Novel cell-penetrating α-keto-amide calpain inhibitors as potential treatment for muscular dystrophy
摘要:
Dipeptide-derived alpha-keto-amide compounds with potent calpain inhibitory activity have been identified. These reversible covalent inhibitors have IC50 values down to 25 nM and exhibit greatly improved activity in muscle cells compared to the reference compound MDL28170. Several novel calpain inhibitors have shown positive effects on histological parameters in an animal model of Duchenne muscular dystrophy demonstrating their potential as a treatment option for this fatal disease. (c) 2005 Elsevier Ltd. All rights reserved.
The present invention provides compounds of formula (I): compositions comprising such compounds; the use of such compounds in therapy (such as asthma or COPD); and methods of treating patients with such compounds; wherein R1 to R20 and A1 are as defined herein.
[EN] AMINOTHIAZOLE DERIVATIVES USEFUL AS KLK1 INHIBITORS<br/>[FR] DÉRIVÉS AMINOTHIAZOLE UTILES COMME INHIBITEURS DE LA KLK1
申请人:VANTIA LTD
公开号:WO2011051673A1
公开(公告)日:2011-05-05
The present invention provides compounds of formula (I): compositions comprising such compounds; the use of such compounds in therapy (such as asthma or COPD); and methods of treating patients which such compounds; wherein R1 to R17 and A1 are as defined herein.
Macrocyclic inhibitors of rhodesain (RD), a parasitic cysteine protease and drug target for the treatment of human African trypanosomiasis, have shown low metabolic stability at the macrocyclic ether bridge. A series of acyclic dipeptidyl nitriles was developed using structure-baseddesign (PDB ID: 6EX8). The selectivity against the closely related cysteine protease human cathepsin L (hCatL) was substantially
罗德沙星(RD)的大环抑制剂是一种寄生的半胱氨酸蛋白酶,是治疗人类非洲锥虫病的药物靶标,在大环醚桥处显示出较低的代谢稳定性。使用基于结构的设计(PDB ID:6EX8)开发了一系列无环二肽腈。对紧密相关的半胱氨酸蛋白酶人组织蛋白酶L(hCatL)的选择性大大提高,提高了507倍。在S2口袋中,3,4-二氯苯丙氨酸残基具有很高的锥虫杀虫活性。在S3袋中,芳族残基提供了增强的针对hCatL的选择性。布鲁氏罗氏锥虫的RD抑制(K i值)和体外细胞生长(IC 50在纳摩尔范围内测量。通过安全克级流量生产1 H -1,2,3-三唑-4羧酸乙酯获得的基于三唑的配体在人肝微粒体中表现出出色的代谢稳定性,体内半衰期高达1.53 h在小鼠中。当口服给予感染的小鼠时,寄生虫血症减少了,但没有完全清除寄生虫。
Biomimetic Macrocyclic Inhibitors of Human Cathepsin D: Structure–Activity Relationship and Binding Mode Analysis
optimization, mapping of subsite interactions, and profiling of inhibitor selectivity. Furthermore, we solved high-resolution crystal structures of three macrocyclic inhibitors with low nanomolar or subnanomolar potency in complex with CatD and determined their bindingmode using quantum chemical calculations. The study provides a new structural template and functional profile that can be exploited for design