P. Clivio et al., SYNTHESIS OF DEOXYDINUCLEOSIDE PHOSPHATES CONTAINING 6-THIO-SUBSTITUTED PURINE NUCLEOBASES, Journal of the Chemical Society. Perkin transactions. I, (21), 1993, pp. 2585-2590
An efficient preparative method to obtain. by the hydrogen phosphonate
approach in solution, dinucleoside phosphates containing either 2'-de
oxy-6-thioinosine or 2'-deoxy-6-thioguanosine at their 3' end, as in c
ompounds 6 and 7, is described. For this purpose appropriate 5'-OH-fre
e sulfur-modified deoxynucleoside intermediates required for this synt
hesis have been defined, as exemplified with the case of 2'-deoxy-6-th
ioguanosine.