Synthesis, biological evaluation and molecular docking studies of benzyloxyacetohydroxamic acids as LpxC inhibitors
摘要:
The inhibition of the UDP-3-O-[(R)-3-hydroxymyristoyl]-N-acetylglucosamine deacetylase (LpxC) represents a promising strategy to combat infections caused by multidrug-resistant Gram-negative bacteria. In order to elucidate the functional groups being important for the inhibition of LpxC, the structure of our previously reported hydroxamic acid 4 should be systematically varied. Therefore, a series of benzyloxyacetohydroxamic acids was prepared, of which the diphenylacetylene derivatives 28 (K-i = 95 nM) and 21 (K-i = 66 nM) were the most potent inhibitors of Escherichia coli LpxC. These compounds could be synthesized in a stereoselective manner employing a Sharpless asymmetric dihydroxylation and a Sonogashira coupling in the key steps. The obtained structure-activity relationships could be rationalized by molecular docking studies. (C) 2013 Elsevier Ltd. All rights reserved.
Phenylethylene glycol-derived LpxC inhibitors with diverse Zn2+-binding groups
作者:Magdalena Galster、Marius Löppenberg、Fabian Galla、Frederik Börgel、Oriana Agoglitta、Johannes Kirchmair、Ralph Holl
DOI:10.1016/j.tet.2018.12.011
日期:2019.1
hydroxamate moiety by other Zn2+-binding groups while maintaining target activity. In total, 15 phenylethylene glycol derivatives with diverse Zn2+-binding groups like carboxylate, hydrazide, carboxamide, sulfonamide, vicinal diol, thiol, thioester, and hydroxypyridinone moieties were prepared in divergent syntheses. However, their biological evaluation revealed that the replacement of the hydroxamate
Synthesis, biological evaluation and molecular docking studies of benzyloxyacetohydroxamic acids as LpxC inhibitors
作者:Marina Szermerski、Jelena Melesina、Kanin Wichapong、Marius Löppenberg、Joachim Jose、Wolfgang Sippl、Ralph Holl
DOI:10.1016/j.bmc.2013.12.057
日期:2014.2
The inhibition of the UDP-3-O-[(R)-3-hydroxymyristoyl]-N-acetylglucosamine deacetylase (LpxC) represents a promising strategy to combat infections caused by multidrug-resistant Gram-negative bacteria. In order to elucidate the functional groups being important for the inhibition of LpxC, the structure of our previously reported hydroxamic acid 4 should be systematically varied. Therefore, a series of benzyloxyacetohydroxamic acids was prepared, of which the diphenylacetylene derivatives 28 (K-i = 95 nM) and 21 (K-i = 66 nM) were the most potent inhibitors of Escherichia coli LpxC. These compounds could be synthesized in a stereoselective manner employing a Sharpless asymmetric dihydroxylation and a Sonogashira coupling in the key steps. The obtained structure-activity relationships could be rationalized by molecular docking studies. (C) 2013 Elsevier Ltd. All rights reserved.