Abstract:
:Tuberculosis (TB) remains among the world's great public health challenges. Worldwide resurgence of TB is due to two major problems: the AIDS epidemic, which started in the mid-1980s, and the outbreak of multidrug resistant (MDR) TB. Thus, there is an urgent need for anti-TB drugs with enhanced activity against MDR strains. In recent years, Schiff bases of 1H-indole-2,3-diones are reported to exhibit anti-TB activity. On the other hand, several quinolone antibacterial agents have been examined as inhibitors of TB, as well as other mycobacterial infections. Accordingly, the current work involved design and synthesis of Schiff bases of nalidixic acid carbohydrazide and isatin derivatives (5,6a-f and 7,8a-c). Structures of the synthesized derivatives were confirmed on the bases of spectral methods of analyses. Anti-TB activity of the synthesized derivatives was investigated against four Mycobacterium strains: Mycobacterium intercellulari, Mycobacterium xenopi, Mycobacterium cheleneo and Mycobacterium smegmatis. Modest anti-TB activity was observed within the investigated compounds, however, compound 5f revealed potent anti-TB activity with MIC 0.625 microg/ml, which is 20 times greater than the reference drug isoniazid, INH, (MIC = 12.5 microg/ml). A hypothetical pharmacophore model was built using Molecular Operating Environment (MOE) program and 10 compounds structurally related to the synthesized ones with reported anti-TB activity. The Pharmacophoric model built revealed the necessity of the following pharmacophoric features for anti-TB activity: aromatic center, hydrogen bond acceptor/metal ligator center, hydrogen bond donor center and aromatic center/hydrophobic area. Theses features were consistent with the found anti-TB activity of the tested compounds.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Aboul-Fadl T,Bin-Jubair FA,Aboul-Wafa Odoi
10.1016/j.ejmech.2010.07.020subject
Has Abstractpub_date
2010-10-01 00:00:00pages
4578-86issue
10eissn
0223-5234issn
1768-3254pii
S0223-5234(10)00500-3journal_volume
45pub_type
杂志文章abstract::The synthesis is described of several aminoalkyl derivatives of coumarin, obtained in good yields under microwave or high-intensity ultrasound irradiation. These compounds proved uniformly active as inhibitors of squalene-hopene cyclase (SHC) from Alicyclobacillus acidocaldarius. Their design stemmed from our recent f...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2004.06.010
更新日期:2004-11-01 00:00:00
abstract::A wide variety of small molecules with diverse molecular scaffolds inhibit microtubule formation. In this article we report a one-pot procedure for the preparation of a novel 2-(N-pyrrolidinyl)-4-amino-5-(3',4',5'-trimethoxybenzoyl)thiazole in which the size of the substituent at the C-2 position of the thiazole ring ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2011.10.013
更新日期:2011-12-01 00:00:00
abstract::A series of 2'-aryl/benzyl-2-aryl-4-methyl-4',5-bithiazolyl derivatives, 25-64 were synthesized and evaluated for inhibitory activity against Mycobacterium smegmatis MC(2) 155 strain and antimicrobial activities against four pathogenic bacteria Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Proteus vul...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2015.03.016
更新日期:2015-04-13 00:00:00
abstract::Covalent drugs play corresponding bioactivities by forming covalent bonds with the target, which possess many significant pharmacological advantages including high potency, ligand efficiency, and long-lasting effects. However, development of covalent inhibitors is a challenge due to their presumed indiscriminate react...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2020.112896
更新日期:2021-01-01 00:00:00
abstract::By modifying the chemical structure of anti-orthopoxvirus compound ST-246, we designed and synthesized a series of tricyclononene carboxamide derivatives and tested their anti-HIV-1 activity and cytotoxicity. We found that benzoimidazol-containing compound 7g was highly effective in inhibiting HIV-1 R5 infection with ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2010.05.070
更新日期:2010-09-01 00:00:00
abstract::The hydroxyl group in ring A of pentacyclic triterpene is essential for antibacterial activity. Pentacyclic triterpenes bearing three hydroxyl groups in ring A were mainly found in plants and displayed significant antibacterial activity. However, no study reported how to obtain this type of compounds by chemical modif...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2015.01.015
更新日期:2015-05-05 00:00:00
abstract::Spiro derivatives of oxindole and isoxazole-5-one were synthesized by using Michael addition reaction, highlighting the regioselective approach towards the synthesis of Michael diadduct followed by condensation of Michael diadduct. The spiro compound 4 showed antitubercular activity against Mycobacterium tuberculosis ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2005.06.004
