H. Almer et al., CHEMICAL SYNTHESIS OF RNA-FRAGMENT ANALOGS THAT HAVE PHOSPHOROTHIOATELINKAGES OF IDENTICAL CONFIGURATION, Nucleosides & nucleotides, 14(3-5), 1995, pp. 879-881
Oligouridine all-Rp-phosphorothioates were synthesized using the H-pho
sphonate approach followed by silfurisation with S-8 and treatment wit
h nuclease P1. The degree of stereoselection in the couplings is repor
ted for different 2'-O-silyl protecting groups. The influence of the h
eterocyclic base was also investigated.