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Acta Cryst. (2013). E69, o1013-o1014  [ doi:10.1107/S1600536813014177 ]

Ethyl 2-[5-(4-fluorophenyl)pyridin-3-yl]-1-[3-(2-oxopyrrolidin-1-yl)propyl]-1H-benzimidazole-5-carboxylate

K. Y. Yeong, M. A. Ali, T. S. Choon, M. M. Rosli and I. A. Razak

Abstract: In the title compound, C28H27FN4O3·H2O, the benzimidazole ring system is essentially planar with a maximum deviation of 0.028 (1) Å. It makes dihedral angles of 47.59 (5) and 60.31 (5)°, respectively, with the pyridine and benzene rings, which make a dihedral angle of 22.58 (6)° with each other. The pyrrolidine ring shows an envelope conformation with one of the methylene C atoms as the flap. In the crystal, the components are connected into a tape along the b-axis direction through O-H...O and O-H...N hydrogen bonds and a [pi]-[pi] interaction between the pyridine and benzene rings [centroid-centroid distance of 3.685 (8) Å]. The tapes are further linked into layers parallel to the ab plane by C-H...O and C-H...F interactions.

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