SAR-Based Optimization of a 4-Quinoline Carboxylic Acid Analogue with Potent Antiviral Activity
作者:Priyabrata Das、Xiaoyi Deng、Liang Zhang、Michael G. Roth、Beatriz M. A. Fontoura、Margaret A. Phillips、Jef K. De Brabander
DOI:10.1021/ml300464h
日期:2013.6.13
It is established that drugs targeting viral proteins are at risk of generating resistant strains. However, drugs targeting host factors can potentially avoid this problem. Herein, we report structure-ctivity relationship studies leading to the discovery of a very potent lead compound 6-fluoro-2-(5-isopropyl-2-methyl-4-phenoxyphenyl) quinoline -4-carboxylic acid (C44) that inhibits human dihydroorotate dehydrogenase (DHODH) with an IC50 of 1 nM and viral replication of VSV and WSN-Influenza with an EC50 of 2 nM and 41 nM. We also solved the X-ray structure of human DHODH bound to C44, providing structural insight into the potent inhibition of biaryl ether analogues of brequinar.
TAKIGUTI, DAJGAKU;ODZEHKI, TAKASI
作者:TAKIGUTI, DAJGAKU、ODZEHKI, TAKASI
DOI:——
日期:——
JPS59204178A
申请人:——
公开号:JPS59204178A
公开(公告)日:1984-11-19
Amino Acid Promoted Ullmann Type Reaction with Low Catalyst Loading via Microwave Technology
作者:K. Uma Maheshwar Reddy、K. Santosh Kumar、A. Panasa Reddy
DOI:10.14233/ajchem.2014.16194
日期:——
This work describes CuBr-catalyzed cross-coupling of sterically hindered phenols with substituted aryl halides and hetero aryl halides under microwave conditions using commercially available amino acids as the reaction promoters and K3PO4 as the base. This protocol shown to tolerate sensitive functional groups like CN, CHO etc., Especially, in case of 3-bromopyridine coupling with substituted phenols supported this letter in track record of the reactivity.
Structural diversity derivatization and studies on the nematicidal activity of tropane derivatives
作者:Aoyun Lu、Yiting Zheng、Tao Li、Jiayi Wang、Gonghua Song
DOI:10.1016/j.phytol.2024.01.003
日期:2024.2
Starting from the structure of MDL 72222 and its analogs, the known 5-HT3 receptor antagonists with verified nematicidal activity, we evaluated a diverse array of tropane derivatives that are characterized by the introduction of a variety of pentatomic heterocycles as bioisosteric replacements for the ester moiety of these 5-HT3 receptor antagonists. The in vitro nematicidal activities of all the target