Circular DNA by “Bis-Click” Ligation: Template-Independent Intramolecular Circularization of Oligonucleotides with Terminal Alkynyl Groups Utilizing Bifunctional Azides
作者:Haozhe Yang、Frank Seela
DOI:10.1002/chem.201503615
日期:2016.1.22
9‐ to 36‐mer oligonucleotides with 1,4‐bis(azidomethyl)benzene afforded circularDNA in a simple and selective way; azido modification of the oligonucleotide was not necessary. Short ethynyl side chains were compatible with the circularization of longer oligonucleotides, whereas octadiynyl residues were used for short 9‐mers. Compared with linear duplexes, circular bis‐click constructs exhibit a significantly