Water → HCID 68649854, compound

Participants

Reaction Steps

To a solution of 8-[4-(2-butoxyethoxy)phenyl]-1-isobutyl-N-[4-[[[1-propylimidazol-2-yl]methyl]sulfanyl]phenyl]-1,2,3,4-tetrahydro-1-benzoazocine-5-carboxamide (400 mg) in dichloromethane (10 ml) was added dropwise a 70% solution of 3-chloro-per-benzoic acid (217 mg) in dichloromethane (10 ml) at −78° C. After stirring as such for 1 hour, dimethyl sulfide (0.1 ml) was added. The mixture was returned to room temperature and stirred for 30 minutes, after which water was added and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium bicarbonate solution and saturated aqueous brine, and was dried with magnesium sulfate. The solvent was distilled off under reduced pressure, and the resulting residue was separated and purified by basic silica gel column chromatography (hexane:ethyl acetate=1:4→ethyl acetate) and recrystallized from diisopropyl ether-ethyl acetate to give 8-[4-(2-butoxyethoxy)phenyl]-1-isobutyl-N-[4-[[[1-propylimidazol-2-yl]methyl]sulfinyl]phenyl]-1,2,3,4-tetrahydro-1-benzoazocine-5-carboxamide (245 mg) as yellow crystals (Compound 16).

Provenance & Evidence