更新日期:2005-11-01 00:00:00
abstract::A series of novel thiazolidin-4-ones bearing a lipophilic adamantyl substituent at position 2 or 3 were synthesized. A majority of them showed a modest anti-HIV-1 activity, whereas 2-adamantan-1-yl-3-(4,6-dimethylpyrimidin-2-yl)-thiazolidin-4-one (8) was endowed with a remarkable antiviral potency (EC(50)=0.67 microM)...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2008.02.039
更新日期:2009-01-01 00:00:00
abstract::Nucleoside hydrolase (NH) is a key enzyme in the purine salvage pathway. The purine specificity of the IAG-NH from Trypanosoma vivax is at least in part due to cation-pi-stacking interactions. Guanidinium ions can be involved in cation-pi-stacking interactions, therefore a series of guanidino-alkyl-ribitol derivatives...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2007.03.027
更新日期:2008-02-01 00:00:00
abstract:UNLABELLED:The epidermal growth factor receptor (EGFR) is over-expressed in a variety of human cancers, including in hormone-refractory prostate carcinomas, in which the EGFR has been associated with advanced disease stage, resistance to standard treatment and poor prognosis. Therefore, the EGFR is considered to be a p...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2010.05.027
更新日期:2010-09-01 00:00:00
abstract::Unique derivatives of androstene and estrane series containing N-sulfonylimidate pendants were prepared from 17α-ethynyl steroids via Cu-catalyzed azide-alkyne cycloaddition to tosyl azide in the presence of alcohols. The synthesized compounds were screened for cytotoxicity against human breast cancer cell lines and E...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.06.048
更新日期:2019-10-01 00:00:00
abstract::Androgen receptor (AR) plays important roles in the development of prostate cancer (PCa), and therefore it has been regarded as the most important therapeutic target for both hormone-sensitive prostate cancer (HSPC) and advanced PCa. In this study, a novel hit (C18) with IC50 of 2.4 μM against AR transcriptional activ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2020.112156
更新日期:2020-04-15 00:00:00
abstract::In search of a next generation molecule to the novel wake promoting agent modafinil, a series of diphenyl ether derived wakefulness enhancing agents (in rat) was developed. From this work, racemic compound 16 was separated into its chiral enantiomers to profile them individually. ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2012.05.038
更新日期:2012-08-01 00:00:00
abstract::A practicable method of introducing a side chain to the C-4' position of 5-O-desosamine in the 14-membered ketolides was developed. And using this method, a series of novel modified 5-O-mycaminose ketolides were synthesized. These ketolides containing 5-O-4'-carbamate mycaminose were evaluated for their in vitro antib...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.08.023
更新日期:2013-11-01 00:00:00
abstract::Prostate cancer is one of the main causes of male cancer-related deaths worldwide and the suppression of androgen receptor signalling is established as an effective strategy for the treatment. A series of galeterone analogues including several steroid-fused azacycles, as well as 17-(benzimidazol-1-ylimino), 16α-(benzi...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.06.040
更新日期:2019-10-01 00:00:00
abstract::Radiolabeled heterobivalent peptidic ligands (HBPLs), being able to address different receptors, are highly interesting tumor imaging agents as they can offer multiple advantages over monovalent peptide receptor ligands. However, few examples of radiolabeled HBPLs have been described so far. One promising approach is ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.05.047
更新日期:2018-07-15 00:00:00
abstract::A new series of chiral 1,3,4-thiadiazoles derivatives possessing gamma-substituted butenolide moiety were synthesized and evaluated for in vitro anticancer properties. All the compounds showed good anticancer activities against Hela cell lines. Of all the studied compounds, compound 9e exhibited the best inhibitory ac...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2009.03.023
更新日期:2009-08-01 00:00:00
abstract::Six new type binuclear platinum(II) complexes (a-f) have been synthesized and characterized by elemental analysis, conductivity, thermal analysis, IR, UV, (1)H NMR and mass spectra techniques. The cytotoxicity of the complexes was tested by MTT and SRB assays. The cell cycle analysis and the levels of total platinum b...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2009.06.017
更新日期:2009-11-01 00:00:00
