m-Chloroperbenzoic acid → HCID 54588460, compound

Participants

Reaction Steps

3-Chlorobenzoperoxoic acid (104 mg, 0.466 mmol) was added to a solution of (R)—N-(5-chloropyrazin-2-yl)-4H-1′-azaspiro[oxazole-5,3′-bicyclo[2.2.2]octan]-2-amine (114 mg, 0.388 mmol) in THF (3 mL) at room temperature and stirred for 2 h. The mixture was concentrated and the crude product was purified by flash chromatography on a 40 g silica gel cartridge with 10 to 30% [9:1 MeOH/NH4OH] in EtOAc, 30 min. Pure fractions were pooled, concentrated and dried. The residue was dissolved in EtOAC/MeOH 95:5, passed thru a 0.22 micron filter, concentrated and dried under high vacuum to yield (S)-2-(5-chloropyrazin-2-ylamino)-4H-1′-azaspiro[oxazole-5,3′-bicyclo[2.2.2]octane]1′-oxide (113 mg, 94% yield).

Provenance & Evidence