperature
extractionthe mixture was extracted with ethyl acetate
washThe ethyl acetate layer was then washed with water
dry with materialwas dried over anhydrous sodium sulfate
customThe solvent was removed by distillation under the reduced pressure
customthe residue was purified by thin layer chromatography

Quellen und Nachweise

ORD-Eintrag: ord-45a41b52936e4c47a79470aa51cddbe1
Quelldatensatz: uspto-grants-2009_07
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07560558B2

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