In continuation of our attempts to develop novelaldosereductaseinhibitors (ARIs), a number of compounds characterized by bioisosteric replacement of pharmacophors were prepared. On the one hand, the acidic function was formally replaced by an oxime or a nitro group and on the other hand the lipophilic substituent was modified. The results of the biological evaluation of these derivatives enabled
Discovery of N-hydroxy-3-alkoxybenzamides as direct acid sphingomyelinase inhibitors using a ligand-based pharmacophore model
作者:Kan Yang、Keyi Nong、Qinlan Gu、Jibin Dong、Jinxin Wang
DOI:10.1016/j.ejmech.2018.03.065
日期:2018.5
Acid sphingomyelinase (ASM) has been shown to be involved in many physiological processes, emerging to be a promising drug target. In this study, we constructed a ligand-based pharmacophore model of ASM inhibitors and applied this model to optimize the lead compound alpha-mangostin, a known inhibitor of ASM. 23 compounds were designed and evaluated in vitro for ASM inhibition, of these, 10 compounds were found to be more potent than alpha-mangostin. This high hit ratio confirmed that the presented model is very effective and practical. The most potent hit, 1c, was found to selectively and competitively inhibit the enzyme and inhibit the generation of ceramide in a dose-dependent manner. Furthermore, 1c showed favorable anti-apoptosis and anti-inflammatory activity. Interactions with key residues and the Zn2+ cofactor of 1c were found by docking simulation. These results provide promising leads and important guidance for further development of efficient ASM inhibitors and drug candidates. (C) 2018 Elsevier Masson SAS. All rights reserved.
114. The halogenation of phenolic ethers and anilides. Part XIV. m-Substituted phenyl ethers
作者:Brynmor Jones
DOI:10.1039/jr9430000430
日期:——
Hydrophobicity-oriented drug design (HODD) of new human 4-hydroxyphenylpyruvate dioxygenase inhibitors
作者:Ferdinand Ndikuryayo、Wei-Ming Kang、Feng-Xu Wu、Wen-Chao Yang、Guang-Fu Yang
DOI:10.1016/j.ejmech.2019.01.032
日期:2019.3
Involved in the tyrosine degradation pathway, 4-hydroxyphenylpyruvatedioxygenase (HPPD) is an important target for treating type I tyrosinemia. To discover novel HPPD inhibitors, we proposed a hydrophobicity-oriented drug design (HODD) strategy based on the interactions between HPPD and the commercial drug NTBC. Most of the new compounds showed improved activity, compound d23 being the most active