Novel HIV-1 capsid-targeting small molecules of the PF74 binding site
作者:Lei Wang、Mary C. Casey、Sanjeev Kumar V. Vernekar、Rajkumar Lalji Sahani、Jayakanth Kankanala、Karen A. Kirby、Haijuan Du、Atsuko Hachiya、Huanchun Zhang、Philip R. Tedbury、Jiashu Xie、Stefan G. Sarafianos、Zhengqiang Wang
DOI:10.1016/j.ejmech.2020.112626
日期:2020.10
stability in liver microsomes. Molecularmodeling was performed to verify compound binding to the PF74 site. In the end, 5-hydroxyindole analogs (8,9 and 12) showed improved potency (up to 20-fold) over PF74. Of the novel sub-chemotypes, α- and β-naphthyl analogs (33 and 27) exhibited sub micromolar antiviral potencies comparable to that of PF74. Interestingly, although only moderately inhibiting HIV-1 (single-digit
HIV-1 衣壳蛋白 (CA) 中的PF74结合位点是一个引人注目的抗病毒药物靶点。尽管PF74通过与宿主因子竞争 CA 结合来赋予机械上不同的抗病毒表型,但它的代谢稳定性低得令人望而却步。因此,人们对设计新的PF74亚化学型越来越感兴趣。具有相似的结合模式和改善的代谢稳定性。我们在此报告了我们为设计新型 CA 靶向小分子而探索域间相互作用吲哚部分的努力。我们的设计包括对吲哚环的简单取代,更重要的是,用少数富电子环取代吲哚部分的新型亚化学型。合成并评估了所有 56 种新型类似物的抗病毒活性、细胞毒性和对 CA 六聚体稳定性的影响。对选定的类似物在肝微粒体中的代谢稳定性进行了测试。进行分子建模以验证化合物与PF74位点的结合。最后,5-羟基吲哚类似物(8,9和12)上显示出改善的效力(高达20倍)PF74。在新的亚化学型中,α-和 β-萘基类似物(33和27)表现出与PF74相当的亚微摩尔抗病毒效力。有趣的是,虽然仅适度抑制
ANTIVIRAL COMPOUNDS
申请人:REGENTS OF THE UNIVERSITY OF MINNESOTA
公开号:US20210322416A1
公开(公告)日:2021-10-21
The invention provides a compound of formula I, formula II, or formula III:
or a salt thereof, wherein R
1
-R
10
have any of the values described in the specification, as well as compositions comprising a compound of formula I. The compounds are useful as HIV-1 CA-targeting molecules and as antiviral agents.
Identification of non-peptidic cysteine reactive fragments as inhibitors of cysteine protease rhodesain
作者:Danielle McShan、Stefan Kathman、Brittiney Lowe、Ziyang Xu、Jennifer Zhan、Alexander Statsyuk、Ifedayo Victor Ogungbe
DOI:10.1016/j.bmcl.2015.08.074
日期:2015.10
Rhodesain, the major cathepsin L-like cysteine protease in the protozoan Trypanosoma brucei rhodesiense, the causative agent of African sleeping sickness, is a well-validated drug target. In this work, we used a fragment-based approach to identify inhibitors of this cysteine protease, and identified inhibitors of T. brucei. To discover inhibitors active against rhodesain and T. brucei, we screened a library of covalent fragments against rhodesain and conducted preliminary SAR studies. We envision that in vitro enzymatic assays will further expand the use of the covalent tethering method, a simple fragment-based drug discovery technique to discover covalent drug leads. (C) 2015 Elsevier Ltd. All rights reserved.
A Fragment-Based Method to Discover Irreversible Covalent Inhibitors of Cysteine Proteases
作者:Stefan G. Kathman、Ziyang Xu、Alexander V. Statsyuk
DOI:10.1021/jm500345q
日期:2014.6.12
reported which irreversibly tethers drug-like fragments to catalytic cysteines. We attached an electrophile to 100 fragments without significant alterations in the reactivity of the electrophile. A mass spectrometry assay discovered three nonpeptidic inhibitors of the cysteineprotease papain. The identified compounds display the characteristics of irreversibleinhibitors. The irreversible tethering system