abstract::Series of twelve chalcone and propafenone derivatives has been synthesized and evaluated for anticancer activities against HeLa, Fem-X, PC-3, MCF-7, LS174 and K562 cell lines. The 2D-QSAR and 3D-QSAR studies were performed for all compounds with cytotoxic activities against each cancer cell line. Partial least squares...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.02.013
更新日期:2013-05-01 00:00:00
abstract::The title compounds (8) were synthesized through the cyclocondensation of the corresponding N-substituted 4-amino-2-chloro-1,8-naphthyridine-3-carboxamides (4) with the proper hydrazides, in order to evaluate their anti-inflammatory and anti-aggressive properties. Several compounds 8 exhibited high anti-inflammatory a...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0223-5234(00)01175-2
更新日期:2000-11-01 00:00:00
abstract::Chlorophyll a exhibits excellent photosensitive activity in photosynthesis. The unstability limited its application as photoensitizer drug in photodynamic therapy. Here a series of novel chlorophyll a degradation products pyropheophorbide-a derivatives were synthesized and evaluated for lung cancer in PDT. These compo...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.111959
更新日期:2020-02-01 00:00:00
abstract::2-Styrylchromones, which are relatively scarce in nature, have been reported to possess potent cytotoxicities on KB cell line. Lavendustin A, a metabolite of Streptomyces griseolavendus, has been shown to inhibit a growth of A431 cell line. Accordingly, a series of compounds 3a-g having structural features of styrylch...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2006.04.008
更新日期:2006-08-01 00:00:00
abstract::CB2 receptor belongs to the large family of G-protein coupled receptors (GPCRs) controlling a wide variety of signal transduction. The recent crystallographic determination of human β2 adrenoreceptor and its high sequence similarity with human CB2 receptor (hCB2) prompted us to compute a theoretical model of hCB2 base...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2011.07.023
更新日期:2011-09-01 00:00:00
abstract::New styryl sulfone compounds have been synthesized and evaluated for their anti-proliferative activity. Among the compounds synthesized, one compound (7k) has shown 51% tumor growth inhibition in mice implanted with HT-29 human carcinoma at 400 mg kg(-1) orally. ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0223-5234(03)00144-2
更新日期:2003-09-01 00:00:00
abstract::9-cis-Retinal thiosemicarbazone and its Co(III), Ni(II) and Cu(II) complexes are synthesized and characterized. Central Co(III) atom is in an octahedral environment while Ni(II) and Cu(II) atoms are in a square planar environment. DNA binding constants and spectroscopic data show an intercalative behavior for the nick...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2006.12.019
更新日期:2007-05-01 00:00:00
abstract::Polymeric bile acid sequestrants (BAS) have recently attracted much attention as lipid-lowering agents. These non-absorbable materials specifically bind bile acids (BAs) in the intestine, preventing bile acid (BA) reabsorption into the blood through enterohepatic circulation. Therefore, it is important to understand t...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2017.12.015
更新日期:2018-01-20 00:00:00
abstract::Two thiazolidinedione scaffolds different in the position of the thiazolidinedione ring in the molecule were tested for in vitro cytotoxic activity in a panel of human cancer cell lines namely, prostate cancer cells PC-3, breast carcinoma cells MDA-MB-231, and fibrosarcoma cells HT-1080. Some of the target compounds o...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2017.03.052
更新日期:2017-06-16 00:00:00
abstract::Brain amyloid deposits have been identified as the main neuropathological hallmarks of Alzheimer's diseases (AD) and intensive efforts have been devoted to develop aggregation inhibitors preventing the formation of toxic oligomeric Aβ for therapeutic. In addition, evidence indicates that the formation and accumulation...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.111585
更新日期:2019-11-01 00:00:00
abstract::We describe a novel class of β-carboline alkaloid-peptide conjugates that possess both free radical scavenging and thrombolytic activity. These conjugates demonstrate therapeutic efficacy in a rat arterial thrombosis assay, as well as free radical scavenging capacity as evaluated in a PC12 cell survival assay. Our res...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2011.01.021
更新日期:2011-05-01 00:00:00
abstract::Immunotherapy has been increasingly utilized for the treatment of cancer. Currently available cancer immunotherapies mainly involve the use of antibodies, which have advantages in terms of pharmacodynamics such as efficacy and specificity, however, they exhibit disadvantages in regard to the pharmacokinetics including...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2018.08.028
更新日期:2018-09-05 00:00:00