Tetrabutylammonium Fluoride → tert-butyl (6R,7S)-6-amino-7-(3,4-dichlorophenyl)-1,4-oxazepane-4-carboxylate

Participants

Reaction Conditions

Reaction Steps

To a solution of tert-butyl (6R,7S)-7-(3,4-dichlorophenyl)-6-({[2-(trimethylsilyl)ethoxy]carbonyl}amino)-1,4-oxazepane-4-carboxylate (0.67 g) in THF (5 mL) was added tetra-n-butylammonium fluoride (5.2 mL) at room temperature, and the mixture was stirred at 50° C. for 5 hr. 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 to give the title compound (0.4 mg).

Provenance & Evidence