反应详情

温度

50 °C

4-((1R,3R,4R)-3-Hydroxy-4-methylcyclohexylamino)-2-(isopropylamino)pyrimidine-5-carbonitrile (0.38 g, 1.313 mmol) was dissolved in DMSO (5 mL). To this solution was added a 50% aqueous sodium hydroxide solution (0.103 ml, 1.970 mmol) and a 30% aqueous hydrogen peroxide solution (0.101 ml, 0.985 mmol) at room temperature. Then the reaction mixture was stirred at 50° C. for 1 h. After that, the reaction mixture was poured into ice water (15 mL) and the resulting mixture was stirred for 1 h. The resulting precipitate was filtered and washed with water to afford 4-((1R,3R,4R)-3-hydroxy-4-methylcyclohexylamino)-2-(isopropylamino)pyrimidine-5-carboxamide (0.210 g, 0.683 mmol, 52% yield). 1H NMR (DMSO-d6, 400 MHz) δ ppm 0.94 (d, J=6.40 Hz, 4H) 1.12 (d, J=5.91 Hz, 9H) 1.65 (dd, J=13.29, 2.95 Hz, 1H) 1.92 (br. s., 1H) 2.15 (br. s., 1H) 2.97 (br. s., 1H) 3.81-4.14 (m, 2H) 4.55 (d, J==5.41 Hz, 1H) 6.70-7.02 (m, 1H) 8.34 (br. s., 1H) 8.92 (br. s., 1H); MS (ESI) m/z 308.0 [M+1]+.

1. customat room temperature
2. stirringthe resulting mixture was stirred for 1 h
3. filtrationThe resulting precipitate was filtered
4. washwashed with water