stereoregular dimers containing a preformed octylphosphonate linkage. The novel oligodeoxynucleotides were characterized by electrospray ionization mass spectrometry and the influence of chirality of the modified linkages on the duplex stability was studied. Furthermore, end-capped oligodeoxynucleotides having two octylphosphonate linkages at either end which were directed against HSV-1 mRNA have been synthesized
含两个辛基膦酸酯键[3'-OP(= O)(n -C 8 H 17)-O-5']描述了具有立体规则性或立体随机性的手性。随机辛基膦酸酯键的引入是使用单体核苷辛基膦酰胺作为合成子进行的,而立体有规键的引入可以通过使用含有预先形成的辛基膦酸酯键的立体有规二聚体来完成。通过电喷雾电离质谱对新型寡聚脱氧核苷酸进行了表征,并研究了修饰键的手性对双链体稳定性的影响。此外,已经合成了在两端具有针对HSV-1 mRNA的具有两个辛基膦酸酯键的封端的寡脱氧核苷酸,作为反义药物用于研究。