反应详情

A mixture of N-(5-cyclopropyl-1H-pyrazol-3-yl)-2-(piperidin-1-yl)-5-((trimethylsilyl)ethynyl)pyrimidin-4-amine (101 mg, 0.27 mmol), K2CO3 (74.5 mg, 0.54 mmol, 2.0 eq) in EtOH (4 ml) was stirred at room temperature for 1 h. The mixture was filtered, the filtration was washed with water, extracted with EtOAc, dried (Na2SO4). EtOAc was removed by evaporation, the residue was recrystalized from ether to afford compound N-(5-cyclopropyl-1H-pyrazol-3-yl)-5-ethynyl-2-(piperidin-1-yl)pyrimidin-4-amine (Compound 172) (68 mg, 81.9%). MS (m/z): 309.1 [M+H]+. 1H NMR (400 MHz, DMSO-d6): δ 0.66-0.68 (m, 2H), 0.95 (d, J=6.8 Hz, 2H), 1.53 (d, J=3.6 Hz, 4H), 1.63-1.66 (m, 2H), 1.89-1.93 (m, 1H), 3.75 (t, J=5.4 Hz, 4H), 4.54 (s, 1H), 6.25 (bs, 1H), 7.94 (bs, 1H), 8.14 (s, 1H), 12.17 (bs, 1H).

1. filtrationThe mixture was filtered
2. filtrationthe filtration
3. washwas washed with water
4. extractionextracted with EtOAc
5. dry with materialdried (Na2SO4)
6. customEtOAc was removed by evaporation
7. customthe residue was recrystalized from ether