Synthetic Approaches to Nuclease-Resistant,Nonnatural Dinucleotides of Anti-Hiv Integrase Interest |
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Authors: | Guochen Chi Vasu Nair |
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Affiliation: | Department of Pharmaceutical and Biomedical Sciences and The Center for Drug Discovery , University of Georgia , Athens, Georgia, USA |
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Abstract: | New, nonnatural dinucleotide 5′-monophosphates with a surrogate isonucleoside component of L-related stereochemistry, have been synthesized. Structures of the target compounds were confirmed by multinuclear NMR spectra (1H, 13C, 31P, COSY), UV hypochromicity, FAB HRMS data and X-ray crystallography. These compounds are totally resistant to cleavage by 3′- and 5′-exonucleases. Dinucleotides of this study with a terminal L-isonucleoside component showed remarkable selectivity for inhibition of the strand transfer step of HIV-1 integrase. To the best of our knowledge, these compounds represent only the second example of this type of selectivity of inhibition of the strand transfer step. |
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Keywords: | Synthesis Phosphorylation Exonuclease Inhibitors HIV integrase |
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