反应详情

温度

160 °C

A mixture of 5-bromo-4-chloro-2-(2,5-dimethyl-1H-pyrrol-1-yl)-6-methylpyrimidine (1.50 g, 4.99 mmol), trans-4-aminocyclohexanol hydrochloride (1.17 g, 6.24 mmol), and diisopropylethyl amine (2.61 mL, 15.0 mmol) in dimethylacetamide (25.0 mL) was heated at 160° C. in a sealed tube overnight. The reaction mixture was diluted with methyltertbutyl ether (400 mL), washed with saturated ammonia chloride (2×) and brine, dried (MgSO4), filtered, and concentrated. The combined aqueous layers were extracted with dichloromethane (3×150 mL), dried (MgSO4), filtered, and concentrated. The crude product was purified by flash chromatography eluting with chloroform/methanol (0.5-3%) to afford trans-4-(5-bromo-2-(2,5-dimethyl-1H-pyrrol-1-yl)-6-methylpyrimidin-4-ylamino)cyclohexanol (1.76 g, 93%).

1. washwashed with saturated ammonia chloride (2×) and brine
2. dry with materialdried (MgSO4)
3. filtrationfiltered
4. concentrationconcentrated
5. extractionThe combined aqueous layers were extracted with dichloromethane (3×150 mL)
6. dry with materialdried (MgSO4)
7. filtrationfiltered
8. concentrationconcentrated
9. customThe crude product was purified by flash chromatography
10. washeluting with chloroform/methanol (0.5-3%)