反应详情

To a solution of tert-butyl 4-(5-chloropyrimidin-2-yl)benzylcarbamate (355 mg, 1.11 mmol) in DCM (10 mL) was added TFA (1 mL). The reaction mixture was stirred for 5 h at RT and concentrated to dryness. To the resulting residue was added DMA (3 mL), DIPEA (0.57 mL) and 2-((3-fluoro-4-nitrophenoxy)methyl)-5-methylpyridine (0.29 g, 1.11 mmol). The mixture and heated to 80° Celsius for 6 h. The mixture was then poured into water and the solids were collected by filtration to provide of the title compound (475 mg). 1H NMR (400 MHz, CDCl3) δ 8.77-8.72 (s, 2H), 8.41-8.32 (m, 2H), 8.21-8.13 (d, J=9.5, 1H), 7.49-7.39 (m, 3H), 7.26-7.21 (m, 3H), 6.38-6.30 (dd, J=9.5, 2.5, 1H), 6.27-6.21 (d, J=2.5, 1H), 5.14-5.09 (s, 2H), 4.60-4.53 (d, J=5.8, 2H), 2.30-2.25 (s, 3H).

1. concentrationconcentrated to dryness
2. temperatureThe mixture and heated to 80° Celsius for 6 h
3. filtrationthe solids were collected by filtration