Design, synthesis and biological evaluation of bisthiazole-based trifluoromethyl ketone derivatives as potent HDAC inhibitors with improved cellular efficacy

Eur J Med Chem. 2016 Apr 13:112:81-90. doi: 10.1016/j.ejmech.2016.02.003. Epub 2016 Feb 4.

Abstract

Histone deacetylases (HDACs) are a class of epigenetic modulators with complex functions in histone post-translational modifications and are well known targets for antineoplastic drugs. We have previously developed a series of bisthiazole-based hydroxamic acids as novel potent HDAC inhibitors. In the present work, a new series of bisthiazole-based compounds with different zinc binding groups (ZBGs) have been designed and synthesized. Among them is compound 7, containing a trifluoromethyl ketone as the ZBG, which displays potent inhibitory activity towards human HDACs and improved antiproliferative activity in several cancer cell lines.

Keywords: Bisthiazole; Histone deacetylases; Trifluoromethyl ketones; ZBG.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry*
  • Antineoplastic Agents / pharmacology*
  • Cell Line, Tumor
  • Drug Design
  • Drug Screening Assays, Antitumor
  • Halogenation
  • Histone Deacetylase Inhibitors / chemical synthesis
  • Histone Deacetylase Inhibitors / chemistry*
  • Histone Deacetylase Inhibitors / pharmacology*
  • Humans
  • Ketones / chemical synthesis
  • Ketones / chemistry
  • Ketones / pharmacology
  • Methylation
  • Neoplasms / drug therapy
  • Neoplasms / enzymology
  • Structure-Activity Relationship
  • Thiazoles / chemical synthesis
  • Thiazoles / chemistry*
  • Thiazoles / pharmacology*
  • Zinc / metabolism

Substances

  • Antineoplastic Agents
  • Histone Deacetylase Inhibitors
  • Ketones
  • Thiazoles
  • Zinc