Bridged nucleic acid conjugates at 6′-thiol: synthesis, hybridization properties and nuclease resistances
作者:Kazuto Mori、Tetsuya Kodama、Takeshi Baba、Satoshi Obika
DOI:10.1039/c1ob05469d
日期:——
The bridged nucleic acid (BNA) containing a thiol at the 6′-position in the bridged structure was synthesized from the disulfide-type BNA and conjugated with various functional molecules via the thioether or the disulfide linkage post-synthetically and efficiently in solution phase. The disulfide-linked conjugate was cleaved under reductive conditions derived from glutathione and an oligonucleotide
桥接核酸BNA)由二硫键合成了在桥结构中6'-位含有硫醇的化合物 BNA并通过硫醚或二硫键与各种功能分子在溶液相中后合成且有效地缀合。二硫键连接的共轭物在衍生自以下条件的还原条件下裂解谷胱甘肽并且带有游离硫醇的寡核苷酸被顺利释放。缀合的功能分子对DNA补体的双链体稳定性有很大影响。相反,这些分子几乎不会影响RNA补体的稳定性。而且,在6'-位置具有官能团的寡核苷酸对3'-核酸外切酶的抵抗力与之相比更高或更高。硫代磷酸酯 寡核苷酸寡聚核苷酸)。