Parallel Stranded DNA Stabilized with Internal Sugar Cross-Links: Synthesis and Click Ligation of Oligonucleotides Containing 2′-Propargylated Isoguanosine
作者:Suresh S. Pujari、Frank Seela
DOI:10.1021/jo4012706
日期:2013.9.6
solid-phase synthesis. A series of oligo-2′-deoxyribonucleotides with parallel (ps) and antiparallel (aps) strand orientation were constructed containing isoguanine-cytosine, isoguanine-isocytosine, and adenine-thymine base pairs. Complementary oligonucleotides with propargylated sugar residues were ligated in a stepwise manner with a chelating bis-azide under copper catalysis. Cross-links were introduced within