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Inne
NMR conformational analysis of p-tolyl furanopyrimidine 2'-deoxyribonucleoside and crystal structure of its 3', 5'-di-O-acetyl derivative.
Autorzy
Rok wydania
2005
Czasopismo
Bioorganic and Medicinal Chemistry
Numer woluminu
13
Strony
1231-1238
DOI
10.1016/j.bmc.2004.11.013
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The conformation of a representative molecule of a new, potent class of antiviral-active modified nucleosides is determined. A bicyclic nucleoside, 3-(2′-deoxy-β-d-ribofuranosyl)-6-(4-methylphenyl)-2,3-dihydrofuro[2,3-d]pyrimidin-2-one, shows C2′-endo and C3′-endo ribose conformations in solution (63:37, 37 °C; DMSO-d6), as determined by 1H NMR studies. The crystal structure of a 3′,5′-di-O-acetyl-protected derivative (monoclinic, P21, a/b/c = 6.666(1)/12.225(1)/24.676(2) Å, β = 90.24(1)°, Z = 4) shows exclusively C2′-endo deoxyribose puckering. The base is found in the anti position both in solution and in crystalline form.
Adres publiczny
https://doi.org/10.1016/j.bmc.2004.11.013
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