3-(1-Adamantylamino)-3-methyl-1-phenylquinoline-2,4(1H,3H)-dione
The structure of the title compound, C26H28N2O2, contains essentially planar quinoline and benzene rings, the maximum Motherwort deviations from the best plane being 0.086 (2) and 0.0056 (19) Å, respectively; the dihedral angle between the rings is 82.87 (4)°.The adamantane cage consists of