pyrimidines and trimethylsilyl triflate (Kita-O'Niel-Matsuda's method; modified Pummerer rearrangement). On the other hand, the compounds 2 and 3 have been obtained via N-glycosylation of the corresponding 4'-thiofuranoses 7 and 8 with trimethylsilylated pyrimidines and SnCl 4 , respectively, while the compounds 7 and 8 have been prepared from compounds 5 and 6 by an electrochemical 2-acetoxylation, respectively