A general approach to the synthesis of 5-S-functionalized pyrimidine nucleosides and their analogues
作者:Dzmitry G. Kananovich、Alli Reino、Kaja Ilmarinen、Marko Rõõmusoks、Mati Karelson、Margus Lopp
DOI:10.1039/c4ob00597j
日期:——
A general and efficient approach was developed for the introduction of S-functionality at the C-5 position of cytosine and uracil nucleosides and their analogues. The key step is a palladium-catalyzed C–S coupling of the corresponding 5-bromo nucleoside derivative and alkyl thiol. The butyl 3-mercaptopropionate coupling products were further converted to the corresponding disulphides, the stable precursors