Abstract:
:A new series of N-substituted 2-pyrazolines 9a-f, 10a-f, 11a-f, 12a-f and 13a-f were obtained from the cyclocondensation reaction of [(7-chloroquinolin-4-yl)amino]chalcones 8a-f with hydrazine hydrate and its derivatives. Fourteen of the synthesized compounds including the starting chalcones were selected by US National Cancer Institute (NCI) for testing their anticancer activity against 60 different human cancer cell lines, with the most important GI50 values ranging from 0.28 to 11.7 μM (0.13-6.05 μg/mL) and LC50 values ranging from 2.6 to > 100 μM (1.2 to > 51.7 μg/mL), for chalcones 8a,d and pyrazolines 10c,d. All compounds were assessed for antibacterial activity against wild type and multidrug resistant gram negative and gram positive bacteria, with MIC values ranging from 31.25 to 500 μg/mL. Additionally, the novel compounds were tested for antifungal and antiparasitic properties. Although these compounds showed mild activity against Candida albicans, chalcones 8a and 8e showed high activity against Cryptococcus neoformans with MIC50 = 7.8 μg/mL. For anti-Plasmodium falciparum activity the 2-pyrazoline 11b was the most active with EC50 = 5.54 μg/mL. Regarding the activity against Trypanosoma cruzi, compound 10a was highly active with EC50 = 0.70 μg/mL. Chalcone 8a had good activity against Leishmania panamensis amastigotes with EC50 = 0.79 μg/mL.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Ramírez-Prada J,Robledo SM,Vélez ID,Crespo MDP,Quiroga J,Abonia R,Montoya A,Svetaz L,Zacchino S,Insuasty Bdoi
10.1016/j.ejmech.2017.03.016subject
Has Abstractpub_date
2017-05-05 00:00:00pages
237-254eissn
0223-5234issn
1768-3254pii
S0223-5234(17)30173-3journal_volume
131pub_type
杂志文章abstract::Heme oxygenase (HO) is a cytoprotective enzyme that can be overexpressed in some pathological conditions, including certain cancers. In this work, novel imidazole derivatives were designed and synthesized as inhibitors of heme oxygenase-1 (HO-1) and heme oxygenase-2 (HO-2). In these compounds the imidazole ring, cruci...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2015.04.003
更新日期:2015-01-01 00:00:00
abstract::Interferon (INF) is an effective drug in treating several human diseases. Ge-132, which is the most common and well-studied organic germanium, has been reported to induce INF-gamma and has undergone clinical trials with promising preclinical results. However, it has been reported that long-term ingestion or high doses...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2009.12.069
更新日期:2010-04-01 00:00:00
abstract::The target phosphoramidates 5a-e were prepared in one step from 3-hydroxypropyl derivatives 3a-e of nonsteroidal anti-inflammatory drugs (fenoprofen, ketoprofen, ibuprofen, indomethacin, diclofenac). The products 3a-e and 5a-e were evaluated for their cytostatic and antiviral activity against malignant tumour cell lin...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2008.03.037
更新日期:2009-01-01 00:00:00
abstract::The endocannabinoid system (ECS) represents one of the major neuromodulatory systems involved in different physiological and pathological processes. Multi-target compounds exert their activities by acting via multiple mechanisms of action and represent a promising pharmacological modulation of the ECS. In this work we...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.05.019
更新日期:2018-06-25 00:00:00
abstract::Preparation, characterization and drug release behavior of loaded polybutyl adipate (PBA) nanocapsules with penicillin-G are described here. The nanocapsules were produced using a double emulsion solvent evaporation technique, using dichloromethane as an organic solvent and Tween and Span as surfactants. In this proce...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2008.09.045
更新日期:2009-06-01 00:00:00
abstract::This work deals with the synthesis and evaluation of new compounds designed by combination of 1,4-naphthoquinone and ferrocene fragments in a 3-ferrocenylmethyl-2-hydroxy-1,4-naphthoquinone arrangement. A practical coupling reaction between 2-hydroxy-1,4-naphthoquinone and ferrocenemethanol derivatives has been develo...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.10.011
更新日期:2013-01-01 00:00:00
abstract::The aim of the present study was to reduce 5-FU side effects by targeted nanostructured lipid carriers (NLCs) to LDL receptors that are over expressed in colorectal carcinoma and also use of a new synthesized conjugate of retinoic acid as a cytotoxic agent. Fatty acyl amide derivative of retinoic acid was synthesized ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2012.05.024
更新日期:2012-08-01 00:00:00
