反应详情

2-(1-(4-((1-(5-Chloro-2-methoxypyridin-4-yl)-3-methylpiperidin-4-yl)oxy)phenyl)-4-ethyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-yl)acetonitrile: To a solution of 2-(4-ethyl-1-(4-hydroxyphenyl)-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-yl)acetonitrile (174 mg, 0.58 mmol) and (3R,4S)-1-(5-chloro-2-methoxypyridin-4-yl)-3-methylpiperidin-4-ol (150 mg, 0.58 mmol) in THF (195 μl) was added triphenylphosphine (215 mg, 0.82 mmol). The reaction vessel was then lowered into a sonication bath and sonicated for several minutes (to allow for mixing) giving a clear and highly viscous solution. While sonicating, (E)-di-tert-butyl diazene-1,2-dicarboxylate (161 mg, 0.70 mmol) was added dropwise to the reaction mixture, and the reaction mixture was sonicated for 120 min. LCMS showed the desired mass of product. Then, sat. aq. NaHCO3 (10 mL) was added slowly to the reaction mixture. The mixture was then extracted with EtOAc (2×10 mL), and the combined organic extracts were washed with water (20 mL) and brine (20 mL), and dried (Na2SO4), filtered, and concentrated. Purification by chromatography gave 2-((4S,5S)-1-(4-((1-(5-chloro-2-methoxypyridin-4-yl)-3-methylpiperidin-4-yl)oxy)phenyl)-4-ethyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-yl)acetonitrile (80 mg, 0.15 mmol, 26% yield) an oil. LC-MS Anal. Calc'd for C26H29ClF3N5O2 535.20. found [M+H] 536.0.

1. customThe reaction vessel was then lowered into a sonication bath
2. customsonicated for several minutes
3. addition(to allow for mixing)
4. customgiving a clear and highly viscous solution
5. customWhile sonicating
6. customthe reaction mixture was sonicated for 120 min
7. extractionThe mixture was then extracted with EtOAc (2×10 mL)
8. washthe combined organic extracts were washed with water (20 mL) and brine (20 mL)
9. dry with materialdried (Na2SO4)
10. filtrationfiltered
11. concentrationconcentrated
12. customPurification by chromatography