4,5-Difluorophthalic Anhydride → HCID 66975894, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of tert-butyl (6R,7R)-6-(aminomethyl)-7-(3,4-dichlorophenyl)-1,4-oxazepane-4-carboxylate (100 mg) in DMF (2 mL) was added 5,6-difluoro-2-benzofuran-1,3-dione (73.6 mg) at room temperature, and the mixture was stirred at 80° C. overnight. The reaction mixture was diluted with ethyl acetate. The diluted solution was washed with distilled water and brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography (hexane/ethyl acetate) to give the title compound (102 mg).

Provenance & Evidence