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Updated: Jan 29, 2026

A Hydrogen-Deuterium Exchange Mass Spectrometry HDX-MS Platform for Investigating Peptide Biosynthetic Enzymes
Published on: May 4, 2020
Efficient Access to Deuterated and Tritiated Nucleobase Pharmaceuticals and Oligonucleotides using Hydrogen-Isotope
Alberto Palazzolo1, Sophie Feuillastre1, Viktor Pfeifer1
1SCBM, CEA, Université Paris Saclay, 91191, Gif-sur-Yvette, France.
Abstract:
A general approach for the efficient hydrogen-isotope exchange of nucleobase derivatives is described. Catalyzed by ruthenium nanoparticles, using mild reaction conditions, and involving either D2 or T2 as isotopic sources, this reaction possesses a wide substrate scope and a high solvent tolerability. This novel method facilitates the access to essential diagnostic tools in drug discovery and development: tritiated pharmaceuticals with high specific activities and deuterated oligonucleotides suitable for use as internal standards during LC-MS quantification.
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