Synthesis and NMR Spectra of Some New Carbohydrate Modified Uridine Phosphoramidites
作者:Pawel J. Serafinowski、Colin L. Barnes
DOI:10.1080/07328319708006222
日期:1997.7
The one step reaction of 2'- and 3'-keto derivatives of uridine with bromodifluoromethyl[tris(dimethylamino)]phosphonium bromide and zinc gives the corresponding 2'- and 3'-difluoromethylene nucleosides in good yield. Desilylation and phosphitylation of the resultant 2'- or 3'-hydroxyls provides the target 2'- and 3'-phosphoramidites 7 and 8 for use in oligonucleotide synthesis(1).