反应详情

To a stirred solution of N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-1-isopropyl-6-(1,2,3,6-tetrahydropyridin-4-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide (0.2 g, 0.476 mmol) in pyridine (1.5 mL), mesyl chloride (0.081 g, 0.714 mmol) was added at 0° C. and stirred it at room temperature for 1 h. After completion of reaction, solvent was removed under reduced pressure and water was added to it. Extraction was carried out using DCM; the combined organic layers were washed with water, brine and dried over anhydrous Na2SO4; filtered and concentrated under reduced pressure to afford crude material which was purified by column chromatography to give the desired compound. LCMS: 499.20 (M+1)+; HPLC: 98.22% (@ 254 nm) (Rt; 6.278); 1H NMR (DMSO-d6, 400 MHz) δ 11.55 (s, 1H), 8.85 (t, 1H), 8.31 (s, 1H), 7.86 (s, 1H), 6.94 (s, 1H), 5.89 (s, 1H), 5.22 (m, 1H), 4.38 (d, 2H, J=4.8 Hz), 3.98 (m, 2H), 3.42 (t, 2H, J=5.6 Hz), 2.96 (s, 3H), 2.84 (m, 2H), 2.21 (s, 3H), 2.13 (s, 3H), 1.50 (d, 6H, J=6.8 Hz).

1. customAfter completion of reaction, solvent
2. customwas removed under reduced pressure and water
3. additionwas added to it
4. extractionExtraction
5. washthe combined organic layers were washed with water, brine
6. dry with materialdried over anhydrous Na2SO4
7. filtrationfiltered
8. concentrationconcentrated under reduced pressure
9. customto afford crude material which
10. customwas purified by column chromatography