反应详情

温度

-78 °C

5-Bromo-2-methoxypyridine (0.019 mL, 0.15 mmol) was added to a solution of (2,4-dichloro-3-phenylquinolin-6-yl)(3-methylisoxazol-5-yl)methanone (44.1 mg, 0.115 mmol, Intermediate 3: step b) in THF (1 mL) under a nitrogen atmosphere. The mixture was cooled to −78° C. and n-BuLi (1.6 M in hexane, 0.094 mL, 0.150 mmol) was added dropwise. The mixture was stirred at −78° C. for 30 minutes, then moved to an ice bath and stirred for 30 minutes. The reaction was quenched by addition of saturated aqueous NH4Cl and was diluted with water. The mixture was extracted three times with EtOAc. The organic phase was dried (Na2SO4), filtered, and concentrated to dryness. The crude product was purified by RP-HPLC (10-90% CH3CN—H2O, 0.1% TFA) to afford the title compound along with the intended product (2,4-dichloro-3-phenylquinolin-6-yl)(6-methoxypyridin-3-yl)(3-methylisoxazol-5-yl)methanol. 1H NMR (400 MHz, DMSO-d6) δ 8.41 (s, 1H), 8.06 (d, J=8.80 Hz, 1H), 7.93 (d, J=8.80 Hz, 1H), 7.47-7.60 (m, 3H), 7.38-7.47 (m, 2H), 6.55 (br. s., 1H), 6.33 (s, 1H), 2.22-2.36 (m, 2H), 2.20 (s, 3H), 1.17-1.36 (m, 3H), 0.92-1.10 (m, 1H), 0.81 (t, J=6.97 Hz, 3H); MS m/e 441.1 (M+H)+.

1. custommoved to an ice bath
2. stirringstirred for 30 minutes
3. customThe reaction was quenched by addition of saturated aqueous NH4Cl
4. additionwas diluted with water
5. extractionThe mixture was extracted three times with EtOAc
6. dry with materialThe organic phase was dried (Na2SO4)
7. filtrationfiltered
8. concentrationconcentrated to dryness
9. customThe crude product was purified by RP-HPLC (10-90% CH3CN—H2O, 0.1% TFA)