(S)-tert-Butyl 3-(3-phenyl-1,2,4-oxadiazol-5-yl)piperidine-1-carboxylate

The title compound, C18H23N3O3, crystallized with two independent molecules (A and B) in the asymmetric unit. The phenyl ring and the 1,2,4-oxadiazole ring are inclined to one another by 19.9 (3)° in molecule A and 7.3 (3)° in molecule B. The absolute structure of the title compound was referred to the transfered chiral center (S) of one of the starting reactants. In the crystal, A molecules are linked by C—H...N interactions involving the two oxadiazole N atoms.