title: Ethyl 2-(4-hy-droxy-3-meth-oxy-phen-yl)-1-[3-(2-oxopyrrolidin-1-yl)prop-yl]-1H-benzimidazole-5-carboxyl-ate monohydrate.
abstract: In the title compound, C(24)H(27)N(3)O(5)·H(2)O, the essentially planar benzimidazole ring system [maximum deviation = 0.020 (1) Å] forms dihedral angles of 54.10 (11) and 67.79 (6)°, respectively, with the mean plane of pyrrolidin-2-one ring and the benzene ring. The pyrrolidin-2-one ring adopts an envelope conformation with one of the methylene C atoms at the flap. An intra-molecular C-H⋯π inter-action is observed. In the crystal, O-H⋯O and O-H⋯N hydrogen bonds link the two components into a double-tape structure along the a axis. The crystal packing is further stabilized by weak π-π stacking [centroid-centroid distance = 3.6632 (9) Å] and C-H⋯O inter-actions.
authors.forename: Yeong Keng
authors.initials: YK
authors.lastname: Yoon
authors.forename: Mohamed Ashraf
authors.initials: MA
authors.lastname: Ali
authors.forename: Tan Soo
authors.initials: TS
authors.lastname: Choon
authors.forename: Safra Izuani Jama
authors.initials: SI
authors.lastname: Asik
authors.forename: Ibrahim Abdul
authors.initials: IA
authors.lastname: Razak