A Reinvestigation of the Synthesis of 4-Thio-Pentofuranosides for Further Nucleosidic Synthesis

Abstract
We demonstrate that the procedure of Huang and Hui(4), applied to the D-ribose and involving Ph3P/I2/Imidazole reagent system do not lead to the desired 4-thio-D-ribofuranoside derivative but gives its diastereoisomer 4-thio-L-lyxofuranoside derivative 4