反应详情

温度

50 °C

A mixture of 1-(piperidin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (620 mg, 2.2 mmol), 2-((3,5-dichlorophenyl)amino)acetic acid (475 mg, 2.2 mmol, 1 eq), HBTU (822 mg, 2.2 mmol, 1 eq) and DIPEA (560 mg, 4.4 mmol, 2.0 eq) in THF (10 mL) was heated to 50° C. for 16 h. The mixture was concentrated in vacuo and purified by silica gel column with EA in PE (20% to 100%, v/v) to give the title product (63 mg, yield: 7%). 1H NMR (400 MHz, DMSO-d6) δ: 8.21 (d, 1H), 8.11 (d, 1H), 7.85-7.65 (m, 2H), 6.76 (s, 1H), 6.73 (s, 1H), 6.60 (d, 1H), 6.32 (t, 1H), 4.76-4.71 (m 0.5H), 4.61-4.54 (m, 1H), 4.48 (d, 0.5H), 4.19 (d, 0.5H), 4.11-4.08 (m, 1H), 4.02-3.94 (m, 1.5H), 3.86-3.81 (m, 0.5H), 3.17-3.09 (m, 1H), 2.95-2.90 (m, 0.5H), 2.20-2.12 (m, 1H), 2.08-2.05 (m, 1H), 1.89-1.82 (m, 1H), 1.72-1.51 (m, 1H). ESI-MS: 420.1 (M+H)+.

1. concentrationThe mixture was concentrated in vacuo
2. custompurified by silica gel column with EA in PE (20% to 100%, v/v)