42032-27-9Relevant articles and documents
Substituted heteroaromatic compounds: Effect on nicotine self-administration in rats
Cashman, John R.,Okolotowicz, Karl,Cerny, Matt,Johnson, Robert,Janowsky, Aaron,Azar, Marc R.
, p. 637 - 648 (2012)
Rationale: Certain compounds that nonselectively inhibit a prominent human nicotine-metabolizing enzyme (i.e., human cytochrome P-450 2A6, hCYP 2A6) showed inhibition of smoking in humans. However, a comprehensive examination of hCYP 2A6 inhibitors to dec
Synthesis and investigation of inhibitory activities of imidazole derivatives against the metallo-β-lactamase IMP-1
Khalili Arjomandi, Omid,Kavoosi, Mahboubeh,Adibi, Hadi
, (2019/09/19)
Mutations in bacteria can result in antibiotic resistance due to the overuse or abuse of β-lactam antibiotics. One strategy which bacteria can become resistance toward antibiotics is secreting of metallo β-lactamase enzymes that can open the lactam ring of the β-lactam antibiotic and inactivate them. This issue is a threat for human health and one strategy to overcome this situation is co-administration of β-lactam antibiotics with an inhibitor. So far, no clinically available inhibitors of metallo β-lactamases (MBLs) reported and the clinically inhibitors of serine β-lactamase are useless for MBLs. Accordingly, finding a potent inhibitor of the MBLs being very important. In this study, imidazole derivatives primarily were synthesized and their inhibitory activity were measured. Later in silico binding model was used to predict the configuration and conformation of the ligands into the active site of enzyme. Two molecules demonstrated with IC50 of 39 μM and 46 μM against MBL (IMP-1).
Novel imidazole aldoximes with broad-spectrum antimicrobial potency against multidrug resistant gram-negative bacteria
Sko?ibui?, Mirjana,Odak, Renata,Rami?, Alma,Smoli?, Tomislav,Hrenar, Tomica,Primoic, Ines
, (2018/05/30)
In the search for a new class of potential antimicrobial agents, five novel N-substituted imidazole 2-aldoximes and their six quaternary salts were evaluated. The antimicrobial activity was assessed against a panel of representative Gram-positive and Gram-negative bacteria, including multidrug resistant bacteria. All compounds demonstrated potent in vitro activity against the tested microorganisms, with MIC values ranging from 6.25 to 50.0 μg/mL. Among the tested compounds, two quaternary compounds (N-but-3-enyl- and meta- (10) or para- N-chlorobenzyl (11) imidazolium 2-aldoximes) displayed the most potent and broad-spectrum activity against both Gram-positive and Gram-negative bacterial strains. The broth microdilution assay was also used to investigate the antiresistance efficacy of the both most active compounds against a set of Enterobacteriaceae isolates carried a multiple extended-spectrum β-lactamases (ESBLs) in comparison to eight clinically relevant antibiotics. N-but-3-enyl-N-meta-chlorobenzyl imidazolium 2-aldoxime was found to possess promising antiresistance efficacy against a wide range of β-lactamases producing strains (MIC 2.0 to 16.0 μg/mL). Best results for that compound were obtained against Escherichia coli and Enterobacter cloacae producing multiple β-lactamases form A and C molecular classes, which were 32- and 128-fold more potent than ceftazidime and cefotaxime, respectively. To visualize the results, principal component analysis was used as an additional classification tool. The mixture of ceftazidime and compound 10 (3 μg:2 μg) showed a strong activity and lower the necessary amount (up to 40-fold) of 10 against five of ESBL-producing isolates (MIC ≤ 1 μg/mL).
First selective CYP11B1 inhibitors for the treatment of cortisol-dependent diseases
Hille, Ulrike E.,Zimmer, Christina,Vock, Carsten A.,Hartmann, Rolf W.
supporting information; experimental part, p. 2 - 6 (2011/04/17)
Outgoing from an etomidate-based design concept, we succeeded in the development of a series of highly active and selective inhibitors of CYP11B1, the key enzyme of cortisol biosynthesis, as potential drugs for the treatment of Cushing's syndrome and rela
Synthesis, Biological Evaluation, and Molecular Modeling of 1 -Benzyl-1H-imidazoles as Selective Inhibitors of Aldosterone Synthase (CYP11B2)
Roumen, Luc,Peeters, Joris W.,Emmen, Judith M. A.,Beugels, Ilona P. E.,Custers, Erica M. G.,De Gooyer, Marcel,Plate, Ralf,Pieterse, Koen,Hilbers, Peter A. J.,Smits, Jos F. M.,Vekemans, Jef A. J.,Leysen, Dirk,Ottenheijm, Harry C. J.,Janssen, Henk M.,Rob Hermans
experimental part, p. 1712 - 1725 (2010/07/17)
Reducing aldosterone action is beneficial in various major diseases such as heart failure. Currently, this is achieved, with mineralocorticoid, receptor antagonists, however, aldosterone synthase (CYP 11B2) inhibitors may offer a promising alternative. In this study, we used three-dimensional modeling of CYP11B2 to model, the binding modes of the natural substrate 18-hydroxycorticosterone and the recently published CYP11B2 inhibitor R-fadrozole as a rational guide to design 44 structurally simple and achiral 1-benzyl-1H-imidazoles. Their syntheses, in vitro inhibitor potencies, and in silico docking are described. Some promising CYP11B2 inhibitors were identified, with our novel lead, MOERAS 115 (4-((5-phenyl-1H-imidazol-1-yl)methyl) benzonitrile) displaying an IC50 for CYP11B2 of 1.7 nM, and a CYP11B2 (versus CYP11B1) selectivity of 16.5, comparable to R-fadrozole (IC 50 for CYP11B26.0 nM, selectivity 19.8). Molecular docking of the inhibitors in the models enabled us to generate posthoc hypotheses on their binding modes, providing a valuable basis for future studies and further design of CYP11B2 inhibitors.
