反应详情

A solution of 2,5-dichloro-4-((tetrahydrofuran-3-yl)oxy)pyrimidine (intermediate 31,100 mg, 0.425 mmol) in NH3 (7 M in MeOH, 608 μl, 4.25 mmol) was heated to 70° C. and stirred for 16 h. The reaction mixture was cooled to room temperature and concentrated. The crude material was purified by normal phase chromatography (4 g silica gel cartridge, heptanes/EtOAc 100:0 to 0:100) to give the title compound as a white solid. 1H NMR (400 MHz, DMSO-d6) δ 8.04 (s, 1H), 6.78 (br. s, 2H), 5.47-5.54 (m, 1H), 3.72-3.94 (m, 4H), 2.18-2.29 (m, 1H), 1.95-2.04 (m, 1H).

1. concentrationconcentrated
2. customThe crude material was purified by normal phase chromatography (4 g silica gel cartridge, heptanes/EtOAc 100:0 to 0:100)