1,N `-etheno derivative of 7-deaza-2,8-diazaadenosine

Autor(en): Lin, WQ
Seela, F
Eickmeier, H
Reuter, H 
Stichwörter: ADENOSINE; Chemistry; Chemistry, Multidisciplinary; Crystallography; PSEUDOROTATION
Erscheinungsdatum: 2004
Herausgeber: INT UNION CRYSTALLOGRAPHY
Journal: ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY
Volumen: 60
Ausgabe: 8
Startseite: O566-O568
Zusammenfassung: 
In the tricyclic nucleoside 7-(beta-D-ribofuranosyl)-7H-imidazo[1,2-c]pyrazolo[4,3-e][1,2,3]tr iazine, C11H12N6O4, the conformation of the N-glycosyl bond is intermediate between anti and high anti [chi = -103.5 (3)degrees]. The ribofuranose moiety adopts a T-3(2) sugar pucker (S-type sugar) and the conformation at the exocyclic C-C bond is ap (gauche-trans). Molecules of the title compound form a three-dimensional network via three medium-strong intermolecular hydrogen bonds (one O-H...N and two O-H...O bonds).
ISSN: 20532296
DOI: 10.1107/S010827010401409X

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