RNA oligonucleotides having triazole linkages between uridine and adenosine nucleosides have been prepared and studied using spectroscopic techniques. UV melting and CD showed that triazole strongly destabilized RNA duplex (7-14 degrees C per modification). NMR data suggested that, despite relative flexibility around the modified linkage, all base pairs were formed. (C) 2011 Elsevier Ltd. All rights reserved.
RNA oligonucleotides having triazole linkages between uridine and adenosine nucleosides have been prepared and studied using spectroscopic techniques. UV melting and CD showed that triazole strongly destabilized RNA duplex (7-14 degrees C per modification). NMR data suggested that, despite relative flexibility around the modified linkage, all base pairs were formed. (C) 2011 Elsevier Ltd. All rights reserved.