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Updated: May 6, 2026

Enhancing Efficiency and Radiolabeling Yields of Carbon-11 Radioligands for Clinical Research Using the Loop Method
Published on: December 20, 2024
Pd(0)-Catalyzed methyl transfer on nucleosides and oligonucleotides, envisaged as a PET tracer
Damien James1, Jean-Marc Escudier, Magali Szlosek-Pinaud
1Institut des Sciences Moléculaires, Université de Bordeaux, UMR5255, 351 Cours de la Libération, Talence 33405, France. d.james@u-bordeaux1.fr.
Abstract:
The methyl transfer reaction from activated monomethyltin, via a modified Stille coupling reaction, was studied under "ligandless" conditions on fully deprotected 5'-modified nucleosides and one dinucleotide. The reaction was optimized to proceed in a few minutes and quantitative yield, even under dilute conditions, thus affording a rapid and efficient new method for oligonucleotide labelling with carbon-11.
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