Discovery of Highly Polar β-Homophenylalanine Derivatives as Nonsystemic Intestine-Targeted Dipeptidyl Peptidase IV Inhibitors

J Med Chem. 2019 Dec 12;62(23):10919-10925. doi: 10.1021/acs.jmedchem.9b01649. Epub 2019 Dec 3.

Abstract

Although intensively expressed within intestine, the precise roles of intestinal dipeptidyl peptidase IV (DPPIV) in numerous pathologies remain incompletely understood. Here, we first reported a nonsystemic intestine-targeted (NSIT) DPPIV inhibitor with β-homophenylalanine scaffold, compound 7, which selectively inhibited the intestinal rather than plasmatic DPPIV at an oral dosage as high as 30 mg/kg. We expect that compound 7 could serve as a qualified tissue-selective tool to determine undetected physiological or pathological roles of intestinal DPPIV.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Caco-2 Cells
  • Cell Fractionation
  • Dipeptidyl Peptidase 4*
  • Dipeptidyl-Peptidase IV Inhibitors / chemical synthesis*
  • Dipeptidyl-Peptidase IV Inhibitors / chemistry
  • Dipeptidyl-Peptidase IV Inhibitors / pharmacology*
  • Drug Delivery Systems
  • Drug Design
  • Humans
  • Intestines
  • Mice
  • Molecular Structure
  • Permeability

Substances

  • Dipeptidyl-Peptidase IV Inhibitors
  • DPP4 protein, human
  • Dipeptidyl Peptidase 4