Cytostatic and antiviral 6-arylpurine ribonucleosides. Part 7: synthesis and evaluation of 6-substituted purine l-ribonucleosides

. 2006 Oct 15 ; 16 (20) : 5290-3. [epub] 20060814

Jazyk angličtina Země Anglie, Velká Británie Médium print-electronic

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/pmid16905315
Odkazy

PubMed 16905315
DOI 10.1016/j.bmcl.2006.07.092
PII: S0960-894X(06)00885-7
Knihovny.cz E-zdroje

A series of purine l-ribonucleosides 2a-2i bearing diverse C-substituents (alkyl, aryl, hetaryl or hydroxymethyl) in the position 6 were prepared by Pd-catalyzed cross-coupling reactions of 6-chloro-9-(2,3,5-tri-O-acetyl-beta-l-ribofuranosyl)purine with the corresponding organometallics followed by deprotection. Unlike their d-ribonucleoside enantiomers that possess strong cytostatic and anti-HCV activity, the l-ribonucleosides were inactive except for 6-benzylpurine nucleoside 2h showing moderate anti-HCV effect in replicon assay. A triphosphate of 2h did not inhibit HCV RNA polymerase.

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