反应详情

To a mixture of N-{1-[8-(4-{[tert-butyl(dimethyl)silyl]oxy}piperidin-1-yl)-5-chloroquinolin-7-yl]ethyl}-9H-purin-6-amine (0.200 g, 0.372 mmol) in acetonitrile (1 mL) was added 2.0 M fluorosilicic acid in water (0.929 mL, 1.86 mmol). The reaction was stirred at room temperature for 30 minutes, then neutralized with aq. sodium hydroxide and extracted with dichloromethane. The extracts were combined and evaporated to dryness. The residue was purified on a RP-HPLC (XBridge C18 column, eluting with a gradient of acetonitrile in water with 0.2% ammonium hydroxide, at a flow rate of 30 mL/min) to give the desired product as the free base. LCMS calculated for C21H23ClN7O (M+H)+: m/z=424.2; Found: 424.1. 1H NMR (DMSO-d6, 400 MHz) δ 12.89 (1H, s), 8.95 (1H, m), 8.44 (1H, m), 8.27 (1H, m), 8.11 (1H, s), 8.01 (1H, s), 7.99 (1H, s), 7.58 (1H, dd, J=8.4 and 4.0 Hz), 6.35 (1H, br s), 4.67 (1H, m), 4.01 (1H, m), 3.76 (1H, m), 3.61 (1H, m), 2.78 (1H, m), 1.90 (2H, m), 1.79˜1.61 (3H, m), 1.52 (3H, d, J=7.2 Hz) ppm.

1. extractionextracted with dichloromethane
2. customevaporated to dryness
3. customThe residue was purified on a RP-HPLC (XBridge C18 column
4. washeluting with a gradient of acetonitrile in water with 0.2% ammonium hydroxide, at a flow rate of 30 mL/min)