Dimethylformamide → 4'-({3-butyl-1-[2-(4-fluorophenyl)-2-oxoethyl]-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl}methyl)biphenyl-2-carbonitrile

A mixture of 4′-[(3-butyl-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)methyl]biphenyl-2-carbonitrile (0.7 g), potassium tert-butoxide (1.0 M tetrahydrofuran solution, 1.75 mL) and N,N-dimethylformamide (10 mL) was stirred at room temperature for 10 min, 2-bromo-1-(4-fluorophenyl)ethanone (0.35 g) was added, and the mixture was stirred at room temperature for 16 hr. The reaction mixture was diluted with ethyl acetate, washed with 5% aqueous potassium hydrogen sulfate solution and then 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 (0.6 g, 88%).

1. stirringthe mixture was stirred at room temperature for 16 hr
2. washwashed with 5% aqueous potassium hydrogen sulfate solution
3. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
4. customThe solvent was evaporated under reduced pressure
5. customthe residue was purified by silica gel column chromatography

ORD-Eintrag

ord-c7988f9bdc61494b92783f43119aa065

Quelldatensatz

uspto-grants-2010_09

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US07803940B2