title: 2'-Deoxy-5-fluorotubercidin.
abstract: In the title compound, 4-amino-7-(2-deoxy-beta-D-erythro-pentofuranosyl)-5-fluoro-7H-pyrrolo[2,3-d]pyrimidine, C11H13FN4O3, the conformation of the glycosyl bond lies between anti and high anti [chi = -101.1 (3) degrees ]. The furanose moiety adopts the S-type sugar pucker (2T3), with P = 164.7 (3) degrees and tau = 40.1 (2) degrees . The extended structure is a three-dimensional hydrogen-bond network involving a C-H...F, two N-H...O and two O-H...O hydrogen bonds.
authors.affiliation: Laboratorium für Organische und Bioorganische Chemie, Institut für Chemie, Universität Osnabrück, Barbarastrasse 7, 49069 Osnabrück, Germany. frank.seela@uni-osnabrueck.de
authors.forename: Frank
authors.initials: F
authors.lastname: Seela
authors.forename: Kuiying
authors.initials: K
authors.lastname: Xu
authors.forename: Henning
authors.initials: H
authors.lastname: Eickmeier
mesh_terms: D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D006863:Hydrogen-Ion Concentration; D008958:Models, Molecular; D008968:Molecular Conformation