Title
Structure of 1-(2-deoxy-2-fluoro-<tex>$\alpha$</tex>-D-arabinopyranosyl)-5-iodouracil Structure of 1-(2-deoxy-2-fluoro-<tex>$\alpha$</tex>-D-arabinopyranosyl)-5-iodouracil
Author
Faculty/Department
Faculty of Pharmaceutical, Biomedical and Veterinary Sciences. Pharmacy
Publication type
article
Publication
Copenhagen ,
Subject
Chemistry
Source (journal)
Acta crystallographica: section C: crystal structure communications. - Copenhagen
Volume/pages
47(1991) :10 , p. 2245-2247
ISSN
0108-2701
ISI
A1991GN42100087
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
1-(2-Deoxy-2-fluoro-alpha-D-arabinopyranosyl)-5-iodouracil, C9H10FIN2O5, M(r) = 372.09, triclinic, Pl, a = 5.098 (2), b = 6.470 (2), c = 9.293 (6) angstrom, alpha = 81.10 (2), beta = 84.91 (3), gamma = 79.38 (2)-degrees, V = 297.1 (2) angstrom3, Z = 1, D(m) = 2.08, D(x) = 2.080 Mg m-3, lambda(Mo K-alpha) = 0.71069 angstrom, mu = 2.692 mm-1, F(000) = 180, T = 293 K, final R = 0.024 for 1702 unique observed [F greater-than-or-equal-to 4-sigma(F)] reflections. The pyranose ring adopts a chair conformation with phi-2 = - 19 (4)-degrees, theta-2 = 8.9 (5)-degrees and Q(t) = 0.596 (5) angstrom. The N-glycosidic torsion angle chi [O(5')-C(1')-N(1)-C(2)] between this ring and the pyrimidine base is oriented + ac [95.1 (4)-degrees]. The conformational parameters are in accordance with the IUPAC-IUB Joint Commission on Biochemical Nomenclature [Pure Appl. Chem. (1983), 55, 1273-1280] guidelines.
E-info
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