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Dekker T, Janssen MAC, Sutherland C, Aben RWM, Scheeren HW, Blanco-Ania D, Rutjes FPJT, Wijtmans M, de Esch IJP. An Automated, Open-Source Workflow for the Generation of (3D) Fragment Libraries. ACS Med Chem Lett 2023; 14:583-590. [PMID: 37197454 PMCID: PMC10184156 DOI: 10.1021/acsmedchemlett.2c00503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 04/27/2023] [Indexed: 05/19/2023] Open
Abstract
The recent success of fragment-based drug discovery (FBDD) is inextricably linked to adequate library design. To guide the design of our fragment libraries, we have constructed an automated workflow in the open-source KNIME software. The workflow considers chemical diversity and novelty of the fragments, and can also take into account the three-dimensional (3D) character. This design tool can be used to create large and diverse libraries but also to select a small number of representative compounds as a focused set of unique screening compounds to enrich existing fragment libraries. To illustrate the procedures, the design and synthesis of a 10-membered focused library is reported based on the cyclopropane scaffold, which is underrepresented in our existing fragment screening library. Analysis of the focused compound set indicates significant shape diversity and a favorable overall physicochemical profile. By virtue of its modular setup, the workflow can be readily adjusted to design libraries that focus on properties other than 3D shape.
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Affiliation(s)
- Tom Dekker
- Amsterdam
Institute of Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Mathilde A. C.
H. Janssen
- Institute
for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Christina Sutherland
- Amsterdam
Institute of Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Rene W. M. Aben
- Institute
for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Hans W. Scheeren
- Institute
for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Daniel Blanco-Ania
- Institute
for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Floris P. J. T. Rutjes
- Institute
for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Maikel Wijtmans
- Amsterdam
Institute of Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
| | - Iwan J. P. de Esch
- Amsterdam
Institute of Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
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2
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Grant TM, Rennison D, Arabshahi HJ, Brimble MA, Cahill P, Svenson J. Effect of regio- and stereoisomerism on antifouling 2,5-diketopiperazines. Org Biomol Chem 2022; 20:9431-9446. [PMID: 36408605 DOI: 10.1039/d2ob01864k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Marine biofouling is a problem that plagues all maritime industries at vast economic and environmental cost. Previous and current methods to prevent biofouling have employed the use of heavy metals and other toxic or highly persistent chemicals, and these methods are now coming under immense regulatory pressure. Recent studies have illustrated the potential of nature-inspired tetrasubstituted 2,5-diketopiperazines (2,5-DKPs) as eco-friendly marine biocides for biofouling control. These highly active symmetrically substituted 2,5-DKPs can be generated by combining structural motifs from cationic innate defence peptides and natural marine antifoulants. A balance between a threshold hydrophobic contribution and sufficient cationic charge has been established as key for bioactivity, and our current study further increases understanding of the antifouling mechanism by investigating the effect of both regio- and stereochemistry. Novel synthetic routes for the generation of unsymmetrical 2,5-DKPs were developed and a library of nine compounds was prepared. The compounds were screened against a series of four model macrofouling organisms (Ciona savignyi, Mytilus galloprovincialis, Spirobranchus cariniferus, and Undaria pinnatifida). Several of the evaluated compounds displayed inhibitory activity at sub-micromolar concentrations. The structural contributions to antifouling bioactivity were studied using NMR spectroscopy and molecular modelling, revealing a strong dependence on a stable amphiphilic solution structure regardless of substitution pattern.
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Affiliation(s)
- Thomas M Grant
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand.
| | - David Rennison
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand.
| | - Homayon J Arabshahi
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand.
| | - Margaret A Brimble
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand.
| | - Patrick Cahill
- Cawthron Institute, 98 Halifax Street, Nelson, New Zealand.
| | - Johan Svenson
- Cawthron Institute, 98 Halifax Street, Nelson, New Zealand.
