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.
A novel series of cathepsinKinhibitors derived from Novartis compound I is described. Optimization of the P1, P3, and P1' units led to the identification of 4-aminophenoxyacetic acid 24b with an IC(50) value of 4.8 nM, which possessed an excellent selectivity over other human cathepsins and good pharmacokinetic (PK) properties. Oral administration of compound 24b to ovariectomized (OVX) rats showed
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.