2‘-<i>O</i>-{2-[<i>N</i>,<i>N</i>-(Dialkyl)aminooxy]ethyl}- Modified Antisense Oligonucleotides
作者:Thazha P. Prakash、Muthiah Manoharan、Andrew M. Kawasaki、Elena A. Lesnik、Stephen R. Owens、Guillermo Vasquez
DOI:10.1021/ol006555g
日期:2000.12.1
[structure] Oligonucleotides with two novel modifications, 2'-O-¿2-[N, N-(dimethyl)aminooxy]ethyl¿ (2'-O-DMAOE) and 2'-O-¿2-[N, N-(diethyl)aminooxy]ethyl¿ (2'-O-DEAOE), have been synthesized. These modifications exhibit high binding affinity to target RNA (and not to DNA) and enhance the nuclease stability of oligonucleotides considerably with t(1/2) > 24 h as a phosphodiester.
[结构]具有两个新颖修饰的寡核苷酸,2'-O-¿2-[N,N-(二甲基)氨基氧基]乙基(2'-O-DMAOE)和2'-O-¿2-[N,N -(二乙基)氨基氧基]乙基(2'-O-DEAOE)已经合成。这些修饰表现出对靶RNA(而不是DNA)的高结合亲和力,并以t(1/2)> 24 h作为磷酸二酯显着增强了寡核苷酸的核酸酶稳定性。