Synthesis of 4'-ethynyl-purine nucleosides possessing anti-HIV activity
نویسندگان
چکیده
منابع مشابه
Synthesis and anti-virus activity of some nucleosides analogues.
New 3'-, 5'-, 5-bromo-2'-deoxyuridine (3a-g) and 3'-, 5'-thymidine (4a-i) analogues with amino acid and peptide residues were synthesized and evaluated for antiviral activity. The influence of long peptide chains, essential amino acids and the effect of this structural modification on the antiviral activity has been also reported. Three 5-bromo-2'-deoxyuridine derivatives containing glycyl-, gl...
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BACKGROUND Purine nucleoside analogs (PNAs) constitute an important group of cytotoxic drugs for the treatment of neoplastic and autoimmune diseases. In the present study, classification models have been developed for the prediction of the anti-HIV activity of purine nucleoside analogs. RESULTS The topochemical version of superaugmented pendentic index-4 has been proposed and successfully uti...
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Two alternative approaches to the synthesis of novel 6-(fluoromethyl)purine bases and nucleosides are described either by direct deoxyfluorination or by multistep functional group transformations starting from 6-(hydroxymethyl)purines. 6-(fluoromethyl)purine ribonucleoside displayed significant cytostatic effects.
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To test the hypothesis that carcinostatic purine and pyrimidine analogues exert their effects at the nucleotide level, we have undertaken the preparation and study of nucleotides, including coenzymes, which contain analogues in place of the natural bases. An earlier communication from this laboratory (1) described the enzymatic synthesis and isolation of 5’-nucleotides of a number of purine ana...
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The new guanidinylation reagent N,N'-diBoc-N''-triflylguanidine was used to efficiently convert multiamine-containing glycosides including kanamycin A and B, tobramycin, paromomycin, and neomycin B to the corresponding fully guanidinylated analogues (guanidinoglycosides). This transformation occurs in the presence of H(2)O under mild conditions. Guanidinotobramycin and guanidinoneomycin B were ...
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ژورنال
عنوان ژورنال: Nucleic Acids Symposium Series
سال: 2000
ISSN: 0261-3166,1746-8272
DOI: 10.1093/nass/44.1.105