摘要:
A diastereoselective dinucleoside methylphosphonate synthetic method that features coupling of diastereomerically pure 1,1,1,3,3,3-hexafluoro-2-propyl nucleoside-3'-O-methylphosphonate monomers with 3'-O-protected nucleoside monomers mediated by alkoxymagnesium chloride reagents is described. This synthetic method was found to be diastereospecific in the synthesis of selected 2'-deoxy dinucleoside methyphosphonates and diastereoselective in the synthesis of all sixteen 2'-O-methyl dinucleoside methylphosphonates.