反应详情

温度

90 °C

To a stirring suspension of 2-(tert-butylamino)-4-(methylsulfinyl)pyrimidine-5-carboxamide (0.092 g, 0.359 mmol) and (1R,2R,5R)-5-amino-2-methylcyclohexanol hydrochloride (0.065 g, 0.395 mmol) in DMF (2 mL) was added N-ethyl-N-isopropylpropan-2-amine (0.157 mL, 0.897 mmol) and the reaction was heated to 90° C. overnight. The crude reaction mixture was concentrated under reduced pressure and then ice-cold water (20 mL) was added to the residue. The resulting mixture was vigorously stirred for 1 h and then the product was filtered, washed with water and dried under vacuum to afford 2-(tert-butylamino)-4-((1R,3R,4R)-3-hydroxy-4-methylcyclohexylamino)pyrimidine-5-carboxamide (0.074 g, 0.230 mmol, 64.1% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 8.94 (br. s., 1H), 8.34 (s, 1H), 6.69 (br. s., 1H), 4.59 (d, J=5.47 Hz, 1H), 3.87 (br. s., 1H), 2.92-3.01 (m, 1H), 2.14 (d, J=10.15 Hz, 1H), 1.91 (d, J=11.71 Hz, 1H), 1.67 (dd, J=13.28, 3.12 Hz, 1H), 1.07-1.24 (m, 3H), 0.91-0.99 (m, 4H). MS (ESI) m/z 322.3 [M+1]+.

1. customThe crude reaction mixture
2. concentrationwas concentrated under reduced pressure
3. additionice-cold water (20 mL) was added to the residue
4. filtrationthe product was filtered
5. washwashed with water
6. customdried under vacuum