Abstract
In the title pyrimidine derivative, C24H28N2O3, the uracil unit is essentially planar with an r.m.s. deviation of 0.0054 (1) angstrom for the eight non-H atoms. The pyrimidine ring is tilted by a dihedral angle of 77.08 (7)degrees with respect to the aromatic ring of the 3,5-dimethylbenzyl substituent, whereas it is nearly parallel to the benzene ring of the phenethoxymethyl unit, with a dihedral angle of 8.17 (8)degrees. An intramolecular C-H center dot center dot center dot O hydrogen bond generates an S(6) ring motif. In the crystal, molecules are linked by a pair of amide-uracil N-H center dot center dot center dot O hydrogen bonds into an inversion R-2(2) (8) dimer. These dimers are stacked along the b axis through pi-pi interactions with a centroid-centroid distance of 3.9517 (8) angstrom. Weak C-H center dot center dot center dot pi interactions are also present.