Sodium Thiosulfate → HCID 69521212, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 7-[4-(2-butoxyethoxy)phenyl]-1-isobutyl-N-[4-(2-methylimidazo[1,2-a]pyridin-5-ylthio)phenyl]-2,3-dihydro-1H-benzazepine-4-carboxamide (0.50 g) in dichloromethane (10 ml) was added dropwise a solution of 3-chloroperbenzoic acid (70%, 0.27 g) in dichloromethane (10 ml) at −78° C. The mixture was stirred at −20° C. for 18 hours, sodium thiosulfate solution was added to the mixture at room temperature and the mixture was stirred for several minutes. The mixture was extracted with ethyl acetate, and the organic layer was washed with sodium bicarbonate solution and saturated brine, dried over magnesium sulfate and concentrated under reduced pressure. The obtained residue was separated and purified by column chromatography (basic silica gel, ethyl acetate:hexane 1:1→2:1), to give 7-[4-(2-butoxyethoxy)phenyl]-1-isobutyl-N-[4-(2-methylimidazo[1,2-a]pyridin-5-ylsulfinyl)phenyl]-2,3-dihydro-1H-benzazepine-4-carboxamide (Compound 171) (110.5 mg) as yellow crystals.

Provenance & Evidence