Increased activity of apoptosis signal-regulating kinase 1 (ASK1) is associated with a number of human disorders and the inhibitors of ASK1 may become important compounds for pharmaceutical application. Here we report novel ASK1 inhibitor scaffold, namely 5-(5-Phenyl-furan-2-ylmethylene)-2-thioxo-thiazolidin-4-one, that has been identified using virtual screening and biochemical tests. A series of derivatives has been synthesized and evaluated in vitro towards human protein kinase ASK1. It was revealed that the most active compounds 4-((5Z)-5-{[5-(4-bromophenyl)-2-furyl]methylene}-4-oxo-2-thioxo-1,3-thiazolidin-3-yl)butanoic acid and 6-((5Z)-5-{[5-(4-bromophenyl)-2-furyl]methylene}-4-oxo-2-thioxo-1,3-thiazolidin-3-yl)hexanoic acid inhibit ASK1 with IC50 of 0.2 mu M. Structure activity relationships of 33 derivatives of 5-(5-Phenyl-furan-2-ylmethylene)-2-thioxo-thiazolidin-4-one have been studied and binding mode of this chemical class has been predicted. (C) 2012 Elsevier Masson SAS. All rights reserved.
A medicament having inhibitory activity against plasminogen activator inhibitor-1, which comprises as an active ingredient a compound represented by the following general formula (I) or a salt thereof:
wherein R
1
and R
2
represents an aromatic group which may be substituted, W represents a group selected from the following connecting group W-1:
(wherein a bond at the left end binds to the carbon atom and a bond at the right end binds to the nitrogen atom, X represents sulfur atom or NH, Y represents oxygen atom or sulfur atom,
R
3
represents a hydrocarbon group, hydroxy group, or carboxy group),
Z represents a single bond or a connecting group wherein a number of atoms in a main chain is 1 to 3.
On the basis of the structures of small-molecule hits targeting the HIV-1 gp41, N-(4-carboxy-3-hydi-oxy)plieiiyl-2,5-dimethylpyl-role (2, NB-2), and N-(3-carboxy-4-chloro)phenylpyrrole (A(1), NB-64), 42 N-carboxyphenylpyrrole derivatives in two categories (A and B series) were designed and synthesized. We found that I I compounds exhibited promising anti-HIV-1 activity at micromolar level and their antiviral activity was correlated with their inhibitory activity on gp41 six-helix bundle formation, suggesting that these compounds block HIV fusion and entry by disrupting gp41 core formation. The structure-activity relationship and molecular docking analysis revealed that the carboxyl group Could interact with either Arg579 or Lys574 to form salt bridges and two methyl groups on the pyrrole ring were favorable for interaction with the residues in gp41 pocket. The most active compound, N-(3-carboxy-4-hydroxy)phenyl-2,5-dimethylpyrrole (A(12)), partially occupied the deep hydrophobic pocket, suggesting that enlarging the molecular size of A(12) could improve its binding affinity and anti-HIV-1 activity for further development as a small-molecule HIV fusion and entry inhibitor.
作者:Galyna P. Volynets、Volodymyr G. Bdzhola、Andriy G. Golub、Anatoliy R. Synyugin、Maksym A. Chekanov、Oleksandr P. Kukharenko、Sergiy M. Yarmoluk
DOI:10.1016/j.ejmech.2012.09.022
日期:2013.3
Increased activity of apoptosis signal-regulating kinase 1 (ASK1) is associated with a number of human disorders and the inhibitors of ASK1 may become important compounds for pharmaceutical application. Here we report novel ASK1 inhibitor scaffold, namely 5-(5-Phenyl-furan-2-ylmethylene)-2-thioxo-thiazolidin-4-one, that has been identified using virtual screening and biochemical tests. A series of derivatives has been synthesized and evaluated in vitro towards human protein kinase ASK1. It was revealed that the most active compounds 4-((5Z)-5-[5-(4-bromophenyl)-2-furyl]methylene}-4-oxo-2-thioxo-1,3-thiazolidin-3-yl)butanoic acid and 6-((5Z)-5-[5-(4-bromophenyl)-2-furyl]methylene}-4-oxo-2-thioxo-1,3-thiazolidin-3-yl)hexanoic acid inhibit ASK1 with IC50 of 0.2 mu M. Structure activity relationships of 33 derivatives of 5-(5-Phenyl-furan-2-ylmethylene)-2-thioxo-thiazolidin-4-one have been studied and binding mode of this chemical class has been predicted. (C) 2012 Elsevier Masson SAS. All rights reserved.
Synthesis, Biological Evaluation and Molecular Docking Studies of 5-Indolylmethylen-4-oxo-2-thioxothiazolidine Derivatives
作者:Volodymyr Horishny、Athina Geronikaki、Victor Kartsev、Vasyl Matiychuk、Anthi Petrou、Pavel Pogodin、Vladimir Poroikov、Theodora A. Papadopoulou、Ioannis S. Vizirianakis、Marina Kostic、Marija Ivanov、Marina Sokovic
DOI:10.3390/molecules27031068
日期:——
Compounds were synthesized using the classical organic chemistry methods. Prediction of biological activity spectra was carried out using PASS and PASS-based web applications. Pharmacophore modeling in LigandScout software was used for quantitative modeling of the antibacterial activity. Antimicrobial activity was evaluated using the microdilution method. AutoDock 4.2® software was used to elucidate probable