反应详情

To the product of Step 4 (20 mg, 0.034 mmol) in DCM (1 mL) was added TFA (133 μL, 1.722 mmol). The mixture was stirred at ambient temperature for 1 hr. LCMS indicated complete reaction. To the reaction was added saturated aqueous NaHCO3 to adjust pH>8 and the product was extracted with ethyl acetate, The combined organic layer was dried, filtered and solvent removed in vacuo to afford 15 mg (0.031 mol, 91%) of N-(3-[2-(1-hydroxycyclobutyl)-1,3-thiazol-5-yl]-5-{[4-(piperidin-4-yloxy)pyrimidin-2-yl]amino}phenyl)acetamide as pale yellow oil. MS ESI: [M+H]+ m/z 481.2. 1H NMR (600 MHz, CD3OD): δ 8.16 (m, 2H); 7.90 (s, 1H); 7.55 (s, 1H); 7.30 (s, 1H); 6.26 (d, J=5.4 Hz, 1H); 5.58 (m, 1H); 3.34 (m, 2H); 3.21 (m, 2H); 2.65 (m, 2H); 2.40 (m, 2H); 2.22 (m, 2H); 2.14 (s, 3H); 2.01 (m, 4H). rhSYK activity=+++

1. customreaction
2. extractionthe product was extracted with ethyl acetate
3. customThe combined organic layer was dried
4. filtrationfiltered
5. customsolvent removed in vacuo