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© Research
Publication : Synlett

Facilitated Synthetic Access to Boronic Acid-Modified Nucleoside Triphosphates and Compatibility with Enzymatic DNA Synthesis

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Synlett - 15 Mar 2024

Germain Niogret, Pascal Röthlisberger, Fabienne Levi-Acobas, Frédéric Bonhomme, Gilles Gasser, Marcel Hollenstein∗

Link to DOI – 10.1055/a-2212-7704

Synlett 2024, 35, 677-683

Decorating nucleic acids with boronic acids can extend the usefulness of oligonucleotide-based tools to the development of medical imaging agents, the promotion of binding of aptamers to markedly more challenging targets, or the detection of (poly)saccharides. However, due to the hygroscopic nature and high intrinsic reactivity of boronic acids, protocols for their introduction into nucleic acids are scarce. Here, we have explored various synthetic routes for the crafting of nucleoside triphosphates equipped with phenylboronic acids. Strain-promoted azide–alkyne cycloaddition appears to be the method of choice for this purpose and it enabled us to prepare a modified nucleotide. Enzymatic DNA synthesis permitted the introduction of up to thirteen boronic acid residues in oligonucleotides, which bodes well for its extension to SELEX and related methods of in vitro selection of functional nucleic acids.