(3R,6S,7aS)-3-Phenyl-6-(phenylsulfanyl)perhydropyrrolo[1,2-c]oxazol-5-one

Abstract

Molecules of the title compound [systematic name: (2R,5S,7S)-2-phenyl-7-phenylsulfanyl-1-aza-3-oxabicyclo[3.3.0]octan-8-one], C18H17NO2S, form high quality crystals even though they are only packed using C—H...O(carbonyl) and weak C—H...S interactions. The dihedral angle between the aromatic rings is 85.53 (5)°. The fused rings adopt envelope and twist conformations.