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3
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Modeling of Anticancer Sulfonamide Derivatives Lipophilicity by Chemometric and Quantitative Structure-Retention Relationships Approaches. Molecules 2022; 27:molecules27133965. [PMID: 35807212 PMCID: PMC9268166 DOI: 10.3390/molecules27133965] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 02/01/2023] Open
Abstract
Sulfonamides are a classic group of chemotherapeutic drugs with a broad spectrum of pharmacological action, including anticancer activity. In this work, reversed-phase high-performance liquid chromatography and biomimetic chromatography were applied to characterize the lipophilicity of sulfonamide derivatives with proven anticancer activities against human colon cancer. Chromatographically determined lipophilicity parameters were compared with obtained logP, employing various computational approaches. Similarities and dissimilarities between experimental and computational logP were studied using principal component analysis, cluster analysis, and the sum of ranking differences. Furthermore, quantitative structure–retention relationship modeling was applied to understand the influences of sulfonamide’s molecular properties on lipophilicity and affinity to phospholipids.
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Grant TM, Rennison D, Cervin G, Pavia H, Hellio C, Foulon V, Brimble MA, Cahill P, Svenson J. Towards eco-friendly marine antifouling biocides - Nature inspired tetrasubstituted 2,5-diketopiperazines. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 812:152487. [PMID: 34953845 DOI: 10.1016/j.scitotenv.2021.152487] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Marine biofouling plagues all maritime industries at vast economic and environmental cost. Previous and most current methods to control biofouling have employed highly persistent toxins and heavy metals, including tin, copper, and zinc. These toxic methods are resulting in unacceptable environmental harm and are coming under immense regulatory pressure. Eco-friendly alternatives are urgently required to effectively mitigate the negative consequence of biofouling without causing collateral harm. Amphiphilic micropeptides have recently been shown to exhibit excellent broad-spectrum antifouling activity, with a non-toxic mode of action and innate biodegradability. The present work focused on incorporating the pharmacophore derived from amphiphilic micropeptides into a 2,5-diketopiperazine (DKP) scaffold. This privileged structure is present in a vast number of natural products, including marine natural product antifoulants, and provides advantages of synthetic accessibility and adaptability. A novel route to symmetrical tetrasubstituted DKPs was developed and a library of amphiphilic 2,5-DKPs were subsequently synthesised. These biodegradable compounds were demonstrated to be potent marine antifoulants displaying broad-spectrum activity in the low micromolar range against a range of common marine fouling organisms. The outcome of planned coating and field trials will dictate the future development of the lead compounds.
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Affiliation(s)
- Thomas M Grant
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - David Rennison
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Gunnar Cervin
- Department of Marine Sciences, Tjärnö Marine Laboratory, University of Gothenburg, SE-452 96 Strömstad, Sweden
| | - Henrik Pavia
- Department of Marine Sciences, Tjärnö Marine Laboratory, University of Gothenburg, SE-452 96 Strömstad, Sweden
| | - Claire Hellio
- Univ. Brest, Laboratoire des Sciences de l'Environnement MARin (LEMAR), CNRS, IRD, IFREMER, Brest 29285, France
| | - Valentin Foulon
- Univ. Brest, Laboratoire des Sciences de l'Environnement MARin (LEMAR), CNRS, IRD, IFREMER, Brest 29285, France
| | - Margaret A Brimble
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Patrick Cahill
- Cawthron Institute, 98 Halifax Street, Nelson, New Zealand
| | - Johan Svenson
- Cawthron Institute, 98 Halifax Street, Nelson, New Zealand.
