Novel purine conjugates with N-heterocycles: synthesis and anti-influenza activity
作者:Victor P. Krasnov、Vladimir V. Zarubaev、Dmitry А. Gruzdev、Olga А. Vozdvizhenskaya、Sergey А. Vakarov、Vera V. Musiyak、Evgeny N. Chulakov、Alexandrina S. Volobueva、Ekaterina O. Sinegubova、Marina А. Ezhikova、Mikhail I. Kodess、Galina L. Levit、Valery N. Charushin
DOI:10.1007/s10593-021-02930-6
日期:2021.4
A number of novel amides were synthesized by coupling of 6-[(9H-purin-6-yl)amino]hexanoic acid to heterocyclic amines. The antiviral activity of the obtained compounds, as well as of purine conjugates in which 7,8-difluoro-3-methyl-3,4-dihydro-2H-1,4-benzoxazine is linked to position 6 of purine through a fragment of ω-amino acids with varying lengths of polymethylene chains against influenza A and
通过将6-[[(9 H-嘌呤-6-基)氨基]己酸与杂环胺偶联,可以合成许多新型酰胺。所得化合物以及嘌呤结合物的抗病毒活性,其中7,8-二氟-3-甲基-3,4-二氢-2 H -1,4-苯并恶嗪通过一个片段与嘌呤的6位连接体外研究了针对甲型和乙型流感病毒的具有不同聚亚甲基链长度的ω-氨基酸的合成。嘌呤衍生物已显示出对A型流感(H1N1)病毒具有中等活性。与7,8-二氟-3-甲基-3,4-二氢-2 H -1,4-苯并恶嗪的缀合物的抗流感活性和细胞毒性取决于接头片段的长度。
Rapid identification of the pharmacophore in a peptoid inhibitor of the proteasome regulatory particle
作者:Hyun-Suk Lim、Chase T. Archer、Young-Chan Kim、Troy Hutchens、Thomas Kodadek
DOI:10.1039/b717861a
日期:——
Here we report a simple and effective method to identify the minimal pharmacophore in the first peptoid inhibitor of the 19S proteasome regulatory particle, which has led to the development of a derivative that exhibits improved cellular activity, presumably due to a reduction in mass of about two-fold and the elimination of positively charged lysine-like residues.
Synthesis of New Purine Derivatives Containing α- and ω-Amino Acid Fragments
作者:V. V. Musiyak、I. A. Nizova、T. V. Matveeva、G. L. Levit、V. P. Krasnov、V. N. Charushin
DOI:10.1134/s1070428019060046
日期:2019.6
New conjugates of purine and 2-aminopurine with several α- and ω-amino acids have been synthesized following two approaches based on the condensation and nucleophilic substitution reactions. The enantiomeric purity of the isolated compounds has been confirmed by reversed-phase HPLC using a chiral stationary phase to demonstrate the absence of racemization during the synthesis. The conjugates are inactive
This report describes a novel carboxyl pendant containing adenylated polymeric template, its metalation with Zn (II), and manifestation of catalytic activity for the hydrolysis of model phosphodiester, bis(p-nitrophenyl) phosphate (bNPP), and plasmid cleavage. Observation of a bell-shaped pH-K-obs profile suggested influence of pH variation over hydrolysis rate. This metalated polymer also afforded facile relaxation of pBR322 supercoiled DNA, with an interesting reusability feature intricately associated with heterogeneous catalysis. (c) 2006 Elsevier Ltd. All rights reserved.
Multifunctional dinucleotide analogs for the generation of complex RNA conjugates
作者:Felix Hausch、Andres Jäschke
DOI:10.1016/s0040-4020(00)01114-5
日期:2001.2
Oligonucleotide conjugates are needed for in vitro selection schemes aiming at reactions between small, organic reactants. A general strategy is provided for the generation of the required RNA reactant conjugates based on multifunctional dinucleotide analogs. These modified dinucleotides allow for enzymatic ligation to native or enzymatically transcribed RNAs. They further contain a flexible polyethylene glycol spacer for correct spatial positioning and a photolabile cleavage site for selective release. The dinucleotides can be derivatized with the desired organic compounds by activated ester chemistry as was demonstrated by coupling to several nucleobases and nucleotides. (C) 2001 Elsevier Science Ltd. All rights reserved.