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Versatile Solid Supports for Oligonucleotide Synthesis that Incorporate Urea Bridge
Authors:Mr Andrey Yagodkin  Mr Janne Weisel  Professor Alex Azhayev
Institution:1. Faculty of Health Sciences , University of Eastern Finland , Kuopio , Finland;2. Biocenter Kuopio , University of Eastern Finland , Kuopio , Finland;3. Faculty of Health Sciences , University of Eastern Finland , Kuopio , Finland;4. Metkinen Chemistry , Kuopio , Finland
Abstract:The universal solid support, USIII, representing a new and improved version of commercial USII, as well as 2 ′-deoxynucleoside and 2 ′-deoxy-2 ′-fluoronucleoside bound supports, incorporating a labile phenoxyacetyl fragment, was synthesized by an aminomethyl polystyrene carbamoylation with corresponding azides in the presence of aqueous triethylammonium bicarbonate. All three solid phases incorporate a stable urea tether, thus bridging the polymer and functional linker. These new matrices proved to be potent solid phases for the synthesis of DNA, RNA, or modified oligonucleotides as well as randomized mixed 2 ′-ribo/2 ′-deoxy-2 ′-fluoro-RNA libraries and/or DNA libraries, randomized with trinucleotides (codons).
Keywords:Universal solid support  carbamoylation  urea bridge  randomized oligonucleotide libraries  2′-deoxy-2′-fluoronucleosides  trinucleotide (codons)
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