DNA sequence-specific ligands: XVI. Series of the DBP(n) fluorescent dimeric bisbenzimidazoles with 1,4-piperazine-containing linkers
作者:V. S. Koval、A. A. Ivanov、V. I. Salyanov、A. A. Stomakhin、V. A. Oleinikov、A. L. Zhuze
DOI:10.1134/s106816201702008x
日期:2017.3
bisbenzimidazoles to form complexes with the double-stranded DNA was demonstrated by a complex of physicochemical methods, including spectroscopy in the visual UV-area, circular dichroism (CD), and fluorescence. The DBP(1–4) molecules were localized in the DNA minor groove by the CD method with the use of cholesteric liquid-crystalline dispersions (CLCD) of the double-stranded DNA. The DBP(n) dimeric
制备了一系列新的 DBP(n) 荧光对称二聚体双苯并咪唑,其中双苯并咪唑片段连接到具有 1,4-哌嗪残基在其中心的寡聚接头。DBP(n) 分子通过接头中亚甲基的数量 n(其中 n = 1、2、3、4)来区分。DBP(n) 合成基于单体双苯并咪唑 (MB) 与 1,4-哌嗪二烷基碳酸的缩合。DBP(n) 二聚体双苯并咪唑与双链 DNA 形成复合物的能力通过物理化学方法的复合物得到证明,包括可见紫外线区域的光谱学、圆二色性 (CD) 和荧光。DBP(1-4) 分子通过 CD 方法使用双链 DNA 的胆甾型液晶分散体 (CLCD) 定位在 DNA 小沟中。DBP(n) 二聚体双苯并咪唑很容易溶于水,穿透细胞膜和核膜,并在活细胞中染色 DNA,与以前合成的 DB(n) 系列不同。
USE OF METAL SCAVENGERS FOR REMOVAL OF RUTHENIUM RESIDUES
申请人:APEIRON SYNTHESIS S.A.
公开号:US20160297742A1
公开(公告)日:2016-10-13
The invention concerns use of metal scavengers of the formula (1), wherein the variables are as defined in the description of the invention, for removal of ruthenium residues, compounds, or complexes thereof, from the post-reaction mixtures, from the products of reactions catalysed with ruthenium complexes, as well as from organic compounds contaminated with ruthenium.
Process for producing ruthenium complexes and intermediates thereof and their use in olefin metathesis
申请人:APEIRON SYNTHESIS S.A.
公开号:US11192911B2
公开(公告)日:2021-12-07
The invention provides a new process for producing ruthenium complexes represented by the Formula 1. Invention provides also the use of ruthenium complexes represented by the Formula 1 as precatalysts and/or catalysts in olefin metathesis reactions.
[EN] USE OF IONIZABLE CATIONIC LIPID ANALOG MATERIAL AS PROTEIN DRUG DELIVERY CARRIER<br/>[FR] UTILISATION D'UN MATÉRIAU ANALOGUE DE LIPIDE CATIONIQUE IONISABLE EN TANT QUE SUPPORT D'ADMINISTRATION DE MÉDICAMENT PROTÉIQUE<br/>[ZH] 可电离的阳离子脂质类似物材料在作为蛋白药物递送载体中的应用
DNA specific fluorescent symmetric dimeric bisbenzimidazoles DBP(n): The synthesis, spectral properties, and biological activity
作者:Alexander A. Ivanov、Vasiliy S. Koval、Olga Yu. Susova、Victor I. Salyanov、Vladimir A. Oleinikov、Andrey A. Stomakhin、Natalya A. Shalginskikh、Margarita A. Kvasha、Olga V. Kirsanova、Elizaveta S. Gromova、Alexei L. Zhuze
DOI:10.1016/j.bmcl.2015.04.087
日期:2015.7
A series of new fluorescent symmetric dimeric bisbenzimidazoles DBP(n) bearing bisbenzimidazole fragments joined by oligomethylene linkers with a central 1,4-piperazine residue were synthesized. The complex formation of DBP(n) in the DNA minor groove was demonstrated. The DBP(n) at micromolar concentrations inhibit in vitro eukaryotic DNA topoisomerase I and prokaryotic DNA methyltransferase (MTase) M.SssI. The DBP(n) were soluble well in aqueous solutions and could penetrate cell and nuclear membranes and stain DNA in live cells. The DBP(n) displayed a moderate effect on the reactivation of gene expression. (C) 2015 Elsevier Ltd. All rights reserved.