CLO[3.2.1]OCT-5'-YL)OXYMETHYL]-N-4-BENZOYLCYTOSINE

Citation
C. Epple et al., CLO[3.2.1]OCT-5'-YL)OXYMETHYL]-N-4-BENZOYLCYTOSINE, Acta crystallographica. Section C, Crystal structure communications, 54, 1998, pp. 1141-1143
Citations number
9
Categorie Soggetti
Crystallography
ISSN journal
01082701
Volume
54
Year of publication
1998
Part
8
Pages
1141 - 1143
Database
ISI
SICI code
0108-2701(1998)54:<1141:C>2.0.ZU;2-S
Abstract
The structure of the title compound, C21H23N3O7, has been determined a t 193 K, The equivalent DNA-backbone torsion angles delta (O6'-C6'-C5' -C8') and gamma (C6'-C5'-C8'-O8') are 157.3(4) and 67.5(5)degrees, res pectively. An intramolecular hydrogen bond involving the hydroxy O8' a nd carbonyl O2 atoms helps fix the molecule in an extended arrangement with the torsion angle between the bicycle and pyrimidinyl moieties ( C5'-O1-C1-N1) being 159.9(4)degrees.