反应详情

温度

100 °C

To a solution of (R)-2,6-dichloro-5-methyl-N-(tetrahydrofuran-3-yl)pyrimidin-4-amine (1.8 g, 7.3 mmol) in degassed dioxane and H2O (4/1, 21 mL) was added Na2CO3 (1.5 g, 14.5 mmol); Pd(PPh3)4 (296 mg, 0.36 mmol) and 3-hydroxy-phenylboronic acid (1.21 g, 8.8 mmol). The system was purged with nitrogen stream and then stirred at 100° C. for 14 h., cooled down to room temperature, diluted with water (30 mL) and the resulting mixture extracted with EtOAc (30 mL×2). The combined organic layer were dried over Na2SO4, filtered and concentrated. The residue was purified by chromatographic column on silica gel (EtOAc/petroleum ether, gradient elution, from 1/10 to 2:1) to give (R)-3-(4-chloro-5-methyl-6-(tetrahydrofuran-3-ylamino)pyrimidin-2-yl)phenol (2.4 g, 33%) as a white solid. ESI-LCMS (m/z): 306.1 [M+1]+.

1. customThe system was purged with nitrogen stream
2. temperaturecooled down to room temperature
3. additiondiluted with water (30 mL)
4. extractionthe resulting mixture extracted with EtOAc (30 mL×2)
5. dry with materialThe combined organic layer were dried over Na2SO4
6. filtrationfiltered
7. concentrationconcentrated
8. customThe residue was purified by chromatographic column on silica gel (EtOAc/petroleum ether, gradient elution, from 1/10 to 2:1)