Pyridine → HCID 23121896, compound

Participants

Reaction Steps

To a solution of hexahydro-1,1-diphenyl-3H-oxazolo[3,4-a]pyrazin-3-one (50 mg, 0.17 mmol) in chloroform (2 mL) were sequentially added pyridine (0.5 mL) and (E)-2-(4-fluorophenyl)vinylsulfonyl chloride (43 mg, 0.24 mmol), and the mixture was stirred at room temperature for 2 hours. The reaction solution was concentrated under reduced pressure. The residue was purified with silica gel column chromatography (hexane:ethyl acetate=1:1) and crystallized from diisopropyl ether to obtain the title compound (27 mg, yield 64%).

Provenance & Evidence