Abstract:
:Trichomoniasis is the most prevalent, non-viral sexually transmitted diseases (STD) caused by amitochondriate protozoan Trichomonas vaginalis. Increased resistance of T. vaginalis to the marketed drug Metronidazole necessitates the development of newer chemical entities. A library of sixty 2-methyl-4/5-nitroimidazole derivatives was synthesized via nucleophilic ring opening reaction of epoxide and the efficacies against drug-susceptible and -resistant Trichomonas vaginalis were evaluated. All the molecules except two were found to be active against both susceptible and resistant strains with MICs ranging 8.55-336.70 μM and 28.80-1445.08 μM, respectively. Most of the compounds were remarkably more effective than the standard Metronidazole. This study analyzes the in vitro and in vivo activities of the new 5-nitroimidazoles, which were found to be safe against human cervical HeLa cells with good selectivity index. The exploration of SAR by the synthesis of four different prototypes and 3D-QSAR study has shown the importance of prototype 1 over other prototypes.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Mandalapu D,Kushwaha B,Gupta S,Singh N,Shukla M,Kumar J,Tanpula DK,Sankhwar SN,Maikhuri JP,Siddiqi MI,Lal J,Gupta G,Sharma VLdoi
10.1016/j.ejmech.2016.09.006subject
Has Abstractpub_date
2016-11-29 00:00:00pages
820-839eissn
0223-5234issn
1768-3254pii
S0223-5234(16)30734-6journal_volume
124pub_type
杂志文章abstract::Novel heterocyclic-fused pyrimidines viz pyrrolo[1,2-c]pyrimidines 4-8, pyrimido[5,4-e]pyrrolo[1,2-c]pyrimidines 9-14, pyrimido[4',5':4,5]pyrimido[1,6-a]azepines 16-18, pyrrolo[1',2':1,6]pyrimido[4,5-d][1,3]thiazines 19a,b and 1,3-thiazino[4',5':4,5]pyrimido[1,6-a]-azepine 19c were designed and synthesized as potentia...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.08.042
更新日期:2013-11-01 00:00:00
abstract::NQO1 is a dimeric flavoprotein which intimately associated with cancer and overexpressed in the cytosol of numerous human tumor cells. Given that the cellular environment is quite dynamic and versatile, further investigation of the function of NQO1 depends on tools for specific detection of it. Currently, several acti...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2016.10.062
更新日期:2017-02-15 00:00:00
abstract::The current epidemic of antibiotic resistant bacterial infections has fueled the demand for novel antibiotics exhibiting both antibacterial efficacy and anti-drug resistance. This need has not been fully satisfied by the conventional "one target-one molecule" approach. Consequently, there has been rising interest in t...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2020.112931
更新日期:2021-01-01 00:00:00
abstract::A series of new beta-carboline derivatives 3-14 bearing guanidinium group or amino group-terminated side chain targeting the TAR RNA were designed and synthesized. Molecular modeling studies indicated that the minimal interaction energy was obtained for compound 11, which contained the optimal linker of three methylen...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2005.01.012
更新日期:2005-09-01 00:00:00
abstract::Some aryl substituted terpenyl pyrimidines 4 (a-p) have been synthesized using novel synthetic methods. The compounds were screened for in vitro antileishmanial activity against promastigotes. Compounds 4c, 4i and 4l showed IC(50) values as 35, 35 and 25 microg ml(-1). ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2006.02.004
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abstract::The synthesis and anti-tuberculosis activity for three series of 2,4-disubstituted quinolines is reported. The synthesized compounds were evaluated for activity against M. tuberculosis H37Rv strain; most promising compounds from the series exhibited MIC99 values ranged between 3.125 and 6.25 μg/mL. None of the compoun...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2015.02.034
更新日期:2015-03-26 00:00:00
abstract::Three new series of quinoline-4-yl-1,2,3-triazoles carrying amides, sulphonamides and amidopiperazines were synthesized through multi-step reactions. The required intermediate, [1-(6-methoxy-2-methylquinolin-4-yl)-1H-1,2,3-triazol-4-yl]methanol (2) was prepared by treating 4-azido-6-methoxy-2-methylquinoline (1) with ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2011.03.039
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abstract::With an intention to synergize the anti-bacterial activity of chalcones and rhodanine-3-acetic acid, several hybrid compounds possessing chalcone and rhodanine-3-acetic acid moieties were synthesized and tested for their anti-bacterial activity. Some compounds presented great anti-microbial activities against Gram-pos...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2010.09.031
