Abstract
In the title quinazoline derivative, C21H17N3O2, the benzimidazole unit makes dihedral angles of 8.29 (5) and 81.79 (5)degrees with the benzene rings of the quinazoline and methoxyphenol units, respectively. The nitrogen-containing six-membered ring adopts a half-chair conformation. In the crystal, the molecules are linked through O-H center dot center dot center dot N hydrogen bonds into screw chains along the b axis; adjacent chains are further connected by N-H center dot center dot center dot O hydrogen bonds, thereby forming a two-dimensional network lying parallel to the bc plane. Weak C-H center dot center dot center dot pi and pi center dot center dot center dot pi interactions with centroid-centroid distances of 3.5258 (8) and 3.7184 (7) angstrom are present and N center dot center dot center dot O [2.6816 (15) and 3.0519 (15) angstrom] short contacts also occur.