Water → 4-[4-(2,4-difluorophenyl)-1,3-thiazol-2-yl]-N-pyridin-3-ylpiperazine-1-carboxamide

HRID 2263255

Reaktionsgleichung

[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([NH:7][C:8](=[O:15])OCC(Cl)(Cl)Cl)[CH:2]=1.[F:16][C:17]1[CH:22]=[C:21]([F:23])[CH:20]=[CH:19][C:18]=1[C:24]1[N:25]=[C:26]([N:29]2[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]2)[S:27][CH:28]=1.C(N(C(C)C)CC)(C)C.O>CS(C)=O>[F:16][C:17]1[CH:22]=[C:21]([F:23])[CH:20]=[CH:19][C:18]=1[C:24]1[N:25]=[C:26]([N:29]2[CH2:30][CH2:31][N:32]([C:8]([NH:7][C:3]3[CH:2]=[N:1][CH:6]=[CH:5][CH:4]=3)=[O:15])[CH2:33][CH2:34]2)[S:27][CH:28]=1

Komponenten

Reaktionsbedingungen

Temperatur: 70 °C

Versuchsvorschrift

A mixture of 2,2,2-trichloroethyl pyridin-3-ylcarbamate (211 mg, 0.782 mmol), 1-[4-(2,4-difluorophenyl)-1,3-thiazol-2-yl]piperazine (200 mg, 0.711 mmol) and diisopropylethylamine (0.248 ml, 1.42 mmol) in dimethyl sulfoxide (2.5 ml) was stirred at 70° C. for 15 hours. Water was poured to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with water, and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate) and recrystallized from a mixed solvent of hexane and tetrahydrofuran to give 169 mg (59.4%) of the desired product as a solid.

Aufarbeitung

extractionthe mixture was extracted with ethyl acetate
washThe extract was washed with water
dry with materialdried over anhydrous magnesium sulfate
distillationthe solvent was distilled off under reduced pressure
customThe residue was purified by silica gel column chromatography (ethyl acetate)
customrecrystallized from a mixed solvent of hexane and tetrahydrofuran

Quellen und Nachweise

ORD-Eintrag: ord-63742835bbf94a838324dccfb0764e59
Quelldatensatz: uspto-grants-2010_12
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07851473B2

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