Antimitotic and antivascular activity of heteroaroyl-2-hydroxy-3,4,5-trimethoxybenzenes

Bioorg Med Chem. 2015 Aug 1;23(15):4230-4236. doi: 10.1016/j.bmc.2015.06.043. Epub 2015 Jun 25.

Abstract

This study reports the synthesis of a series of heteroaroyl-2-hydroxy-3,4,5-trimethoxybenzenes, which are potent antitubulin agents. Compound 13, (2-hydroxy-3,4,5-trimethoxyphenyl)-(6-methoxy-1H-indol-3-yl)-methanone exhibits marked antiproliferative activity against KB and MKN45 cells with IC50 values of 8.8 and 10.5 nM, respectively, binds strongly to the colchicine binding site and leads to inhibition of tubulin polymerization. It also behaves as a vascular disrupting agent which suppresses the formation of capillaries. The C2-OH group in the A-ring of this compound not only retains the biological activity but has valuable physicochemical properties.

Keywords: Antiproliferative; CA-4; Vascular-disrupting agents.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Angiogenesis Inhibitors / chemistry
  • Angiogenesis Inhibitors / pharmacology
  • Antimitotic Agents / chemistry*
  • Antimitotic Agents / metabolism
  • Antimitotic Agents / pharmacology*
  • Benzene / chemistry
  • Binding Sites
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Chemistry Techniques, Synthetic
  • Colchicine / metabolism
  • Drug Evaluation, Preclinical / methods*
  • Drug Resistance, Neoplasm / drug effects
  • HT29 Cells / drug effects
  • Human Umbilical Vein Endothelial Cells / drug effects
  • Humans
  • Inhibitory Concentration 50
  • Structure-Activity Relationship
  • Tubulin Modulators / chemistry
  • Tubulin Modulators / metabolism
  • Tubulin Modulators / pharmacology

Substances

  • Angiogenesis Inhibitors
  • Antimitotic Agents
  • Tubulin Modulators
  • Benzene
  • Colchicine