Synthesis and biological evaluation of novel benzo[a]pyridazino[3,4-c]phenazine derivatives

Bioorg Med Chem Lett. 2021 Jul 1:43:128054. doi: 10.1016/j.bmcl.2021.128054. Epub 2021 Apr 22.

Abstract

A convenient microwave-assisted one-pot four-component synthetic approach was developed en route to novel functionalized benzo[a]pyridazino[3,4-c]phenazine derivatives starting from 2-hydroxy-1,4-naphthoquinone, aromatic aldehydes, methyl hydrazine and o-phenylenediamine. Nine new derivatives were successfully synthesized and subsequently evaluated in terms of their biological profiles. The results revealed good cytotoxic activities of compounds 6a, 6h against KB, HepG2, Lu1 and MCF7 human cancer cell lines. Besides that, compound 6d exhibited promising antimicrobial activities toward Staphylococcuc aureus and Bacillus subtilis bacterial strains with IC50 < 6 μM.

Keywords: 2-Hydroxy-1,4-naphthoquinone; 4-c]Phenazines; Antimicrobial activity; Benzo[a]pyridazino[3,4-c]phenazines; Cytotoxicity; Multicomponent reactions.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / chemical synthesis
  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / pharmacology*
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Bacillus subtilis / drug effects*
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Dose-Response Relationship, Drug
  • Drug Screening Assays, Antitumor
  • Humans
  • Microbial Sensitivity Tests
  • Molecular Structure
  • Phenazines / chemical synthesis
  • Phenazines / chemistry
  • Phenazines / pharmacology*
  • Pyridazines / chemical synthesis
  • Pyridazines / chemistry
  • Pyridazines / pharmacology*
  • Staphylococcus aureus / drug effects*
  • Structure-Activity Relationship

Substances

  • Anti-Bacterial Agents
  • Antineoplastic Agents
  • Phenazines
  • Pyridazines