glucose. The 3′-Me group was introduced in the desired configuration by hydride mediated opening of an exocyclic epoxide. Inversion of the 2′-hydroxyl group was achieved by means of an oxidation/reduction sequence followed by cyclization onto a 5′-leaving group to assemble the [2.2.1] ring system. Biophysical evaluation of 3′-Me-α--LNA modified oligonucleotides showed good duplex thermal stabilizing
报道了3'-Me-α--LNA的合成和
生物物理评价。核苷结构单元亚
磷酰胺的合成是从
双丙酮葡萄糖开始完成的。通过
氢化物介导的环外
环氧化物的开环,将 3'-Me 基团引入所需的构型。2'-羟基的反转是通过氧化/还原顺序实现的,然后环化到 5'-离去基团上以组装 [2.2.1] 环系统。3'-Me-α--LNA 修饰寡核苷酸的
生物物理评价显示出与 α--LNA 相似的良好双链体热稳定性能。错配辨别实验表明,与相关
核酸类似物相比,3'-Me-α--LNA 对 GU 摆动碱基对的辨别特性略有增强。