Vinyl sulfone-based inhibitors of trypanosomal cysteine protease rhodesain with improved antitrypanosomal activities
作者:Huaisheng Zhang、Jasmine Collins、Rogers Nyamwihura、Olamide Crown、Oluwatomi Ajayi、Ifedayo Victor Ogungbe
DOI:10.1016/j.bmcl.2020.127217
日期:2020.7
antitrypanosomal agents, we found that partially saturated quinoline-based vinyl sulfone compounds selectively inhibit the growth of T. brucei but displayed relatively weak inhibitory activity towards T. brucei’s cysteineprotease rhodesain. While two nitroaromatic analogues of the quinoline-based vinyl sulfone compounds displayed potent inhibition of T. brucei and rhodesain. The quinoline derivatives and
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.
COVALENT INHIBITORS OF EQUINE ENCEPHALITIS VIRUS
申请人:Jackson State University
公开号:US20220235007A1
公开(公告)日:2022-07-28
Embodiments and methods for a new class of potent non-peptidic covalent inhibitors of nsP2 cysteine protease that inhibit Venezuelan equine encephalitis virus's (VEEV) replication in neuroblasts are disclosed. More particularly, an acrylate and vinyl sulfone-based chemical series were investigated as promising starting scaffolds against VEEV and as inhibitors of the cysteine protease domain of VEEV's non-structural protein 2 (nsP2). The invention discloses compounds of Formula I and analogues for treatment of VEEV.
Vinyl Sulfone-Based Inhibitors of Nonstructural Protein 2 Block the Replication of Venezuelan Equine Encephalitis Virus
作者:Huaisheng Zhang、Moeshia Harmon、Sheli R. Radoshitzky、Veronica Soloveva、Christopher D. Kane、Allen J. Duplantier、Ifedayo Victor Ogungbe
DOI:10.1021/acsmedchemlett.0c00215
日期:2020.11.12
an acrylate and vinyl sulfone-based chemical series was investigated as promising starting scaffolds against VEEV and as inhibitors of the cysteineprotease domain of VEEV’s nonstructural protein 2 (nsP2). Primary screen and dose response studies were performed to evaluate the potency and cytotoxicity of the compounds. The results provide structural insights into a new class of potent nonpeptidic covalent