反应详情

温度

85 °C

To a mixture of (+/−)-cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methanamine hydrochloride (1.002 g, 2.680 mmol) and potassium carbonate (1.51 g, 10.7 mmol) in N,N-dimethylformamide (5.36 mL) was added methyl 6-fluoronicotinate (472 mg, 2.95 mmol). The reaction was heated to 85° C. After 15 h, the reaction was cooled to room temperature, diluted with water (50 mL), and extracted with ethyl acetate (3×50 mL). The combined organics were dried (Na2SO4) and filtered, and the filtrate was concentrated under reduced pressure. Purification by column chromatography (ethyl acetate/heptane) gave methyl (+/−)-6-((cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methyl)amino)nicotinate. 1H NMR (400 MHz, CDCl3, δ): 8.67 (d, J=1.6 Hz, 1H), 7.99 (dd, J=9.0, 2.0 Hz, 1H), 7.93 (s, 1H), 7.75 (s, 1H), 7.12 (s, 2H), 6.28 (d, J=9.0 Hz, 1H), 4.43-4.33 (m, 1H), 3.87 (s, 3H), 2.36-2.23 (m, 1H), 2.04-1.97 (m, 7H), 1.77-1.41 (m, 6H), 1.37-1.28 (m, 1H). MS (M+1): 4732.

1. temperaturethe reaction was cooled to room temperature
2. extractionextracted with ethyl acetate (3×50 mL)
3. dry with materialThe combined organics were dried (Na2SO4)
4. filtrationfiltered
5. concentrationthe filtrate was concentrated under reduced pressure
6. customPurification by column chromatography (ethyl acetate/heptane)