Dipeptide nitrile inhibitors of cathepsin K
Eva Altmann1, Reiner Aichholz, Claudia Betschart
1Novartis Institutes for BioMedical Research, CH-4002 Basel, Switzerland. eva.altmann@novartis.com
Bioorganic & Medicinal Chemistry Letters
|February 17, 2006
Abstract:
A series of dipeptidyl nitriles as inhibitors of cathepsin K have been explored starting from lead structure 1 (Cbz-Leu-NH-CH2-CN, IC50 = 39 nM). Attachment of non-natural amino acid side chains in P1 and modification of the P3 subunit led to inhibitors with higher potency and improved pharmacokinetic properties.

