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.
Process for the preparation of piperazine derivatives