反应详情

温度

70 °C

2-Bromoethanol (51 μl) and potassium carbonate (86 mg) were added to a mixture of 4-[3-chloro-4-fluoroanilino]-5-{[(2R)-1-glycoloylpyrrolidin-2-yl]methoxy}-quinazolin-7-ol (70 mg) in DMF and the reaction mixture was heated at 70° C. for 16 hours. The reaction mixture was cooled to room temperature and then water (5 ml) was added to leave a white precipitate. The precipitate was filtered, washed with water and then purified by column chromatography using 2-5% methanol in DCM as eluent. The product was purified further by acidic reverse phase HPLC, and then the combined fractions were reduced to a third of the initial concentration, basified with sodium carbonate and extracted with ethyl acetate. The organic layer was dried (Na2SO4) and concentrated in vacuo to give the title compound as a white solid (35 mg, 45%); NMR Spectrum (DMSO-d6 at 373 K) 9.80 (br s, 1H), 8.40 (s, 1H), 8.15 (m, 1H), 7.65 (m, 1M, 7.33 (m, 1H), 6.80 (m, 2H), 4.60 (m, 1H), 4.50 (m, 1H), 4.30-4.10 (m, 4H), 4.0 (m, 2H), 3.75 (m, 2H), 3.60 (m, 1H), 3.50-3.37 (m, 2H), 2.10-1.85 (m, 4H); Mass spectrum MH+ 491.

1. temperatureThe reaction mixture was cooled to room temperature
2. customto leave a white precipitate
3. filtrationThe precipitate was filtered
4. washwashed with water
5. custompurified by column chromatography
6. customThe product was purified further by acidic reverse phase HPLC
7. concentrationconcentration
8. extractionextracted with ethyl acetate
9. dry with materialThe organic layer was dried (Na2SO4)
10. concentrationconcentrated in vacuo