abstract::In this study, we report the synthesis of novel oxazolidinone derivatives derived from linezolid 3 having p-methoxyphenyl group at C-4 position. In vitro evaluation for their anticancer activity toward cultured A549, DU145, HELA, and MCF7 were carried out. The series of compounds prepared displayed wide range of cytot...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.04.062
更新日期:2014-06-10 00:00:00
abstract::Disubstituted 1,3,4-oxadaiazoles (4a-z, 4a'-f'), Mannich bases (6a-p) and S-alkylated derivatives (7a-t) have been synthesized from 2-(aryloxymethyl)benzoic acids (1a-d) through a multi-step reaction sequence. The structures of new compounds were established on the basis of their elemental analyses, IR, (1)H NMR, (13)...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2010.06.027
更新日期:2010-11-01 00:00:00
abstract::Twenty four compounds with diversified 3-aryl acrylic amide side chains of the simplified saframycin-ecteinascidin pentacyclic skeleton were synthesized via a 14-step stereospecific route starting from L-dopa. The cytotoxicities of these compounds were tested against eight human tumor cell lines including HCT-8, BEL-7...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.01.033
更新日期:2013-04-01 00:00:00
abstract::The ruthenium DMSO complexes cis-Ru(II)C12(DMSO)4 and [(DMSO)2H][trans-Ru(III)Cl4(DMSO)2] reacted with 4-(3'-chloro-4'-fluoroanilino)-6-(2-(2-aminoethyl)aminoethoxy)-7-methoxyquinazoline (L1), 4-(3'-chloro-4'-fluoroanilino)-6-(2-(1H-imidazol-1-yl)ethoxy)-7-methoxy quinazoline (L2), N-(benzo[d]imidazol-4-yl)-6,7-dimeth...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.02.062
更新日期:2014-04-22 00:00:00
abstract::In searching for efficient and selective antitumour drugs, a new family of carbosilane metallodendrimers functionalized with [Ru(η5-C5H5)(PTA)Cl] (PTA = 1,3,5-triaza-7-phosphatricyclo-[3.3.1.1] decane) is reported. Experiments of the biophysical characterization showed an ability to interact with biological membranes,...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2020.112414
更新日期:2020-08-01 00:00:00
abstract::A series of novel γ-(triazolyl ethylidene)butenolides (4-23) were prepared from commercially available l-ascorbic acid in good yields. These butenolides on reaction with ethanolic ammonia/amines led to formation of respective 5-hydroxy pyrrolinones (24-33). The two of these pyrrolinones on dehydration with p-toluenesu...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2014.05.042
更新日期:2014-07-23 00:00:00
abstract::The use of nitroreductases (NTR) that catalyze the reduction of nitro compounds by using NAD(P)H in GDEPT (Gene-directed enzyme prodrug therapy) studies which minimize toxicity at healthy cells and increases concentration of drugs at cancer cells is remarkable. Discovery of new prodrug/NTR combinations is necessary to...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.03.035
更新日期:2019-06-01 00:00:00
abstract::The benzoxazole heterocycle is often found in ligands targeting a plethora of receptors and enzymes. By analysis of published X-ray structures, this review aims at highlighting key interactions which the benzoxazole may engage in with its host protein. Furthermore, bioavailability, metabolism and the use of benzoxazol...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.ejmech.2014.11.064
更新日期:2015-06-05 00:00:00
abstract::A number of derivatives of isoxazolo[4,5-d]pyrimidine were prepared with structures similar to that of purine. Condensation of the hydrazide of 4-amino-5-benzoylisoxazolo-3-carboxylic acid 2 with ethyloxalyl chloride followed by cyclization gave 3-oxdiazolo-[1,3,4]-4-amino-5-benzoylisoxazole 7 which, upon cyclization ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2008.01.035
更新日期:2008-11-01 00:00:00
abstract::Some new substituted thienopyrimidine derivatives comprising thioxo, thioalkyl and pyrazolyl derivatives as well as fused thienotriazolopyrimidine and thienopyrimidinotriazine ring systems were prepared from 3-benzyl-2-hydrazino-5-methyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxamide 4. The designed compounds ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2012.07.007
更新日期:2012-09-01 00:00:00
abstract::We report a convenient synthesis of carbazole-1,4-quinone alkaloid koeniginequinones A and B using a tandem ring-closing metathesis with the dehydrogenation reaction sequence under an O2 atmosphere as an important step. Using this method, carbazole-1,4-quinones substituted at the 5-, 6-, 7-, and/or 8-positions have be...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2016.05.065
更新日期:2016-10-04 00:00:00
abstract::The synthesis of some novel imidazole-based dicationic sulfonophanes incorporating various spacer units is described. All the sulphonophanes exhibit good antibacterial and antifungal activity against five bacterial strains Bacillus subtilis, Staphylococcus aureus, Vibrio cholera, Escherichia coli, Proteus vulgaris and...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2011.03.063
