Title: Crystal-structure of a nucleoside analog - 2',3'-dideoxy-3'-fluoro-5-bromocytidine
Authors: Das, Ak ×
Mazumdar, Sk
Bertolasi, V
Van Aerschot, Arthur #
Issue Date: May-1993
Publisher: Plenum publ corp
Series Title: Journal of crystallographic and spectroscopic research vol:23 issue:5 pages:353-357
Abstract: The title compound crystallizes in the orthorhombic space group P2(1)2(1)2(1) with a = 5.084(1), b = 14.322(3), c = 16.065(2) angstrom, Z = 4. The structure was solved by the heavy atom method and refined by full-matrix least-squares calculations to a final R value of 0.033 for 1106 unique observed reflections. The N-glycosidic torsion angle chi has a value of -153.7(4)degrees, in the anti-range. The sugar pucker is 2T3 with P = 175(1)degrees and psi = 30(1)degrees. The C4'-C5' conformation is + sc with gamma = 46.7(7)degrees. The structure is stabilized by N-H...N, N-H...O and O-H...O hydrogen bonds and C-H...O close contacts.
ISSN: 0277-8068
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Medicinal Chemistry (Rega Institute)
× corresponding author
# (joint) last author

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