A divergent synthesis of d - and l -carbocyclic 4′-fluoro-2′,3′-dideoxynucleosides as potential antiviral agents
摘要:
D- and L-Carbocyclic 4'-fluoro-2',3'-dideoxynucleosides have been synthesized from 2, which can be conveniently prepared from 1.2:5.6-di-O-isopropylidene-D-mannitol 1 in eight steps. Ruthenium-catalyzed ring-closing metathesis has been employed in the synthesis of D-nucleosides, whereas the L-series have been obtained through an intramolecular nucleophilic substitution reaction. The Mitsunobu condensation was used as a general tool for the synthesis of both purine and pyrimidine nucleosides. (C) 2001 Elsevier Science Ltd. All rights reserved.
A divergent synthesis of d - and l -carbocyclic 4′-fluoro-2′,3′-dideoxynucleosides as potential antiviral agents
摘要:
D- and L-Carbocyclic 4'-fluoro-2',3'-dideoxynucleosides have been synthesized from 2, which can be conveniently prepared from 1.2:5.6-di-O-isopropylidene-D-mannitol 1 in eight steps. Ruthenium-catalyzed ring-closing metathesis has been employed in the synthesis of D-nucleosides, whereas the L-series have been obtained through an intramolecular nucleophilic substitution reaction. The Mitsunobu condensation was used as a general tool for the synthesis of both purine and pyrimidine nucleosides. (C) 2001 Elsevier Science Ltd. All rights reserved.
Synthesis and Antiretroviral Activity of Novel 4′-Fluoro-5′-Deoxyphosphonic Acid Carbocyclic Nucleoside Analogs
作者:Eunae Kim、Seyeon Kim、Joon Hee Hong
DOI:10.1080/15257770.2014.920506
日期:2014.10.3
phosphonic acid analogs with the 4′-electropositive moiety, fluorine were designed, and synthesized from glyceraldehyde. The cyclopentenol intermediate, 9, was successfully synthesized by the ring-closing metathesis of divinyl 8. The condensation reaction of cyclopentanol 15 with purine bases under Mitsunobu conditions successfully afforded the desired phosphonate analogs. The synthesized nucleoside phosphonic