Design, synthesis and pharmacological evaluation of novel substituted quinoline-2-carboxamide derivatives as human dihydroorotate dehydrogenase (hDHODH) inhibitors and anticancer agents

Eur J Med Chem. 2014 Jul 23:82:385-93. doi: 10.1016/j.ejmech.2014.05.064. Epub 2014 May 27.

Abstract

In continuation of our research for novel human dihydroorotate dehydrogenase (hDHODH) inhibitors, herein we reported design, synthesis and pharmacological evaluation of novel substituted quinoline-2-carboxamide derivatives. Human DHODH enzyme inhibition assay was used to screen the synthesized compounds as hDHODH inhibitors. The synthesized compounds were also evaluated for their antiproliferative effects on the cancer cell lines (HEP-3B and A-375) to establish a proof as anticancer agents. The chemical structures of compounds were confirmed by (1)H, (13)C NMR, IR, MS and elemental analysis. The purity of compounds was also checked by HPLC analysis. Compounds with bulky groups (-OCH3, -OCF3 and -CF3) at C6-position of quinoline ring showed good activity.

Keywords: Anticancer agents; Dihydroorotate dehydrogenase (DHODH); Pyrimidine biosynthesis; Quinolines; hDHODH inhibitors.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Dihydroorotate Dehydrogenase
  • Dose-Response Relationship, Drug
  • Drug Design*
  • Drug Screening Assays, Antitumor
  • Enzyme Inhibitors / chemical synthesis
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology*
  • Humans
  • Molecular Structure
  • Oxidoreductases Acting on CH-CH Group Donors / antagonists & inhibitors*
  • Oxidoreductases Acting on CH-CH Group Donors / metabolism
  • Quinolines / chemical synthesis
  • Quinolines / chemistry
  • Quinolines / pharmacology*
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents
  • Dihydroorotate Dehydrogenase
  • Enzyme Inhibitors
  • Quinolines
  • Oxidoreductases Acting on CH-CH Group Donors