Abstract:
:In an effort to develop potent antiamoebic agents, we have synthesized chalcones (1-8), amino-5-substituted-(3-phenyl(2-pyrazolinyl))methane-1-thione derivatives (1a-8a) and 2-(5-substituted-3-phenyl-2-pyrazolinyl)-1,3-thiazolino[5,4-b]quinoxaline derivatives (1b-8b) and evaluated for their in vitro antiamoebic activity against HM1:IMSS strain of E. histolytica. All the compounds were characterized by electronic, IR, (1)H NMR and mass spectroscopic data. It was observed that the antiamoebic activity enhances on modifying the structure of chalcones to the pyrazolines and further to quinoxalines. The MTT assay was performed on human kidney epithelial cell line to check the cytotoxicity of the compounds and the results were compared with metronidazole. Compound 6b showed better antiamoebic activity and less toxicity than metronidazole.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Budakoti A,Bhat AR,Azam Adoi
10.1016/j.ejmech.2008.02.002subject
Has Abstractpub_date
2009-03-01 00:00:00pages
1317-25issue
3eissn
0223-5234issn
1768-3254pii
S0223-5234(08)00083-4journal_volume
44pub_type
杂志文章abstract::We describe here the design, synthesis and evaluation of in vivo local anaesthetic and antiarrhythmic activities of a series of N-alkylproline anilides. Most of the compounds demonstrated surface anaesthetic activity higher than that of lidocaine, ropivacaine and bupivacaine. We established that the local anaesthetic ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.02.003
更新日期:2013-05-01 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::Development of multidrug resistance (MDR) is one of the major causes leading to failure of cancer chemotherapy and radiotherapy. Monocarboxylate transporters (MCTs) MCT1 and MCT4, which are overexpressed in solid tumours, play a very important role in cancer cell survival and proliferation. These lactate transporters ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2020.112393
更新日期:2020-08-01 00:00:00
abstract::Current healthcare has significantly increased the average life expectancy, leading to a consequently greater incidence of age-related diseases, such as Alzheimer's disease. Following a multitarget approach, in this paper a series of polycyclic maleimide-based derivatives were designed and synthesized aimed at simulta...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.12.003
更新日期:2019-02-01 00:00:00
abstract::A series of novel isocoumarin derivatives were synthesized using Castro-Stephens cross-coupling. Moreover, novel 3,4-dihydroisocoumarin derivatives were obtained by catalytic hydrogenation of the corresponding isocoumarin precursors. The antiproliferative activity of all compounds was evaluated in vitro in different t...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2016.01.051
更新日期:2016-03-23 00:00:00
abstract::We describe the synthesis of analogs of XHE-III-74, a selective α4β3γ2 GABAAR ligand, shown to relax airway smooth muscle ex vivo and reduce airway hyperresponsiveness in a murine asthma model. To improve properties of this compound as an asthma therapeutic, a series of analogs with a deuterated methoxy group in place...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2016.11.045
更新日期:2017-01-27 00:00:00
abstract::Recent research exploring C8 substitution on the caffeine core identified 8-(2-phenylethyl)-1,3,7-trimethylxanthine as a non-selective adenosine receptor antagonist. To elaborate further, we included various C8 two-chain-length linkers to enhance adenosine receptor affinity. The results indicated that the unsubstitute...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2016.09.072
更新日期:2017-01-05 00:00:00
abstract::Three series of new trifluoromethyl substituted quinolone derivatives were synthesized (4a-f, 6a-f and 8a-f) from corresponding substituted anilines by multi-step reactions. The regioselective alkylation with different alkyl halides were carried out by approaching two different routes to get the final products in good...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.07.021
更新日期:2013-10-01 00:00:00
abstract::Sodium-dependent glucose co-transporter 2 (SGLT2) inhibitors are the current focus on the indication for the management of hyperglycemia in diabetes. Here, a novel series of C-linked indolylxyloside-based inhibitors of SGLT2 has been discovered. Structure-activity relationship studies revealed that substituents at the...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2012.06.053
更新日期:2012-09-01 00:00:00
abstract::A new efficient synthetic method to obtain prokineticin receptor antagonists based on the triazinedione scaffold is described. In this procedure the overall yield improves from 13% to about 54%, essentially for two factors: 1) N-(chlorocarbonyl) isocyanate is no more used, it represents the yield limiting step with an...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.05.030
更新日期:2014-06-23 00:00:00
abstract::A series of twenty two novel 1-cyclopropyl-6-fluoro-4-oxo-7-(4-substitutedpiperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid analogues were synthesized, characterized ((1)H NMR, (13)C NMR and LCMS) and screened for their in vitro anti-tubercular and antibacterial activity. Many of these compounds exhibited MIC val...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.10.055
更新日期:2014-01-01 00:00:00
abstract::Tuberculosis (TB) remains one of the most widespread and leading deadliest diseases, around one-third of the world's population harbor a latent infection by Mycobacterium tuberculosis (MTB), and 5-10% eventually develop an active TB. The emergency of MTB new virulent forms as well as the co-infection between MTB and H...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2018.01.080
更新日期:2018-02-25 00:00:00
abstract::A new series of 4-dimethylamine flavonoid derivatives were designed and synthesized as potential multifunctional anti-Alzheimer agents. The inhibition of cholinesterase activity, self-induced β-amyloid (Aβ) aggregation, and antioxidant activity by these derivatives was investigated. Most of the compounds exhibited pot...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2016.06.022
更新日期:2016-10-21 00:00:00
