Boron trifluoride etherate → HCID 178438653, compound

Participants

Reaction Steps

A mixture of 4′-{[4-(1,4-dioxaspiro[4.5]dec-8-yl)-2-methyl-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile (1.0 g), sodium cyanoborohydride (0.32 g), boron trifluoride etherate (0.64 mL) and tetrahydrofuran (20 mL) was heated under reflux for 15 hr. Saturated aqueous sodium hydrogen carbonate solution was 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 purified by silica gel column chromatography to give the title compound as a colorless solid (0.44 g, 42%).

Provenance & Evidence