Botha, F.; Slavíčková, M.; Pohl, R.; Hocek, M. Copper-mediated arylsulfanylations and arylselanylations of pyrimidine or 7-deazapurine nucleosides and nucleotides. Org. Biomol. Chem. 2016, 14 (42), 10018-10022 DOI: 10.1039/C6OB01917J.