Boro-norleucine as a P1 residue for the design of selective and potent DPP7 inhibitors

Bioorg Med Chem Lett. 2005 Oct 1;15(19):4256-60. doi: 10.1016/j.bmcl.2005.06.076.

Abstract

Dipeptide-based inhibitors with C-substituted (alkyl or aminoalkyl) alpha-amino acids in the P2 position and boro-norleucine (boro-Nle) in the P1 position were synthesized. Relative to boro-proline, boro-Nle as a P1 residue was shown able to significantly dial out DPP4, FAP, DPP8, and DPP9 activity. Dab-boro-Nle (4g) proved to be the most selective and potent DPP7 inhibitor with a DPP7 IC50 value of 480 pM.

MeSH terms

  • Boronic Acids*
  • Dipeptides / chemical synthesis
  • Dipeptides / pharmacology
  • Dipeptidyl-Peptidases and Tripeptidyl-Peptidases / antagonists & inhibitors*
  • Drug Design
  • Humans
  • Inhibitory Concentration 50
  • Norleucine / analogs & derivatives*
  • Norleucine / pharmacology
  • Structure-Activity Relationship
  • Substrate Specificity

Substances

  • Boronic Acids
  • Dipeptides
  • Norleucine
  • Dipeptidyl-Peptidases and Tripeptidyl-Peptidases
  • dipeptidyl peptidase II