Sodium Thiosulfate → HCID 21829904, compound

Participants

Reaction Steps

To a solution of N-(2,5-difluorophenyl)-2-(5-phenylthiazolidin-4-on-3-yl)isobutyramide (1.3 g) prepared according to Example 13 in dichloromethane (25 mL) was added portionwise 70% m-chloroperbenzoic acid (1 g) under ice-cooling, and the mixture was stirred for 30 minutes at room temperature. After adding a small amount of sodium thiosulfate, the mixture was diluted with chloroform and washed with a saturated sodium hydrogencarbonate aqueous solution. After distilling off the solvent under reduced pressure, the resulting crude product was purified by preparative thin-layer chromatography (developing solvent: chloroform/ethyl acetate=3/1) to give crystals, which were washed with a mixture of isopropyl ether-ethanol (10:1) to give 0.26 g of the title compound as crystals.

Provenance & Evidence