反应详情

Bicyclo[2.2.1]hept-2-yl-acetic acid (0.20 mL), N,N-diisopropyl-ethylamine (0.50 mL) and N-[(dimethylamino)-1H-1,2,3-triazolo-[4,5-b]pyridin-1-yl-methylene]-N-methyl-methanaminium hexafluoro-phosphate N-oxide (0.55 g) were mixed in dry N,N-dimethylformamide (3 mL) and stirred under argon for 2 minutes. 2,4-Difluoro-6-morpholin-4-yl-phenylamine (0.20 g) dissolved in dry N,N-dimethylformamide (2 mL) was added to the reaction mixture, which was stirred at 60° C. under argon for 16 hours. Ethyl acetate (20 mL) was added and the organic phase was washed with saturated aqueous ammonium chloride/water (1:1, 20 mL), water (20 mL), brine/water (1:1, 20 mL), dried over magnesium sulfate, concentrated in vacuo and purified by flash chromatography to furnish 0.17 g (51% yield) of the title compound as a white solid. LC-MS (m/z) 351 (MH+); tR=2.94, (UV, ELSD) 96%, 99%. 1H NMR (500 MHz, DMSO-d6): 1.12 (m, 4H), 1.41 (m, 4H), 1.87 (m, 1H), 1.99 (d, 2H), 2.13 (dd, 1H), 2.20 (m, 1H), 2.27 (dd, 1H), 2.88 (t, 4H), 3.70 (t, 4H), 6.72 (m, 1H), 6.89 (dt, 1H), 9.10 (s, 1H).

1. additionwas added to the reaction mixture, which
2. stirringwas stirred at 60° C. under argon for 16 hours
3. washthe organic phase was washed with saturated aqueous ammonium chloride/water (1:1, 20 mL), water (20 mL), brine/water (1:1, 20 mL)
4. dry with materialdried over magnesium sulfate
5. concentrationconcentrated in vacuo
6. custompurified by flash chromatography