2-Ethyl-3-[(R)-2-phenyl-butanamido]-quinazolin-4(3H)-one monohydrate

Acta Crystallogr Sect E Struct Rep Online. 2014 Mar 22;70(Pt 4):o467. doi: 10.1107/S1600536814005996. eCollection 2014 Apr 1.

Abstract

In the title compound, C20H21N3O2·H2O (EQR·H2O), the quinazoline ring system forms dihedral angles of 53.1 (1) and 85.6 (1)° with the phenyl ring and the amide link, respectively. In the crystal, O-H⋯O hydrogen bonds link two EQR and two water mol-ecules into a centrosymmetric R 4 (4)(18) ring motif. N-H⋯O hydrogen bonds further link these hydrogen-bonded fragments into columns extending in [010].