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abstract::A series of 7H-pyrrolo[2,3-d]pyrimidine derivatives possessing a dimethylphosphine oxide moiety were designed, synthesized and evaluated as novel Focal adhesion kinase (FAK) inhibitors. Most compounds potently suppressed the enzymatic activities of FAK, with IC50 values in the 10-8-10-9 M range, and potently inhibited...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.111716
更新日期:2019-12-01 00:00:00
abstract::Antagonists addressing selectively NMDA receptors containing the GluN2B subunit are of particular interest for the treatment of various neurological disorders including neurodegenerative diseases. With the aim to bioisosterically replace the metabolically labile phenol of 7-amino-6,7,8,9-tetrahydro-5H-benzo[7]annulen-...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
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abstract::Alzheimer's disease (AD) is associated with multifactorial neuropathological conditions, which include cholinergic deficit, amyloid-beta plaques formation, loss of neuronal plasticity and neuronal death. Treating such multifactorial conditions with a single target directed approach is considered to be inadequate. Acco...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.111613
更新日期:2019-11-15 00:00:00
abstract::Several Mannich ketones of 2-arylmethylenecycloalkanones were synthesised using the classical acid-catalysed Mannich reaction. Antibacterial activity of these new water-soluble compounds was reported against Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Staphylococcus saprophyticus, Micrococcus lute...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0223-5234(01)01264-8
更新日期:2001-09-01 00:00:00
abstract::A series of N-substituted aminomethylphenol derivatives was synthesized by reductive amination. To study the inhibitory potency of the target compounds at the murine GABA transporters (mGAT1-mGAT4), a [(3)H]GABA uptake test system in a 96-well format based on HEK cells stably expressing mGAT1-mGAT4 was established and...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2008.01.005
更新日期:2008-11-01 00:00:00
abstract::Novel imidazoline benzimidazole derivatives containing diversely substituted phenoxy moieties were synthesized with the aim of evaluating their antitrypanosomal activity, DNA/RNA binding affinity and in vitro ADME properties. The presence of the diethylaminoethyl subunit in 18a-18c led to enhanced antitrypanosomal pot...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2020.112802
更新日期:2020-12-01 00:00:00
abstract::The emergence of drug resistance has created unmet medical need for the development of new classes of antibiotics. Innovation of new antibacterial agents with new mode of action remains a high priority universally. Triazines are six-membered, nitrogen-containing heterocyclic scaffold with a wide range of pharmaceutica...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2019.111804
更新日期:2020-01-01 00:00:00
abstract::Eicosanoids like leukotrienes and prostaglandins play a considerable role in inflammation. Produced within the arachidonic acid (AA) cascade, these lipid mediators are involved in the pathogenesis of pain as well as acute and chronic inflammatory diseases like rheumatoid arthritis and asthma. With regard to the lipid ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.07.025
更新日期:2014-09-12 00:00:00
abstract::Nur77, an orphan nuclear receptor, is a member of the nuclear receptor superfamily. Nur77 plays important roles in various biological processes. Previously we reported that BI1071(DIM-C-pPhCF3+MeSO3-), an oxidized form and methanesulfonate salt of (4-CF3-Ph-C-DIM), can modulate Nur77's non-genomic apoptotic pathway th...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2020.113020
更新日期:2021-02-05 00:00:00
abstract::A new series of 2-substituted imino-3-substituted-5- heteroarylidene-1,3-thiazolidine-4-ones as the potent bidentate PTP1B inhibitors were designed and synthesized in this paper. All of the new compounds were characterized and identified by spectra analysis. The biological screening test against PTP1B showed that some...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2016.05.060
