反应详情

To a stirred solution of 2-(methylamino)ethanol (875 mg, 10 eq) in 20 mL anhydrous THF was added NaH (373 mg, 8.0 eq) at 0° C., and the mixture was stirred at rt for 1 h, 4-(1-(6-Chloropyridin-3-yl)-2-(2,3-dihydrobenzofuran-5-yl)but-1-enyl)phenol (440 mg, 1.0 eq) was added. The mixture was refluxed for 16 h, cooled, quenched with sat. NH4Cl, and extracted with CH2Cl2. The extract was dried, concentrated, and purified by column chromatography to give the desired product (197 mg, 41%). 1H NMR (400 MHz, CDCl3) δ 8.06 (d, J=2.4 Hz, 0.5H), 7.60 (d, J=2.0 Hz, 0.5H), 7.32 (dd, J=8.4 Hz, 2.4 Hz, 0.5H), 7.07 (dd, J=8.4 Hz, 2.4 Hz, 0.5H), 7.03 (d, J=8.8 Hz, 1H), 6.93 (d, J=8.4 Hz, 1H), 6.83 (d, J=8.4 Hz, 0.5H), 6.78 (d, J=8.4 Hz, 1.5H), 6.69 (d, J=8.4 Hz, 1H), 6.65 (d, J=8.4 Hz, 0.5H), 6.59 (d, J=8.0 Hz, 1H), 6.49 (d, J=8.8 Hz, 1H), 6.36 (d, J=8.4 Hz, 0.5H), 4.53 (t, J=8.4 Hz, 2H), 4.46 (t, J=5.2 Hz, 1H), 4.31 (t, J=5.2 Hz, 1H), 3.10 (t, J=8.4 Hz, 2H), 3.05 (t, J=5.2 Hz, 1H), 2.96 (t, J=5.2 Hz, 1H), 2.55 (s, 1.5H), 2.50 (s, 1.5H), 2.45 (q, J=7.6 Hz, 2H), 0.94 (t, J=7.2 Hz, 3H); m/z=417[M+1]+.

1. temperatureThe mixture was refluxed for 16 h
2. temperaturecooled
3. customquenched with sat. NH4Cl
4. extractionextracted with CH2Cl2
5. customThe extract was dried
6. concentrationconcentrated
7. custompurified by column chromatography