New carbocyclic analogues of netropsin: synthesis and inhibition of topoisomerases.

  • Anna Pućkowska Department of Organic Chemistry, Medical Academy of Bialystok, Poland.;
  • Krzysztof Bielawski
  • Anna Bielawska
  • Andrzej Rózański

Abstract

A series of carbocyclic analogues of netropsin were synthesized and evaluated for their capacity to inhibit human topoisomerases I and II in vitro. The compounds are oligopeptides containing 1,4-di- and 1,2,5-trisubstituted benzene rings and unsubstituted N-terminal NH2 groups. Compounds 4-7 consist of two netropsin-like units linked by aliphatic (tetra- and hexamethylene) chains. In the topoisomerase I and II assay, the relaxation of pBR322 plasmid was inhibited by compounds 4-7 at 100 microM concentration.
Published
2002-03-31
Section
Articles