title: Ethyl 1-[3-(2-oxopyrrolidin-1-yl)prop-yl]-2-phenyl-1H-benzimidazole-5-carboxyl-ate.
abstract: In the title compound, C(23)H(25)N(3)O(3), the benzimidazole ring system is essentially planar [maximum deviation = 0.0240 (18) Å]. The mean plane through this ring system forms a dihedral angle of 42.23 (7)° with the benzene ring. The pyrrolidine ring is in an envelope conformation with the flap atom disordered over two sites with occupancies of 0.813 (11) and 0.187 (11). In the crystal, weak C-H⋯O hydrogen bonds form R(2) (2)(10) ring motifs, which are connected by further C-H⋯O inter-actions, forming ribbons along the b axis. The crystal structure is further stabilized by weak π-π inter-actions involving the imidazole and benzene rings of the benzimidazole ring system [centroid-centroid distances = 3.6788 (11) and 3.6316 (10) Å] and weak C-H⋯π 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