Abstract
Triazolyl-functionalized oligonucleotide (ON) analogs have received much attention as potential antitumor and antiviral agents. The most promising of such analogs are those exhibiting high binding affinity toward native DNA/RNA, since they may prove to be efficient antisense or siRNA agents. To date, relatively few ON analogs with triazole internucleotide linkages have been described. In this paper, we report an improved synthesis of a modified dinucleoside phosphoramidite and hybridization data of ON analogs with four-bond triazole internucleotide linkages. We believe these data are essential for comprehensive analysis of the relation between the length of triazole internucleotide linkages and duplex stability.
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