Solid phase synthesis of phosphonate-modified oligoribonucleotides using 2′-O-benzoyloxymethoxymethyl protected monomers is presented in both 3′→5′ and 5′→3′ directions. Hybridisation properties and enzymatic stability of oligoribonucleotides modified by regioisomeric 3′- and 5′-phosphonate linkages are evaluated. The introduction of the 5′-phosphonate units resulted in moderate destabilisation of
2'3' CYCLIC DINUCLEOTIDES WITH PHOSPHONATE BOND ACTIVATING THE STING ADAPTOR PROTEIN
申请人:INSTITUTE OF ORGANIC CHEMISTRY AND BIOCHEMISTRY ASCR,V.V.I.
公开号:US20190185510A1
公开(公告)日:2019-06-20
The present disclosure relates to 2′3′ cyclic phosphonate dinucleotides of general formula (J), their pharmaceutically acceptable salts, their pharmaceutical composition and combinations of said substances and other medicaments or pharmaceuticals. The disclosure also relates to the use of said compounds for the treatment or prevention of diseases or conditions modifiable by STING protein modulation, such as cancer or viral, allergic and inflammatory diseases. In addition, these substances can be used as adjuvants in vaccines.
An azidomethyl protective group in the synthesis of oligoribonucleotides by the phosphotriester method
作者:V. A. Efimov、A. V. Aralov、S. V. Fedunin、V. N. Klykov、O. G. Chakhmakhcheva
DOI:10.1134/s1068162009020149
日期:2009.3
A rapid and effective method of an automatic oligoribonucleotidesynthesis alternative to the phosphoroamidite one was developed based on the phosphotriester approach of internucleotide bond formation under intramolecular O-nucleophilic catalysis and the use of an azidomethyl group for protection of a nucleotide 2'-hydroxyl function.
2′‐deoxyribonucleosides, 1‐(2‐deoxy‐β‐D‐threo‐pentofuranosyl)thymine, 5′‐O‐ and 2′‐O‐phosphonomethyl derivatives of 1‐(3‐deoxy‐β‐D‐erythro‐pentofuranosyl)thymine, and 1‐(3‐deoxy‐β‐D‐threo‐pentofuranosyl)thymine has been synthesized as a pool of monomers for the synthesis of modified oligonucleotides. The phosphonate moiety was protected with 4‐methoxy‐1‐oxido‐2‐pyridylmethyl ester group, serving also as an intramolecular
Solution Structure of a DNA Duplex Containing the Potent Anti-Poxvirus Agent Cidofovir
作者:Olivier Julien、James R. Beadle、Wendy C. Magee、Subhrangsu Chatterjee、Karl Y. Hostetler、David H. Evans、Brian D. Sykes
DOI:10.1021/ja109823e
日期:2011.2.23
chemical shift change for G18. This indicates higher proton exchange rates for this region, which were confirmed using NMR-monitored melting experiments. DNA duplex melting experiments monitored by circulardichroism revealed a lower T(m) for the CDV DNA duplex (46 °C) compared to the control (58 °C) in 0.2 M salt. Our results suggest that the CDV drug is well accommodated and stable within the dodecamer
西多福韦 (1(S)-[3-羟基-2-(膦酰基甲氧基)丙基]胞嘧啶,CDV) 是一种有效的正痘病毒 DNA 复制抑制剂。先前的研究表明,当 CDV 掺入不断增长的引物链时,它可以抑制痘苗病毒 DNA 聚合酶的 3'-to-5' 核酸外切酶和 5'-to-3' 链延伸活性。这种药物也可以结合到 DNA 中,以类似于 DNA 损伤的方式对跨损伤 DNA 合成产生重大障碍。CDV 和脱氧胞苷共享一个共同的核碱基,但 CDV 缺乏脱氧核糖。无环膦酸酯带有一个羟基部分,相当于 dCMP 的 3'-羟基,并允许 CDV 掺入双链 DNA。为了研究将 CDV 插入 DNA 的结构后果,我们已经使用 (1)H NMR 解决了在第 7 位包含 CDV 分子的十二聚体 DNA 双链体和对照 DNA 双链体的溶液结构。发现两种 DNA 双链体的整体结构非常相似。我们观察到与 CDV(G6、T8)和同源碱基 G18