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abstract::Two groups of coumarin-pyrazoline hybrids were synthesized. The target compounds were obtained by cyclization of the coumarin chalcones with various substituted hydrazines to produce the corresponding pyrazolines through 1,4-addition on α,β-unsaturated carbonyl system. Selected compounds were investigated for their an...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2012.12.004
更新日期:2013-02-01 00:00:00
abstract::Four (99m)Tc-labeled fatty acid analogs, 1b, 2b, 3b, 4b were synthesized by a double ligand transfer reaction and theirs potential were investigated. The radiochemical yield of the radiotracers was from 11.7% to 30.3% (no decay corrected). Those compounds were found to be chemically stable when incubated in SD rat ser...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.11.015
更新日期:2014-01-24 00:00:00
abstract::In an attempt to increase the affinity of our antipsychotic lead compound LASSBio-579 (1-((1-(4-chlorophenyl)-1H-pyrazol-4-yl)methyl)-4-phenylpiperazine; (2)) for the 5-HT(2A) receptor, we synthesized five new N-phenylpiperazine derivatives using a linear synthetic route and the homologation strategy. The binding prof...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.05.027
更新日期:2013-08-01 00:00:00
abstract::Filamenting temperature-sensitive mutant (FtsZ) is a novel target for the treatment of tuberculosis. A series of (R)-2-(4'-chlorophenyl)-3-(4'-nitrophenyl)-1,2,3,5-tetrahydrobenzo[4,5] imidazo[1,2-c]pyrimidin-4-ol derivatives were designed and docked on the FtsZ protein crystal structure (PDB Id: 1RLU, resolution 2.08...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.06.019
更新日期:2014-08-18 00:00:00
abstract::Synthesis of 12 new 3-aryl/heteroaryl-5,7-dimethyl-1,2,4-triazolo[4,3-c]pyrimidines (3a-l) has been accomplished by the oxidation of pyrimidinylhydrazones (2a-l) of various aryl/heteroaryl aldehydes using 1.1equiv. of iodobenzene diacetate (IBD) in dichloromethane. All the compounds 3a-l tested in vitro for their anti...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2008.06.004
更新日期:2009-05-01 00:00:00
abstract::In continuation of our investigation on the bithiophene structure as potential β-amyloid probes, a series of (E)-5-styryl-2,2'-bithiophene (SBTP) derivatives was designed and synthesized. In vitro binding showed that all of them displayed high binding affinities to Aβ(1-42) aggregates (K(i)=0.10-41.05nM). Moreover, tw...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2011.04.015
更新日期:2011-07-01 00:00:00
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 st...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2010.07.020
更新日期:2010-10-01 00:00:00
abstract::The pure enantiomers of the N-(2-, 3-, and 4-(2-aminocyclopropyl)phenyl)benzamides hydrochlorides 11a-j were prepared and tested against LSD1 and MAO enzymes. The evaluation of the regioisomers 11a-j highlighted a net increase of the anti-LSD1 potency by shifting the benzamide moiety from ortho to meta and mainly to p...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2015.02.060
更新日期:2015-04-13 00:00:00
abstract::During a screening for compounds that could act against Mycobacterium tuberculosis, a series of new cellular antiproliferative agents was identified. The most cytotoxic molecules were evaluated against a panel of human cell lines derived from hematological and solid human tumors. In particular, (E)-2-(1H-benzo[d] [1,2...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2011.06.018
更新日期:2011-09-01 00:00:00
abstract::We have synthetised a series of oxidised apomorphine derivatives (orto and para quinones 2-5), in order to analyse their vascular activity. We have performed radioligand binding assays on rat cortical membranes and functional studies on rat aortic rings. Instead the relaxant activity exhibited by (R)-apomorphine, o-qu...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0223-5234(03)00057-6
更新日期:2003-05-01 00:00:00
abstract::This paper describes the synthesis and characterization of N5-(hetero)arylalkyl-substituted-thiazolo [5,4-d]pyrimidine-5,7-diamine derivatives (4-19) as novel human (h) A2A adenosine receptor (AR) inverse agonists. Competition binding and cyclic AMP assays indicate that the examined compounds behave as hA2A AR inverse...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.06.020
更新日期:2018-07-15 00:00:00
abstract::Despite a significant work on thiadiazoles, continuous efforts are still being made to identify novel heterocyclic compounds with potent biological activities. This review may help the medicinal chemists to develop new leads possessing 1,3,4-thiadiazole nucleus with higher efficacy and reduced side effects. This revie...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2014.12.035
更新日期:2015-03-06 00:00:00