Optimization of N-benzoylindazole derivatives as inhibitors of human neutrophil elastase.
Optimization of N-benzoylindazole derivatives as inhibitors of human neutrophil elastase.
复制标题
DOI:
10.1021/jm400742j
复制
发表时间:
2013-08-08
影响因子:
7.3
通讯作者:
Giovannoni MP
中科院分区:
文献类型:
--
作者:
Crocetti L;Schepetkin IA;Cilibrizzi A;Graziano A;Vergelli C;Giomi D;Khlebnikov AI;Quinn MT;Giovannoni MP
Human neutrophil elastase (HNE) is an important therapeutic target for treatment of pulmonary diseases. Previously, we identified novel N-benzoylindazole derivatives as potent, competitive, and pseudoirreversible HNE inhibitors. Here, we report further development of these inhibitors with improved potency, protease selectivity, and stability compared to our previous leads. Introduction of a variety of substituents at position 5 of the indazole resulted in the potent inhibitor 20f (IC50~10 nM), and modifications at position 3 resulted the most potent compound in this series, the 3-CN derivative 5b (IC50= 7 nM); both derivatives demonstrated good stability and specificity for HNE versus other serine proteases. Molecular docking of selected N-benzoylindazoles into the HNE binding domain suggested that inhibitory activity depended on geometry of the ligand-enzyme complexes. Indeed, the ability of a ligand to form a Michaelis complex and favorable conditions for proton transfer between Hys57, Asp102 and Ser195 both affected activity.
登录
查看更多内容
影响因子:
3.5
作者:
Crocetti, Letizia;Giovannoni, Maria Paola;Vergelli, Claudia
通讯作者:
Vergelli, Claudia
影响因子:
27.4
作者:
Kawabata, K;Moore, AR;Willoughby, DA
通讯作者:
Willoughby, DA
影响因子:
37.8
作者:
Dollery, CM;Owen, CA;Libby, P
通讯作者:
Libby, P
影响因子:
2.8
作者:
Moroy, Gautier;Alix, Alain J. P.;Bourguet, Erika
通讯作者:
Bourguet, Erika
影响因子:
10
作者:
O'Donnell, RA;Peebles, C;Djukanovic, R
通讯作者:
Djukanovic, R