Arylamine based cathepsin K inhibitors: Investigating P3 heterocyclic substituents
摘要:
A modification of novel cathepsin K inhibitors I was carried out. The structural design was aimed at reducing the lipophilic character of compounds I for obtaining better pharmacokinetic profiles. This modification afforded several less lipophilic compounds with good inhibitory activities and pharmacokinetic profiles, although the enzyme selectivity over cathepsin S was left at issue. (c) 2006 Elsevier Ltd. All rights reserved.
We have designed and synthesized a novel series of 3-biphenylamino acid amides as cathepsin K inhibitors based on compound I. in these inhibitors, we have discovered 4-aminophenoxyacetic acids 43 and 47 with good IC50 values, although lipophilic groups are favorable for the hydrophobic S1' pocket. (C) 2005 Elsevier Ltd. All rights reserved.