Synthesis, DNA binding and biological activity of oxazolopyridocarbazole-netropsin hybrid molecules
摘要:
A series of bifunctional molecules have been synthesized which result from the combination of a DNA sequence-specific ligand (netropsin) coupled to an intercalator moiety (OPC). The binding constants to double-stranded polynucleotides as well as the cytostatic activity against both murine and human tumor cell lines and the in vitro activity against a range of DNA and RNA viruses (including human immunodeficiency virus) have been determined for these novel molecules. All of them retain the DNA binding affinity of netropsin but with a notable decrease of A-T sequence selectivity. They did not show in vitro antiviral activity. On the other hand, these compounds demonstrated enhanced cytostatic activity against both human and murine tumor cell lines.