Benzo[c][1,2,5]thiadiazole derivatives: A new class of potent Src homology-2 domain containing protein tyrosine phosphatase-2 (SHP2) inhibitors

Bioorg Med Chem Lett. 2017 Dec 1;27(23):5154-5157. doi: 10.1016/j.bmcl.2017.10.059. Epub 2017 Oct 26.

Abstract

The Src homology-2 domain containing protein tyrosine phosphatase-2 (SHP2) is an oncogenic phosphatase linked to various kinds of cancers. Consequently, SHP2 has emerged as a promising target for novel anti-cancer agents. Using scaffold-hopping strategy, a series of benzo[c][1,2,5]thiadiazole derivatives was designed from PTP1B inhibitors with 1H-2,3-Dihydroperimidine motif, synthesized and evaluated their biological activities against PTP1B and SHP2. Among them, the representative compound 11g displayed SHP2 inhibitory activity with IC50 of 2.11 ± 0.99 μM, exhibited 2.02-fold and 25-fold selectivity for SHP2 over SHP1 and PTP1B respectively and had no visible activity against TCPTP. These preliminary results could provide a possible opportunity for the development of novel SHP2 inhibitors with optimal potency and improved pharmacological properties.

Keywords: Benzo[c][1,2,5]thiadiazole derivatives; Inhibitors; PTP1B; SHP2; Structure-activity relationships (SAR).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Binding Sites
  • Enzyme Inhibitors / chemistry*
  • Enzyme Inhibitors / metabolism
  • Humans
  • Inhibitory Concentration 50
  • Molecular Docking Simulation
  • Protein Domains
  • Protein Tyrosine Phosphatase, Non-Receptor Type 1 / antagonists & inhibitors
  • Protein Tyrosine Phosphatase, Non-Receptor Type 1 / metabolism
  • Protein Tyrosine Phosphatase, Non-Receptor Type 11 / antagonists & inhibitors*
  • Protein Tyrosine Phosphatase, Non-Receptor Type 11 / chemistry
  • Protein Tyrosine Phosphatase, Non-Receptor Type 11 / metabolism
  • Structure-Activity Relationship
  • Thiadiazoles / chemistry*
  • Thiadiazoles / metabolism

Substances

  • Enzyme Inhibitors
  • Thiadiazoles
  • Protein Tyrosine Phosphatase, Non-Receptor Type 1
  • Protein Tyrosine Phosphatase, Non-Receptor Type 11