Synthesis and hybridization properties of oligonucleotide analogues with novel acyclic triazole internucleotide linkages.

Herein, we describe synthesis of novel acyclic dinucleotide analogues connected via triazole linkage in CuAAC reaction. Synthesis pathway starting from previously obtained building blocks containing alkyne or azide functional group is described. Further functionalization and application of dinucleotide analogues in DNA phosphoramidite solid-phase synthesis is also explained. Additionally, we have examined the influence of novel modifications on DNA duplex thermodynamic stability.