Abstract
3′-Amino-3′-deoxy-5′-O-(4,4′-dimethoxytrityl)-3′-N,5′(R)-C-ethylenethymidine (6) was synthesized starting from 3′-azido-3′-deoxythymidine. Condensation of 6 with 5′-O-(H-phosphonyl)thymidine and 5′-O-(p-nitrophenoxycarbonyl)thymidine derivatives gave dinucleotide and dinucleoside derivatives, respectively, which were incorporated into oligodeoxynucleotides (ODNs). Tm data of the modified ODNs are also presented.
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