Synthesis of Nucleoside Tetraphosphates and Dinucleoside Pentaphosphates via Activation of Cyclic Trimetaphosphate
摘要:
A procedure for the synthesis of dinucleoside 5'-pentaphosphates (Np5N) and nucleoside 5'-tetraphosphates (Np-4) is described. The procedure relies on the activation of cyclic trimetaphosphate followed by a reaction with a nucleoside 5'-monophosphate (NMP) to give intermediates of type 3. Reaction of 3 with water or an NMP gives the desired products in yields ranging from 77 to 86%.
Iterative Synthesis of Nucleoside Oligophosphates with Phosphoramidites
作者:Gregor S. Cremosnik、Alexandre Hofer、Henning J. Jessen
DOI:10.1002/anie.201306265
日期:2014.1.3
P‐Amidites can be used in iterative couplings to selectively give mixed PIII–PV anhydrides. These intermediates can be oxidized followed by a rapid removal of the two terminal fluorenylmethyl groups. An iterative synthesis (coupling, oxidation, deprotection) of nucleoside oligophosphates can be carried out in solution and on a solid support. The coupling rates and yields are high, the procedures convenient
P-酰胺可用于迭代偶联,以选择性地产生混合的P III -P V酸酐。这些中间体可以被氧化,然后快速除去两个末端芴基甲基。核苷低聚磷酸的迭代合成(偶联,氧化,脱保护)可以在溶液中和在固体载体上进行。偶联率和收率高,操作简便(非干燥试剂和溶剂,环境条件,未保护的核苷酸),并且纯化非常简单。该方法适用于所有规范的核苷,并有望大大简化通常烦人的P-酸酐键构建过程。
A Modular Synthesis of Modified Phosphoanhydrides
作者:Alexandre Hofer、Gregor S. Cremosnik、André C. Müller、Roberto Giambruno、Claudia Trefzer、Giulio Superti-Furga、Keiryn L. Bennett、Henning J. Jessen
DOI:10.1002/chem.201500838
日期:2015.7.6
Phosphoanhydrides (P‐anhydrides) are ubiquitously occurring modifications in nature. Nucleotides and their conjugates, for example, are among the most important building blocks and signaling molecules in cell biology. To study and manipulate their biological functions, a diverse range of analogues have been developed. Phosphate‐modified analogues have been successfully applied to study proteins that
作者:Alexandre Hofer、Elia Marques、Nicole Kieliger、Sarah-Kirsten N. Gatter、Sara Jordi、Elena Ferrari、Manuel Hofmann、Teresa B. Fitzpatrick、Michael O. Hottiger、Henning J. Jessen
DOI:10.1021/acs.orglett.6b01466
日期:2016.7.1
A methodology for the synthesis of oligophosphate conjugates using phosphordiamidites is described. This strategy facilitates the straightforward preparation of C2-symmetric dinucleoside tri-, penta-, and heptaphosphates. Moreover, unsymmetric compounds such as thiamine adenosine triphosphate and thiamine cytidine triphosphate can be prepared. The material is used to study the inhibitory activity of