Novel and potent cyclic cyanamide-based cathepsin K inhibitors

Bioorg Med Chem Lett. 2005 Apr 1;15(7):1815-9. doi: 10.1016/j.bmcl.2005.02.033.

Abstract

Starting from a PDE IV inhibitor hit derived from high throughput screening of the compound collection, a key pyrrolidine cyanamide pharmacophore was identified. Modifications of the pyrrolidine ring produced enhancements in cathepsin K inhibition. An X-ray co-crystal structure of a cyanamide with cathepsin K confirmed the mode of inhibition.

MeSH terms

  • Animals
  • Cathepsin K
  • Cathepsins / antagonists & inhibitors*
  • Crystallography, X-Ray
  • Cyanamide / chemistry*
  • Cyclization
  • Cysteine Proteinase Inhibitors / chemical synthesis*
  • Cysteine Proteinase Inhibitors / pharmacology
  • Inhibitory Concentration 50
  • Pyrrolidines / chemistry
  • Structure-Activity Relationship

Substances

  • Cysteine Proteinase Inhibitors
  • Pyrrolidines
  • Cyanamide
  • Cathepsins
  • Cathepsin K
  • pyrrolidine