The anomers of 8-aza-7-deaza-2 `-deoxy-adenosine

Autor(en): Seela, F
Zulauf, M
Reuter, H 
Kastner, G
Stichwörter: Chemistry; Chemistry, Multidisciplinary; Crystallography; DNA; OLIGONUCLEOTIDES
Erscheinungsdatum: 1999
Herausgeber: MUNKSGAARD INT PUBL LTD
Journal: ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS
Volumen: 55
Ausgabe: 11
Startseite: 1947
Seitenende: 1950
Zusammenfassung: 
The structures of 4-amino-1-(2-deoxy-beta-D-erythro-pentofuranosyl)-1H-pyrazolo[3,4-d]py rimidine, (I), and 4-amino-1-(2-deoxy-alpha-D-erythro-pentofuranosyl)-1H-pyrazolo[3,4-d]p yrimidine, (II), both C10H13N5O3, have been determined. The sugar puckering of both compounds is C-2'-endo-C-3'exo (T-2'(3')) (S-type sugar). The N-glycosidic torsion angle chi(1) is in the anti range [-106.3 (2)degrees for (I) and 111.5 (3)degrees for (II)] and the crystal structure is stabilized by hydrogen bonds.
ISSN: 01082701
DOI: 10.1107/S010827019901015X

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