Tetrahydrofuran → HCID 86731189, compound

Participants

Reaction Steps

A mixture of tert-butyl ((2S)-1-((2-(4-(benzyloxy)-3-fluorophenyl)-1,3-benzoxazol-6-yl)oxy)propan-2-yl)carbamate (4.26 g), 10% palladium-carbon (containing water (50%), 0.920 g) and THF (40 mL) was stirred at room temperature for 1 hr and min under a hydrogen atmosphere. The catalyst was removed by filtration, and the obtained filtrate was concentrated under reduced pressure. The obtained residue was dissolved in ethyl acetate, and the solution was subjected to silica gel chromatography (ethyl acetate), and the solvent was evaporated. To a solution of the obtained residue in DMF (40 mL) were added potassium carbonate (1.32 g) and bromoacetone (0.888 mL), and the mixture was stirred overnight at 60° C. The reaction mixture was diluted with ethyl acetate, and washed with saturated brine, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound (4.67 g).

Provenance & Evidence