abstract::New promising unsymmetrical bisacridine derivatives (UAs), have been developed. Three groups including 36 compounds were synthesized by the condensation of 4-nitro or 4-methylacridinone, imidazoacridinone and triazoloacridinone derivatives with 1-nitroacridine compounds linked with an aminoalkyl chain. Cytotoxicity sc...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2020.112599
更新日期:2020-10-15 00:00:00
abstract::Epidermal growth factor receptor (EGFR) signaling pathway has been previously investigated for its significant role in the progression of different types of malignant tumors, where development of small molecules targeting EGFR is well known strategy for design of antitumor agents. Herein, we report the design and synt...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.06.024
更新日期:2018-07-15 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::GSK805 (1) is a potent RORγt inverse agonist, but a drawback of 1 is its low solubility, leading to a limited absorption in high doses. We have explored detailed structure-activity relationship on the amide linker, biaryl and arylsulfonyl moieties of 1 trying to improve solubility while maintaining RORγt activity. As ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2020.112536
更新日期:2020-09-15 00:00:00
abstract::A series of novel 2-amino-4-(4-methylpiperazin-1-yl)-1,3,5-triazine derivatives with different aryl substituents in the 6-position was designed, synthesized and evaluated for histamine H4 receptor (H4R) affinity in Sf9 cells expressing human H4R co-expressed with G-protein subunits. Triazine derivative 8 with a 6-(p-c...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.06.032
更新日期:2014-08-18 00:00:00
abstract::A library of indolyl-isoxazolidines (6-9) has been synthesized by regio- and stereoselective microwave irradiated 1,3-dipolar cycloadditions of C-(3-indolyl)-N-phenylnitrone (2') with variedly substituted dipolarophiles (3'-5') and screened for their anti-inflammatory activities through inhibition of pro-inflammatory ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.04.004
更新日期:2018-06-10 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::beta-Thujaplicin (hinokitiol or 2-hydroxy-4-isopropyl-2,4,6-cycloheptatrien-1-one), a natural tropolone, shows numerous activities while its synthetic analogues were found to exhibit anticancer and anti-ischemic activity. However, the ability of tropolone derivatives to protect neuronal cells from oxidative stress-ind...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2009.12.006
更新日期:2010-03-01 00:00:00
abstract::A new synthetic strategy for preparation of a wide range of 6-amino-2,4,5-trimethylpyridin-3-ols from pyridoxine·HCl via a six-step sequence has been developed. This approach features an introduction of various amino groups to C(6)-position of 3-benzyloxy-6-bromo-2,4,5-trimethylpyridine (13), a key intermediate, by a ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.03.045
更新日期:2014-05-06 00:00:00
abstract::A series of fused and non fused 1,2,4-triazoles with (2,4-dichlorophenoxy) moiety are prepared utilizing 3-((2,4-dichlorophenoxy)methyl)-4-amino-4H-1,2,4-triazole-5-thiol (3). The latter on reaction with carboxylic acids, ethylchloroformate, ethylcyanoacetate and sodium nitrite gives five membered fused triazole deriv...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2010.01.030
更新日期:2010-05-01 00:00:00
abstract::A series of novel 1, 2, 4-triazole/chalcone hybrids was prepared and identified with different spectroscopic techniques. The prepared compounds showed remarkable cytotoxic activity against different cancer cell lines. Compounds 24, 25, 27, 41 and 47 had shown the highest cytotoxicity among the tested compounds against...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.03.073
更新日期:2018-05-10 00:00:00
abstract::Bicyclic polyprenylated acylphloroglucinols (BPAPs), the principal bioactive benzophenone products isolated from plants of genera Garcinia and Hypericum, have attracted noticeable attention from the synthetic and biological communities due to their fascinating chemical structures and promising biological activities. H...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2020.112646
更新日期:2020-11-01 00:00:00
abstract::The synthesis of novel series of sulfamoylbenzamides as HBV capsid assembly effector is reported. The structure was divided into five parts which were independently modified as part of our lead optimization. All synthesized compounds were evaluated for their anti-HBV activity and toxicity in human hepatocytes, lymphoc...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2017.06.062
更新日期:2017-09-29 00:00:00
abstract::Malaria and cancer cause the death of millions of people every year. To combat these two diseases, it is important that new pharmaceutically active compounds have the ability to overcome multidrug resistance in cancer and Plasmodium falciparum strains. In search of effective anti-cancer and anti-malaria hybrids that p...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.01.043
更新日期:2014-03-21 00:00:00
abstract::Chalcones of indole 1-5 and their corresponding products; pyrazolines 6-10 and azo compounds 11-15 were synthesised and evaluated for their antiinflammatory activity against carrageenan induced oedema in albino rats at a dose of 50 mg x kg(-1) oral. The structure of compounds was confirmed by IR, (1)H-NMR and mass spe...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2003.11.002
更新日期:2004-05-01 00:00:00
abstract::Three new iridium (III) complexes [Ir (ppy)2 (ipbc)](PF6) (1), [Ir (bzq)2 (ipbc)](PF6) (2) and [Ir (piq)2 (ipbc)](PF6) (3) were designed and synthesized. All the complexes were tested for anticancer activity using 3-(4,5-dimethylthiazole)-2,5-diphenyltetraazolium bromide (MTT) method. The complexes show no cytotoxic a...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.04.013
更新日期:2018-05-10 00:00:00
abstract::Structural modification of the frontline antitubercular isonicotinic acid hydrazide (INH) provides lipophilic adaptations (3-46) of the drug in which the hydrazine moiety of the parent compound has been chemically blocked from the deactivating process of N(2)-acetylation by N-arylaminoacetyl transferases. As a class, ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2009.05.009
更新日期:2009-10-01 00:00:00