反应详情

温度

25 °C

A solution of the product of Example 2G (14 mg, 0.032 mmol), 2-bromoacetamide (9 mg, 0.064 mmol), cesium carbonate (22 mg, 0.067 mmol) and tetrabutylammonium iodide (3 mg) in N,N-dimethylformamide (0.5 mL) was stirred at 25° C. for 18 hours. The solution was acidified with 1M citric acid solution (1 mL) and extracted with ethyl acetate. The organic layer was washed with water (3×) and saturated sodium chloride solution, dried (Na2SO4), filtered and concentrated in vacuo. A suspension of the residue in acetonitrile (2 mL) was treated with 1N sodium hydroxide solution (26 μL) and stirred at 25° C. for 2 hours. The solution was lyophilized to afford the title compound (12 mg, 52%). 1H NMR (300 MHz, DMSO-d6): δ 8.12 (d, J=8.09 Hz, 1 H), 7.61 (m, 4 H), 7.31 (m, 2 H), 4.55 (s, 2 H), 2.15 (m, 2 H), 1.87 (m, 2 H), 1.29 (m, 2 H), 0.87 (m, 2 H), 0.60 (m, 7 H).

1. extractionextracted with ethyl acetate
2. washThe organic layer was washed with water (3×) and saturated sodium chloride solution
3. dry with materialdried (Na2SO4)
4. filtrationfiltered
5. concentrationconcentrated in vacuo
6. additionA suspension of the residue in acetonitrile (2 mL)
7. additionwas treated with 1N sodium hydroxide solution (26 μL)