Palladium-catalyzed intramolecular arylation of N-benzyl-2-iodoimidazoles: A facile and rapid access to 5H-imidazo[2,1-α]isoindoles
De Figueiredo, Renata Marcia,Thoret, Sylviane,Huet, Caroline,Dubois, Joelle
, p. 529 - 540 (2007/12/29)
The first example of a Pd-catalyzed intramolecular arylation involving the C-2 position of an imidazole ring is presented. Application of this reaction led to the formation of 5H-imidazo[2,1-a]isoindole in one step from N-benzyl-2-iodoimidazole. Microwave irradiation enhanced the rate of reaction allowing the synthesis of various imidazo[2,1-a]isoindole analogues. Georg Thieme Verlag Stuttgart.
Synthesis and biochemical evaluation of a range of potent benzyl imidazole-based compounds as potential inhibitors of the enzyme complex 17α-hydroxylase/17,20-lyase (P45017α)
Owen, Caroline P.,Dhanani, Sachin,Patel, Chirag H.,Shahid, Imran,Ahmed, Sabbir
, p. 4011 - 4015 (2007/10/03)
The cytochrome P-450 enzyme, 17α-hydroxylase/17,20-lyase (P45017α), is a potential target in hormone-dependent cancers. Here, we report the synthesis and biochemical evaluation of a range of benzyl imidazole-based compounds which have been targeted against the two components of this enzyme, that is, 17α-hydroxylase (17α-OHase) and 17,20-lyase (lyase). The results from the biochemical testing suggest that the compounds synthesised are good inhibitors, with N-4-iodobenzyl imidazole (5) (IC50 = 10.06 μM against 17α-OHase and IC50 = 1.58 μM against lyase) showing equipotent activity against lyase compared to the standard compound, ketoconazole (KTZ) (IC50 = 3.76 ± 0.01 μM against 17α-OHase and IC50 = 1.66 ± 0.15 μM against lyase). Furthermore, the compounds tested are less potent towards the 17α-OHase component, a desirable property in the development of novel inhibitors of P45017α.
Synthesis, biochemical evaluation and rationalisation of the inhibitory activity of a range of 4-substituted phenyl alkyl imidazole-based inhibitors of the enzyme complex 17α-hydroxylase/17,20-lyase (P45017α)
Patel, Chirag H.,Dhanani, Sachin,Owen, Caroline P.,Ahmed, Sabbir
, p. 4752 - 4756 (2007/10/03)
We report the preliminary results of the synthesis, biochemical evaluation and rationalisation of the inhibitory activity of a number of phenyl alkyl imidazole-based compounds as inhibitors of the two components of 17α-hydroxylase/17,20-lyase (P45017α), that is, 17α-hydroxylase (17α-OHase) and 17,20-lyase (lyase). The results show that N-3-(4-bromophenyl) propyl imidazole (12) (IC50 = 2.95 μM against 17α-OHase and IC50 = 0.33 μM against lyase) is the most potent compound within the current study, in comparison to ketoconazole (KTZ) (IC50 = 3.76 μM against 17α-OHase and IC50 = 1.66 μM against lyase). Modelling of these compounds suggests that the length of the alkyl chain enhances the interaction between the inhibitor and the area of the active site corresponding to the C(3) area of the steroid backbone, thereby increasing potency.
An improved and convenient procedure for the synthesis of 1-substituted imidazoles
Kamijo,Yamamoto,Harada,Iizuka
, p. 1213 - 1221 (2007/10/02)
1-Protected imidazoles, such as 1-acetyl- and 1-benzoylimidazoles, react with various halides, such as benzyl, allyl, α-keto, and alkyl halides, to give 1-protected-3-substituted imidazolium salts in high yields. The resultant imidazolium salts are easily deprotected by treatment with water or alcohols to give the corresponding 1-substituted imidazoles in excellent yields. In this reaction the yields of 1-substituted imidazoles vary with the kinds of halides used and/or with the protecting groups, and the yields increase in the following order: benzyl halides≥allyl halides~α-keto halides>alkyl halides, and acetyl≥benzoyl>ethoxycarbonyl>diethoxymethyl>trimethylsilyl>tosyl.