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Crystal structures of ethyl 3-azido-2,3-dideoxy-D-arabino-hexopyranoside anomers. 2007
Aleksandra Dabrowska, and
Dagmara Jacewicz, and
Agnieszka Chylewska, and
Andrzej Wojtczak, and
Lech Chmurzyński
Department of Chemistry, University of Gdańsk, 18/19 Sobieski St, PL-80 952 Gdańsk, Poland. alex@chemik.chem.univ.gda.pl
The structures of the title alpha (1) and beta (2) anomers of ethyl 3-azido-2,3-dideoxy-d-arabino-exopyranoside (C(8)H(15)N(3)O(4)) are reported. The single-crystal structures of C(8)H(15)N(3)O(4) were determined by X-ray crystallography at 293K. It has been found that both title compounds crystallize in the orthorhombic space group. In both cases, the unit cell contains four asymmetric molecules. From intensity measurements, it has been shown that each of these molecules adopts a (4)C(1) chair conformation. The packing arrangement in the unit cell displays a stratified structure. Moreover, medium strength O-H...O hydrogen bonds in both crystal lattices can be observed.
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