Abstract
The title molecule, C
18
H
19
N
3
O
3
, lies on a mirror plane that bisects the adamantyl group. In the crystal, C—H⋯O and C—H⋯N interactions lead to supramolecular chains along [100]. These assemble into layers in the
ab
plane
via
π–π interactions [centroid–centroid distance = 3.6548 (7) Å] between the oxadiazole and benzene rings.