Design, synthesis, and biological evaluation of 1, 3-disubstituted-pyrazole derivatives as new class I and IIb histone deacetylase inhibitors

Eur J Med Chem. 2014 Oct 30:86:639-52. doi: 10.1016/j.ejmech.2014.09.024. Epub 2014 Sep 8.

Abstract

A novel series of HDAC inhibitors demonstrating class I and IIb subtype selectivity have been identified using a scaffold-hopping strategy. Several designed compounds showed better selectivity for class I and IIb over class IIa HDAC isoforms comparing to the FDA approved HDAC targeting drug SAHA. A representative lead compound 22 bearing a biphenyl moiety demonstrated promising class I and IIb HDAC isoforms selectivity and in vitro anticancer activities against several cancer cell lines. This work could serve as a fundamental platform for further exploration of selective HDAC inhibitors using designed molecular scaffold.

Keywords: HDAC; Isoforms selectivity; Scaffold-hopping; Structure–activity relationship.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Cell Proliferation / drug effects
  • Cell Survival / drug effects
  • Crystallography, X-Ray
  • Dose-Response Relationship, Drug
  • Drug Design*
  • Drug Screening Assays, Antitumor
  • HeLa Cells
  • Histone Deacetylase 1 / antagonists & inhibitors*
  • Histone Deacetylase 1 / metabolism
  • Histone Deacetylase 2 / antagonists & inhibitors*
  • Histone Deacetylase 2 / metabolism
  • Histone Deacetylase Inhibitors / chemical synthesis
  • Histone Deacetylase Inhibitors / chemistry
  • Histone Deacetylase Inhibitors / pharmacology*
  • Humans
  • K562 Cells
  • MCF-7 Cells
  • Models, Molecular
  • Molecular Structure
  • Pyrazoles / chemical synthesis
  • Pyrazoles / chemistry
  • Pyrazoles / pharmacology*
  • Structure-Activity Relationship
  • Tumor Cells, Cultured
  • U937 Cells

Substances

  • Antineoplastic Agents
  • Histone Deacetylase Inhibitors
  • Pyrazoles
  • pyrazole
  • Histone Deacetylase 1
  • Histone Deacetylase 2