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5
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Flieger J, Orzeł A, Kowalska-Kępczyńska A, Pizoń M, Trębacz H, Majerek D, Plech T, Płaziński W. Teicoplanin-Modified HPLC Column as a Source of Experimental Parameters for Prediction of the Anticonvulsant Activity of 1,2,4-Triazole-3-Thiones by the Regression Models. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2650. [PMID: 32532041 PMCID: PMC7321613 DOI: 10.3390/ma13112650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 05/27/2020] [Accepted: 05/29/2020] [Indexed: 11/16/2022]
Abstract
The cell membrane is a complex system that consists of lipids, proteins, polysaccharides, and amphiphilic phospholipids. It plays an important role in ADME processes that are responsible for the final pharmaceutical effects of xenobiotics (bioavailability, activity). To study drug-membrane interaction at the molecular level, several high-performance liquid chromatography (HPLC) membrane model systems have been proposed which are mimicking mainly its lipid character. The aim of this work was to study interactions of new synthesized antiepileptic compounds of 4-alkyl-5-(3-chlorophenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione derivatives with Chirobiotic column containing glycoprotein ligand attached to the silica matrix. The affinity of the analytes to immobilized glycoprotein ligand was examined chromatographically in reversed-phase mode. The thermodynamics of interactions between bioactive compounds and teicoplanin was studied in terms of the van't Hoff linear relationship ln k vs. 1/T in the range of 5-45 °C. Change in enthalpy (ΔH°), change in entropy (ΔS°) and change in Gibbs free energy (ΔG°) were estimated utilizing graphical extrapolation and interpolation methods. The density functional theory (DFT) approach and docking simulations were used to get the molecular interpretation and prove the obtained experimental results. Cross-correlations of chromatographic and thermodynamic parameters with non-empirical topological and quantum chemical indices suggest that the polarizability of analytes appears to be responsible for the interactions of the tested molecules with teicoplanin and, ultimately, their retention on the column. Experimental and theoretical parameters were subjected to statistical analysis using regression models. Partial least squares (PLS) regression model showed the usefulness of the experimentally measured parameter φ0 (MeOH) to discriminate between anticonvulsant active and inactive 1,2,4-triazole-3-thione derivatives. Obtained results point out the usefulness of interaction of potential anticonvulsants with glycoprotein class of compounds to anticipate their activity.
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Affiliation(s)
- Jolanta Flieger
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland;
| | - Anna Orzeł
- Faculty of Medicine, Medical University of Lublin, Aleje Racławickie 1, 20-059 Lublin, Poland;
| | - Anna Kowalska-Kępczyńska
- Department of Biochemical Diagnostics, Medical University of Lublin, Staszica 16, 20-081 Lublin, Poland;
| | - Magdalena Pizoń
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland;
| | - Hanna Trębacz
- Chair and Department of Biophysics, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland;
| | - Dariusz Majerek
- Department of Applied Mathematics, University of Technology, Nadbystrzycka 38D, 20-618 Lublin, Poland;
| | - Tomasz Plech
- Department of Pharmacology, Faculty of Nursing and Health Sciences, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland;
| | - Wojciech Płaziński
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland;
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6
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Substituted sulfonamide bioisosteres of 8-hydroxyquinoline as zinc-dependent antibacterial compounds. Bioorg Med Chem Lett 2020; 30:127110. [PMID: 32229060 DOI: 10.1016/j.bmcl.2020.127110] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 02/03/2020] [Accepted: 03/13/2020] [Indexed: 12/14/2022]
Abstract
A series of substituted sulfonamide bioisosteres of 8-hydroxyquinoline were evaluated for their antibacterial activity against the common mastitis causative pathogens Streptococcus uberis, Staphylococcus aureus and Escherichia coli, both in the presence and absence of supplementary zinc. Compounds 9a-e, 10a-c, 11a-e, 12 and 13 were demonstrated to have MICs of 0.0625 µg/mL against S. uberis in the presence of 50 µM ZnSO4. Against S. aureus compounds 9g (MIC 4 µg/mL) and 11d (MIC 8 µg/mL) showed the greatest activity, whereas all compounds were found to be inactive against E. coli (MIC > 256 µg/mL); again in the presence of 50 µM ZnSO4. All compounds were demonstrated to be significantly less active in the absence of supplementary zinc. Compound 9g was subsequently confirmed to be bactericidal, with an MBC (≥3log10 cfu/mL reduction) of 0.125 µg/mL against S. uberis in the presence of 50 µM ZnSO4. To validate the sanitising activity of compound 9g in the presence of supplementary zinc, a quantitative suspension disinfection (sanitizer) test was performed. In this preliminary test, sanitizing activity (>5log10 reduction of CFU/mL in 5 min) was observed against S. uberis for compound 9g at concentrations as low as 1 mg/mL, validating the potential of this compound to function as a topical sanitizer against the major environmental mastitis-causing microorganism S. uberis.
