反应详情

To a mixture of N′-(2-((3-(4-fluorophenyl)-2-oxopropyl)carbamoyl)-3-hydroxy-4-oxo-6,7,8,9-tetrahydro-7,10-ethanopyrimido[1,2-a]azepin-10(4H)-yl)-N,N-dimethylethanediamide, Intermediate 15 (140 mg, 0.273 mmol) in DMF (5 mL) was added K2CO3 (67.8 mg, 0.491 mmol) followed by (bromomethyl)benzene (0.049 mL, 0.409 mmol) and the resulting mixture stirred at room temp for 16 h. Water was then added and the mixture was extracted with ethyl acetate (2×50 mL), dried (Na2SO4), filtered and concentrated. The crude product was purified by silica gel chromatography to afford the title compound (140 mg, 0.162 mmol, 59.5% yield) as a yellow oil. 1H NMR (500 MHz, CDCl3) δ ppm 8.73 (1H, s), 8.31 (1H, s), 7.53-7.59 (2H, m), 7.31-7.38 (3H, m), 7.18-7.24 (2H, m), 7.02-7.07 (2H, m), 5.35 (2H, s), 4.73 (2H, s), 4.29 (2H, d, J=5.49 Hz), 4.16 (2H, d, J=3.66 Hz), 2.94 (3H, s), 2.91 (3H, s), 2.70-2.79 (2H, m), 2.53 (1H, br. s.), 1.98-2.12 (4H, m), 1.70-1.80 (2H, m). LCMS (M+H)=604.31.

1. extractionthe mixture was extracted with ethyl acetate (2×50 mL)
2. dry with materialdried (Na2SO4)
3. filtrationfiltered
4. concentrationconcentrated
5. customThe crude product was purified by silica gel chromatography