Synthesis and in vitro evaluation of new derivatives of 2-substituted-6-fluorobenzo[d]thiazoles as cholinesterase inhibitors
摘要:
A series of novel cholinesterase inhibitors based on 2-substituted 6-fluorobenzo[d]thiazole were synthesised and characterised by IR, H-1, C-13 and F-19 NMR spectroscopy and HRMS. Purity was checked by elemental analyses. The novel carbamates were tested for their ability to inhibit acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). The toxicity of the most active compounds was investigated using a standard in vitro test with HepG2 cells, and the ratio between biological activity and toxicity was determined. In addition, the toxicity of the most active compounds was evaluated against MCF7 cells using the xCELLigence system. Structure-activity relationships reflecting the dependence of cholinesterase inhibitors on the lipophilicity of the compounds as well as on the Taft polar and steric substituent constants are discussed. The specific orientation of the inhibitors in the binding site of acetylcholinesterase was determined using molecular docking of the most active compound. (C) 2013 Elsevier Ltd. All rights reserved.
Inhibitors of Tripeptidyl Peptidase II. 2. Generation of the First Novel Lead Inhibitor of Cholecystokinin-8-Inactivating Peptidase: A Strategy for the Design of Peptidase Inhibitors
作者:C. Robin Ganellin、Paul B. Bishop、Ramesh B. Bambal、Suzanne M. T. Chan、James K. Law、Benoit Marabout、Pratibha Mehta Luthra、Andrew N. J. Moore、Olivier Peschard、Pierre Bourgeat、Christiane Rose、Froylan Vargas、Jean-Charles Schwartz
DOI:10.1021/jm990226g
日期:2000.2.1
fluorimetric assay based on the hydrolysis of the artificial substrate Ala-Ala-Phe-amidomethylcoumarin. A series of di- and tripeptides having various alkyl or aryl side chains was studied to determine the accessible volume for binding and to probe the potential for hydrophobic interactions. From this initial study the tripeptides Ile-Pro-Ile-OH (K(i) = 1 microM) and Ala-Pro-Ala-OH (K(i) = 3 microM) and dipeptide
Design and Synthesis of Novel Symmetric Fluorene-2,7-Diamine Derivatives as Potent Hepatitis C Virus Inhibitors
作者:Mai H. A. Mousa、Nermin S. Ahmed、Kai Schwedtmann、Efseveia Frakolaki、Niki Vassilaki、Grigoris Zoidis、Jan J. Weigand、Ashraf H. Abadi
DOI:10.3390/ph14040292
日期:——
HepatitisCvirus (HCV) is an international challenge. Since the discovery of NS5A direct-acting antivirals, researchers turned their attention to pursue novel NS5A inhibitors with optimized design and structure. Herein we explore highly potenthepatitisCvirus (HCV) NS5A inhibitors; the novel analogs share a common symmetrical prolinamide 2,7-diaminofluorene scaffold. Modification of the 2,7-diaminofluorene
Expanding the chemical space of anti-HCV NS5A inhibitors by stereochemical exchange and peptidomimetic approaches
作者:Triveena M. Ramsis、Shereen E. Abdel Karim、Niki Vassilaki、Efseveia Frakolaki、Ahmed A. M. Kamal、Grigoris Zoidis、Nermin S. Ahmed、Ashraf H. Abadi
DOI:10.1002/ardp.201800017
日期:2018.7
Here we report a series of potent anti‐HCV agents bearing a symmetrical benzidine l‐prolinamide backbone with different capping groups including alkyl/aryl carbamates of natural and unnatural valine and leucine amino acids. All compounds were investigated for their inhibitory activity in an HCV replicon assay on genotype 1b. The novel compounds share some chemical and clinical attributes of commercially
[EN] SPHINGOSINE KINASE INHIBITOR PRODRUGS<br/>[FR] PRO-MÉDICAMENTS INHIBITEURS DE LA SPHINGOSINE KINASE
申请人:APOGEE BIOTECHNOLOGY CORP
公开号:WO2010105183A1
公开(公告)日:2010-09-16
The invention relates to prodrugs of hydroxyl-substituted adamantane compounds, pharmaceutical compositions thereof, and methods for inhibiting sphingosine kinase and for treating or preventing hyperproliferative disease, inflammatory disease, or angiogenic disease
Administration of TLR7 ligands and prodrugs thereof for treatment of infection by hepatitis C virus
申请人:Averett R. Devron
公开号:US20050054590A1
公开(公告)日:2005-03-10
This invention relates to methods for treating or preventing hepatitis C virus infections in mammals using Toll-Like Receptor (TLR)7 ligands and prodrugs thereof. More particularly, this invention relates to methods of orally administering a therapeutically effective amount of one or more prodrugs of TLR7 ligands for the treatment or prevention of hepatitis C viral infection. Oral administration of these TLR7 immunomodulating ligands and prodrugs thereof to a mammal provides therapeutically effective amounts and reduced undesirable side effects.