X. Chen et al., STUDIES ON REACTION OF RIBONUCLEOSIDES WITH OXYPHOSPHORANE, Phosphorus, sulfur and silicon and the related elements, 118, 1996, pp. 257-261
Ester exchange reaction of ribonucleosides (2) with oxyphosphorane (1)
afforded spirooxyphosphoranes (3). After hydrolysis followed by acety
lation, the labile spirooxyphosphoranes such as 3a were converted into
stable nucleotide derivatives (4). The possible mechanism for the con
version was also discussed.