反应详情

温度

0 °C

As shown in step 5-iii of Scheme 5,3-(1-(4-(3-bromobutoxy)-2,3-difluorophenyl)-1H-tetrazol-5-yl)-5-(1-isopentyl-1H-pyrazol-4-yl)pyridin-2-amine (Compound 1021, 111 mg, 0.203 mmol) was dissolved in 5 mL of THF and cooled to 0° C. The mixture was treated with piperidine (0.06 mL, 0.61 mmol), warmed to 70° C., and stirred for 16 hours. The reaction was cooled to room temperature, treated with cold water, and extracted with CHCl3 (50 mL). The organics were washed with water, washed with brine, dried over sodium sulfate, filtered, and the volatiles removed under reduced pressure. The residue was purified by silica gel chromatography (5% MeOH/CHCl3) to provide 3-(1-(4-(3-(piperidin-1-yl)propoxy)-2,3-difluorophenyl)-1H-tetrazol-5-yl)-5-(1-isopentyl-1H-pyrazol-4-yl)pyridin-2-amine (Compound 150, 70 mg, 78% yield).

1. temperaturewarmed to 70° C.
2. temperatureThe reaction was cooled to room temperature
3. extractionextracted with CHCl3 (50 mL)
4. washThe organics were washed with water
5. washwashed with brine
6. dry with materialdried over sodium sulfate
7. filtrationfiltered
8. customthe volatiles removed under reduced pressure
9. customThe residue was purified by silica gel chromatography (5% MeOH/CHCl3)