Efficient RNA-targeting by the introduction of aromatic stacking in the duplex major groove via 5-(1-phenyl-1,2,3-triazol-4-yl)-2′-deoxyuridines
作者:Nicolai Krog Andersen、Navneet Chandak、Lucie Brulíková、Pawan Kumar、Michael Dalager Jensen、Frank Jensen、Pawan K. Sharma、Poul Nielsen
DOI:10.1016/j.bmc.2010.05.019
日期:2010.7
Three pyrimidine nucleosides with differently substituted phenyltriazoles attached to the 5-position were prepared by Cu(I)-assisted azide-alkyne cycloadditions (CuAAC) and incorporated into oligonucleotides. Efficient pi-pi-stacking between two or more phenyltriazoles in the major groove was found to increase the thermal stability of a DNA: RNA duplex significantly. The best stacking, and most stable duplex, was obtained by a sulfonamide substituted derivative. (C) 2010 Elsevier Ltd. All rights reserved.