Sodium Thiosulfate → HCID 18472310, compound

Participants

Reaction Steps

To a solution of N-[4—(3-methoxymethoxypyridin-2-ylmethyl)phenyl]-7—(4-methylphenyl)-2,3-dihydro-1-benzoxepine-4-carboxamide (300 mg) in tetrahydrofuran (10 ml) was added 3-chloroperbenzoic acid (70%, 0.22 g) at 0° C., and the mixture was stirred at room temperature for 18 hours. To the mixture was added sodium thiosulfate, and the mixture was stirred for a few minutes. The mixture was extracted with ethyl acetate, and the organic layer was washed with saturated sodium bicarbonate solution and saturated sodium chloride solution, dried with magnesium sulfate and concentrated under reduced pressure. The residue was separated and purified with column chromatography (ethanol/ethyl acetate=1:15→1:10), and recrystallized from ethanol to give N-[4—(1-oxido-3-methoxymethoxypyridin-2-ylmethyl)phenyl]-7—(4-methylphenyl)-2,3-dihydro-1-benzoxepine-4-carboxamide (Compound 173) (203 mg) as colorless crystals.

Provenance & Evidence