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 |
Zur Langanzeige
Seitenaufrufe
6
Letzte Woche
2
2
Letzter Monat
0
0
geprüft am 25.04.2024