Identification of (N-aryl-N-arylsulfonyl)aminoacetohydroxamic acids as novel urease inhibitors and the mechanism exploration

Bioorg Chem. 2023 Jan:130:106275. doi: 10.1016/j.bioorg.2022.106275. Epub 2022 Nov 14.

Abstract

Thirty-three (N-aryl-N-arylsulfonyl)aminoacetohydroxamic acids were synthesized in an effort to develop novel urease inhibitors. Among these compounds, 2-(N-(3-nitrophenyl)-N-(4-tert-butylphenylsulfonyl))aminoacetohydroxamic acid (e2) exhibited excellent inhibitory activity against Helicobacter pylori urease with no perceptible cytotoxicity to mammalian cells. Compound e2 showed over 690-fold higher potency than the clinical used urease inhibitor acetohydroxamic acid, reversibly inhibiting urease with a mixed mechanism. Molecular modeling revealed that (N-aryl-N-arylsulfonyl)aminoacetohydroxamic acids may possibly bind Ni ions and two hydrophobic regions with a 'Y'-like shape.

Keywords: Arylsulfonamide; Hydroxamic acid; Kinetic study; Molecular docking; Urease inhibitor.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anti-Bacterial Agents / pharmacology
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology
  • Helicobacter pylori*
  • Mammals / metabolism
  • Models, Molecular
  • Urease*

Substances

  • Urease
  • Enzyme Inhibitors
  • Anti-Bacterial Agents