Water → 7-(1-azidoethyl)-6-(2,5-difluorophenyl)-3-methyl-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one

HRID 58299

Reaktionsgleichung

[N:1]([CH:4]([C:6]1[N:7]=[C:8]2[S:16][CH:15]=[C:14]([CH3:17])[N:9]2[C:10](=[O:13])[C:11]=1Br)[CH3:5])=[N+:2]=[N-:3].[F:18][C:19]1[CH:24]=[CH:23][C:22]([F:25])=[CH:21][C:20]=1B(O)O.C(=O)([O-])[O-].[Na+].[Na+].O>O1CCOCC1.C(OCC)(=O)C.Cl[Pd](Cl)(P(C(C)(C)C)(C(C)(C)C)C1C=CC(N(C)C)=CC=1)P(C1C=CC(N(C)C)=CC=1)(C(C)(C)C)C(C)(C)C>[N:1]([CH:4]([C:6]1[N:7]=[C:8]2[S:16][CH:15]=[C:14]([CH3:17])[N:9]2[C:10](=[O:13])[C:11]=1[C:23]1[CH:24]=[C:19]([F:18])[CH:20]=[CH:21][C:22]=1[F:25])[CH3:5])=[N+:2]=[N-:3]

Komponenten

Reaktionsbedingungen

Temperatur: 100 °C

Versuchsvorschrift

To a mixture of 7-(1-azidoethyl)-6-bromo-3-methyl-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one (0.080 g, 0.25 mmol) and (2,5-difluorophenyl)boronic acid (0.048 g, 0.30 mmol) in 1,4-dioxane (2 mL) was added a 1 N solution of sodium carbonate in water (0.38 mL, 0.38 mmol) and dichloro(bis{di-tert-butyl[4-(dimethylamino)phenyl]phosphoranyl})palladium (0.011 g, 0.015 mmol). The mixture was stirred at 100° C. overnight. After cooled to room temperature, the mixture was diluted with ethyl acetate, washed with water, dried over MgSO4, then concentrated and purified on silica gel (0-25% ethyl acetate/hexane) to give the desired product as a diastereoisomer mixture (54 mg). LCMS calculated for C15H12F2N5OS (M+H)+: m/z=348.1; Found: 348.0.

Aufarbeitung

temperatureAfter cooled to room temperature
washwashed with water
dry with materialdried over MgSO4
concentrationconcentrated
custompurified on silica gel (0-25% ethyl acetate/hexane)

Quellen und Nachweise

ORD-Eintrag: ord-15db6db47a7344f1abf22525d056631a
Quelldatensatz: uspto-grants-2016_09
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US09434746B2

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