Synthesis, SAR and docking studies of substituted aryl phenylthiazolyl phenylcarboxamide as potential protein tyrosine phosphatase 1B (PTP1B) inhibitors

Chem Biol Drug Des. 2019 Jul;94(1):1378-1389. doi: 10.1111/cbdd.13515. Epub 2019 Jun 5.

Abstract

In our continued effort to discover novel PTP1B inhibitor with improved in vivo activity, we attempted to optimize our previously discovered lead compound by replacing the sulfonyl group with benzoyl group to yield compound II. Additional structural modifications were performed on compound II to yield a series of 24 aryl phenylthiazolyl phenylcarboxamides as potential PTP1B inhibitors. Of the 24 tested, 6 compounds showed good PTP1B inhibitory activity while compound 38 as the most promising one. The plausible PTP1B-binding site interaction of compound 38 showed favourable binding similar to known PTP1B binders and suggests its selectivity towards PTP1B. Compound 38 also showed promising antihyperglycaemic, antidyslipidaemic and insulin resistant reversal activities in vivo in STZ model and db/db mice model. Altogether, the compound 38 presents an excellent candidate for future PTP1B targeted drug discovery.

Keywords: PTP1B; Type 2 diabetes; aryl thiazolyl phenyl benzamide; docking.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Amides / chemistry*
  • Amides / metabolism
  • Amides / therapeutic use
  • Animals
  • Binding Sites
  • Blood Glucose / analysis
  • Catalytic Domain
  • Diabetes Mellitus, Experimental / chemically induced
  • Diabetes Mellitus, Experimental / drug therapy
  • Diabetes Mellitus, Experimental / pathology
  • Drug Design
  • Enzyme Inhibitors / chemical synthesis*
  • Enzyme Inhibitors / metabolism
  • Enzyme Inhibitors / therapeutic use
  • Glucose Tolerance Test
  • Humans
  • Hypoglycemic Agents / chemical synthesis*
  • Hypoglycemic Agents / metabolism
  • Hypoglycemic Agents / therapeutic use
  • Hypolipidemic Agents / chemistry
  • Hypolipidemic Agents / metabolism
  • Hypolipidemic Agents / therapeutic use
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Mice, Obese
  • Molecular Docking Simulation*
  • Protein Tyrosine Phosphatase, Non-Receptor Type 1 / antagonists & inhibitors*
  • Protein Tyrosine Phosphatase, Non-Receptor Type 1 / metabolism
  • Structure-Activity Relationship

Substances

  • Amides
  • Blood Glucose
  • Enzyme Inhibitors
  • Hypoglycemic Agents
  • Hypolipidemic Agents
  • Protein Tyrosine Phosphatase, Non-Receptor Type 1