反应详情

The product from Example 277B (100 mg, 0.287 mmol) in THF (2 mL) was treated with NaH (95%, 8.7 mg, 0.344 mmol). After stirring at room temperature for 20 minutes, the mixture was treated with methyl iodide (1.2 eq, 21.4 μL) and stirred for 1 hour. The mixture was concentrated under reduced pressure and CH2Cl2 (10 mL) was added. The organic layer was washed with water (5 mL×3), dried (Na2SO4), filtered, and the filtrate concentrated under reduced pressure to provide the title compound. MS (ESI+) m/z 363 (M+H)+; MS (ESI−) m/z 361 (M−H)−; 1H NMR (DMSO, 300 MHz) rotamers δ 1.25 (s, 9H), 3.32 (s, 3H), 4.27 (d, J 6.1, 2H), 5.37 (s, 1H), 7.18 (d, J 8.5, 2H), 7.32 (d, J 8.5, 2H), 7.70 (t, J 7.1, 1H), 7.83 (d, J 6.1, 1H), 8.07 (m, 2H), 8.43 (d, J 6.1, 1H), 8.80 (t, J 6.1, 1H), 9.35 (s, 1H); Anal. Calcd for C23H26N2O2+0.3H2O: C, 75.09; H, 7.29; N, 7.61. Found: C, 75.02; H, 7.34; N, 7.43.

1. stirringstirred for 1 hour
2. concentrationThe mixture was concentrated under reduced pressure and CH2Cl2 (10 mL)
3. additionwas added
4. washThe organic layer was washed with water (5 mL×3)
5. dry with materialdried (Na2SO4)
6. filtrationfiltered
7. concentrationthe filtrate concentrated under reduced pressure