activity. In this study, an efficient solid-phase synthesis of phosphate/boranophosphate (PO/PB) chimeric DNA was achieved by the combination of the H-phosphonate and H-boranophosphonate methods. The physiological and biological properties of the synthesized PO/PB chimeric DNAs were also evaluated. The strategy employed herein can facilitate the design and synthesis of PO/PB chimeric DNAs containing site-specific
硼酸磷酸(PB)DNA具有诱人的特征,例如高
核酸酶抗性和低毒性,因此是有前途的反义寡核苷酸候选物。但是,对反义DNA进行完整的
硼磷酸磷酸酯主链修饰会导致互补RNA形成的双链减少,反义活性降低。在这项研究中,通过H-
膦酸酯和H-
硼烷膦酸酯方法的组合,实现了
磷酸/
硼磷酸(PO / PB)嵌合DNA的高效固相合成。还评估了合成的PO / PB嵌合DNA的生理和
生物学特性。本文采用的策略可以促进含有位点特异性
硼磷酸修饰的PO / PB嵌合DNA的设计和合成。