反应详情

N-{5-[(2-Amino[1,3]thiazolo[5,4-b]pyridin-5-yl)oxy]-2-chlorophenyl}-2,2,2-trifluoroacetamide (1.8 g, 4.63 mmol) and N,N-dimethylpyridine-4-amine (566 mg, 4.63 mmol) were dissolved in pyridine (9.25 mL), acetyl chloride (0.658 mL, 9.25 mmol) was added dropwise under ice-cooling, and the mixture was stirred at room temperature for 16 hr. The reaction mixture was diluted with ethyl acetate (80 mL)/water (50 mL), and the organic layer was collected, and washed with saturated brine (50 mL). The mixture was dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residual solid was crystallized from toluene/diisopropyl ether (1:3), collected by filtration, and dried to give the title compound (1.69 g, 85%) as a pale-yellow solid.

1. temperaturecooling
2. customthe organic layer was collected
3. washwashed with saturated brine (50 mL)
4. dry with materialThe mixture was dried over anhydrous magnesium sulfate
5. concentrationconcentrated under reduced pressure
6. customThe residual solid was crystallized from toluene/diisopropyl ether (1:3)
7. filtrationcollected by filtration
8. customdried