化学
寡核苷酸
磷酰胺
烟气脱硫
核酸酶
组合化学
劈理(地质)
一步到位
有机化学
DNA
化学工程
生物化学
酶
岩土工程
断裂(地质)
工程类
作者
Takaki Habuchi,Yoshiyasu Terao,Masayuki Utsugi
标识
DOI:10.1016/j.tetlet.2023.154843
摘要
The phosphorothioate (PS) linkage has been widely utilized in oligonucleotide therapeutics because it dramatically enhances the nuclease resistance of oligonucleotides. Although PS-modified oligonucleotides are easily synthesized using the phosphoramidite method, they are partially desulfurized during the cleavage and deprotection (C&D) step. The separation and purification of these desulfurized oligonucleotides are quite difficult because they have physical properties similar to those of their intact counterparts. Therefore, the suppression of desulfurization is important for oligonucleotide manufacturing. In this study, we developed a robust C&D method that avoids desulfurization by adding reducing inorganic salts such as NaI and Na2S2O3 to the reaction solutions. This new C&D method has potential application for manufacturing high-quality oligonucleotide therapeutics.
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