更新日期:2011-07-01 00:00:00
abstract::The CXCR4/CXCL12 chemokine axis can chemotactically accumulate inflammatory cells to local tissues and regulate the release of inflammatory factors. Developing novel CXCR4 modulators may provide a desirable strategy to control the development of inflammation. A series of novel hybrids were designed by integrating the ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2018.02.085
更新日期:2018-04-25 00:00:00
abstract::Many drugs are available for the treatment of systemic or superficial mycoses, but only a limited number of them are effective antifungal drugs, devoid of toxic and undesirable side effects. Furthermore, resistance development and fungistatic rather than fungicidal activities represent limitations of current antifunga...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2012.02.037
更新日期:2012-05-01 00:00:00
abstract::In this study, some novel 2,6-dimethyl-N'-substituted phenylmethylene-imidazo[2,1-b][1,3,4]thiadiazole-5-carbohydrazides (3a-3h) were synthesized from 2,6-dimethylimidazo-[2,1-b][1,3,4]thiadiazole-5-carbohydrazide (2). The newly synthesized compounds (3a-3h) were evaluated in the National Cancer Institute's 3-cell lin...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0223-5234(03)00138-7
更新日期:2003-07-01 00:00:00
abstract::Pyridoxalphosphate-6-azophenyl-2',4'-disulfonate (7a, PPADS), a nonselective P2X receptor antagonist, was extensively modified to develop more stable, potent, and selective P2X₃ receptor antagonists as potential antinociceptive agents. Based on the results of our previous report, all strong anionic groups in PPADS inc...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.10.026
更新日期:2013-01-01 00:00:00
abstract::In this study, two series of coumarin derivatives 5a∼i and 6a∼i were synthesized, and their inhibitory activity against α-glucosidase was determined. The results indicated that most of the synthesized derivatives exhibited prominent inhibitory activities against α-glucosidase. Among them, compounds 5a and 5b showed th...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.112013
更新日期:2020-03-01 00:00:00
abstract::Developing new therapeutic strategies to overcome drug resistance of cancer cells is an ongoing endeavor. From among 2 million chemicals, we identified ethyl 4-oxo-2-phenyl-1,4-dihydroquinoline-6-carboxylate (AS1712) as a low-toxicity inhibitor of lung cancer cell proliferation and xenograft tumor growth. We show that ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2019.111584
更新日期:2019-11-01 00:00:00
abstract::A series of 8-arylated purine derivatives bearing either an aniline or an alkyl amide at position 6 were found to inhibit glycogen synthase kinase-3, with good selectivity over ten kinases. Molecular modeling studies indicated that the most active compounds (8a and 8e), adopt a planar conformation, close to the shape ...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2010.04.026
更新日期:2010-08-01 00:00:00
abstract::Deoxypodophyllotoxin is stereoselectively converted into epipodophyllotoxin by recombinant human cytochrome P450 3A4 (CYP3A4). Further kinetic analysis revealed that the Michaelis-Menten K(m) and V(max) for hydroxylation of deoxypodophyllotoxin by CYP3A4 at C7 position were 1.93 microM and 1.48 nmol/min/nmol, respecti...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2007.09.005
更新日期:2008-06-01 00:00:00
abstract::Treatment of cancer patients with chemotherapeutic drugs is often associated with the occurrence of tumors with a multidrug resistance (MDR). Furthermore, the relation between overexpression of P-glycoprotein (P-gp) and resistant cancers has been well established. In this study, novel 2-aminobenzofuran derivatives wer...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2016.08.044
更新日期:2017-01-05 00:00:00
abstract::Histone Deacetylases (HDACs) have become important targets for the treatment of cancer and other diseases. In previous studies we described the development of novel spirocyclic HDAC inhibitors based on the combination of privileged structures with hydroxamic acid moieties as zinc binding group. Herein, we report furth...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2013.03.061
更新日期:2013-06-01 00:00:00
abstract::A series of diversely substituted biarylolefins based on carbohydrate and dihydroxyethylene scaffolds were synthesized and evaluated for antiproliferative activity against a panel of human tumor cell lines. Among the thirty-five yet unknown biarylolefins prepared, six displayed potent antiproliferative activities with...
journal_title:European journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.ejmech.2011.05.021
更新日期:2011-09-01 00:00:00