反应详情

温度

40 °C

A mixture of hydroxylammonium chloride (0.098 g), sodium hydrogen carbonate (0.15 g) and dimethyl sulfoxide (2 mL) was stirred at 40° C. for 30 min, 4′-({5-oxo-7-propyl-4-[trans-4-(3,3,3-trifluoro-2-hydroxypropoxy)cyclohexyl]-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrile (0.054 g) was added, and the mixture was stirred at 90° C. for 15 hr. Ethyl acetate and water were added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was dissolved in tetrahydrofuran (1 mL). N,N′-Carbonyldiimidazole (0.016 g) and then 1,8-diazabicyclo[5.4.0]undec-7-ene (0.015 mL) were added, and the mixture was stirred at room temperature for 2.5 hr. N,N′-Carbonyldiimidazole (0.016 g) and 1,8-diazabicyclo[5.4.0]undec-7-ene (0.015 mL) were added, and the mixture was stirred at room temperature for 2 hr. The reaction mixture was diluted with ethyl acetate, adjusted to pH 4 with 1 M hydrochloric acid, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography to give the title compound as a colorless solid (0.035 g, 58%).

1. stirringthe mixture was stirred at 90° C. for 15 hr
2. extractionthe mixture was extracted with ethyl acetate
3. washThe organic layer was washed with saturated brine
4. dry with materialdried over anhydrous magnesium sulfate
5. customThe solvent was evaporated under reduced pressure
6. dissolutionthe residue was dissolved in tetrahydrofuran (1 mL)
7. additionN,N′-Carbonyldiimidazole (0.016 g) and then 1,8-diazabicyclo[5.4.0]undec-7-ene (0.015 mL) were added
8. stirringthe mixture was stirred at room temperature for 2.5 hr
9. additionN,N′-Carbonyldiimidazole (0.016 g) and 1,8-diazabicyclo[5.4.0]undec-7-ene (0.015 mL) were added
10. stirringthe mixture was stirred at room temperature for 2 hr
11. additionThe reaction mixture was diluted with ethyl acetate
12. extractionthe mixture was extracted with ethyl acetate
13. washThe organic layer was washed with saturated brine
14. dry with materialdried over anhydrous magnesium sulfate
15. customThe solvent was evaporated under reduced pressure
16. customthe residue was purified by silica gel column chromatography