Discovery of novel 2-[2-(3-hydroxy-pyridin-2-yl)-thiazol-4-yl]-acetamide derivatives as HIF prolyl 4-hydroxylase inhibitors; SAR, synthesis and modeling evaluation

Bioorg Med Chem Lett. 2014 Jul 15;24(14):3142-5. doi: 10.1016/j.bmcl.2014.05.003. Epub 2014 May 15.

Abstract

The design, synthesis, and capacity to inhibit HIF prolyl 4-hydroxylases (PHDs) are described for 2-[2-(3-hydroxy-pyridin-2-yl)-thiazol-4-yl]-acetamide analogs. These analogs revealed two kinds of novel scaffolds as PHD2 inhibitors. Synthetic routes were developed for the preparation of their analogs containing the new scaffolds. In addition, the structure-activity relationship (SAR) of the 2-[2-(3-hydroxy-pyridin-2-yl)-thiazol-4-yl]-acetamide derivatives and their biological activities were reported. The complex structure of compound 18 with PHD2 was also obtained for the purpose of more efficient lead optimization.

Keywords: EPO; HIF-PHs (PHDs); Inhibitor; Stabilizer.

MeSH terms

  • Acetamides / chemical synthesis
  • Acetamides / chemistry
  • Acetamides / pharmacology*
  • Dose-Response Relationship, Drug
  • Drug Discovery*
  • Enzyme Inhibitors / chemical synthesis
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology*
  • Humans
  • Hypoxia-Inducible Factor-Proline Dioxygenases / antagonists & inhibitors*
  • Hypoxia-Inducible Factor-Proline Dioxygenases / metabolism
  • Models, Molecular
  • Molecular Structure
  • Pyridines / chemical synthesis
  • Pyridines / chemistry
  • Pyridines / pharmacology*
  • Structure-Activity Relationship
  • Thiazoles / chemical synthesis
  • Thiazoles / chemistry
  • Thiazoles / pharmacology*

Substances

  • Acetamides
  • Enzyme Inhibitors
  • Pyridines
  • Thiazoles
  • Hypoxia-Inducible Factor-Proline Dioxygenases