反应详情

12.0 M Formaldehyde in water (0.4 mL, 5 mmol) was added to a mixture of N-[1-(5-chloro-2-methoxy-4-methyl-3-piperidin-4-ylphenyl)ethyl]-9H-purin-6-amine (200 mg, 0.5 mmol) and DIPEA (0.35 mL, 2.0 mmol) in methylene chloride (5 mL) at 0° C. The reaction was stirred for 10 minutes, and after this time sodium triacetoxyborohydride (160 mg, 0.75 mmol) was added. The reaction was stirred at 0° C. for 1 hour. The mixture was purified on RP-HPLC (XBridge C18 Column, eluting with a gradient of acetonitrile in water with 0.2% ammonium hydroxide, at flow rate of 30 mL/min) to give the desired product. LCMS calculated for C21H28ClN6O (M+H)+: m/z=415.2. found: 415.3. 1H NMR (DMSO-d6, 500 MHz) δ 9.67 (1H, br s), 8.72 (1H, br s), 8.35 (2H, s), 7.51 (1H, s), 5.75 (1H, m), 3.88 (3H, s), 3.49 (2H, m), 3.34 (1H, m), 3.12 (2H, m), 2.81 (1.5H, s), 2.80 (1.5H, s), 2.44-2.31 (2H, m), 2.36 (3H, s), 1.79 (2H, m), 1.49 (3H, d, J=6.5 Hz) ppm.

1. stirringThe reaction was stirred at 0° C. for 1 hour
2. customThe mixture was purified on RP-HPLC (XBridge C18 Column
3. washeluting with a gradient of acetonitrile in water with 0.2% ammonium hydroxide, at flow rate of 30 mL/min)