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7
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Wu Z, Du Y, Zhou Q, Chen L. One pot solvothermal synthesis of novel fluorescent phloem-mobile phenylpyrazole amide pesticides fused olefin moieties to enhance insecticidal bioactivities and photodegradation properties. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 163:51-63. [PMID: 31973870 DOI: 10.1016/j.pestbp.2019.10.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 08/16/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
In order to find a novel type of fluorescent phloem-mobile insecticides, a facile one-pot solvothermal strategy via fipronil addition-elimination substitution reaction with the corresponding acyl chloride derivatives has been employed to construct series of phenylpyrazole amide derivatives (PAs) fused olefin moieties in high yields. The investigation for insecticidal bioactivities of PAs against 3rd instar larvae of Plutella xylostella exhibited better activities than that of fipronil, which can be elucidated by enhanced phloem mobility and calcium ions' coordination with amide N-C=O, CC double bonds and chloride ions, extended conjugate moieties and decreasing steric hindrance of the stereoscopic structure. The introduction of amide units conferred phloem mobility to PAs, which was evaluated by the hydrophobic parameters determined with reversed-phase HPLC through the chromatographic capacity factor. By introducing conjugate moieties and organic chromophore into phenylpyrazole parent structure to increase their conjugation degree and light absorption abilities, PAs exhibited good photodegradation properties. The relationships between extended conjugate moieties of parent structure, electronegativity of substituted groups and photodegradation properties have been discussed. The olefin units connected to PAs caused electronic absorption and fluorescent wavelengths bathochromic shifted. Under simulated solar irradiation, PAs can be reconverted into fipronil parent fragments by photodegradation, thereby enhancing their insecticidal activity. The fluorescent quantum yields of PAs were almost 4 times that of fipronil, which also laid a foundation for the natural degradation and fluorescence detection of insecticide residues.
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Affiliation(s)
- Zhongda Wu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Yanting Du
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Quan Zhou
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Lianqing Chen
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, China; Department of Chemistry, University of Wisconsin-Platteville, Platteville 53818, United States.
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8
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Sztanke M, Rzymowska J, Janicka M, Sztanke K. Synthesis, structure elucidation, determination of antiproliferative activities, lipophilicity indices and pharmacokinetic properties of novel fused azaisocytosine-like congeners. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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9
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Ogden PB, Dorsey JG. Reversed phase HPLC with high temperature ethanol/water mobile phases as a green alternative method for the estimation of octanol/water partition coefficients. J Chromatogr A 2019; 1601:243-254. [PMID: 31104849 DOI: 10.1016/j.chroma.2019.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/01/2019] [Accepted: 05/02/2019] [Indexed: 11/18/2022]
Abstract
High temperature ethanol/water was explored as a green eluent in the reversed-phase liquid chromatographic approximation of pure water retention (log kw) and subsequent estimation of the octanol/water partition coefficient (log P) via the Collander equation and the Leave-One-Out method. As part of this work, linear solvation energy relationships were employed to compare the log kw extrapolated systems based on high temperature ethanol/water, ambient acetonitrile/water, and ambient methanol/water mobile phases. Based on the comparisons of the three organic modifiers, high temperature ethanol/water mobile phases were observed to provide the best estimation of log P. This conclusion is based on a high log P correlation of 0.968 R2 and a near unity cos θ value of 0.997 between LSER coefficient vectors of ethanol/water estimated log P and octanol/water log P systems. The method employed in this work, further, provided high correlation for the hydrogen-bonding basicity term between the two systems.
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Affiliation(s)
- Phillip B Ogden
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, United States
| | - John G Dorsey
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, United States.
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10
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Tot K, Lazić A, Božić B, Mandić A, Djaković Sekulić T. QSAR characterization of new synthesized hydantoins with antiproliferative activity. Biomed Chromatogr 2019; 33:e4539. [PMID: 30927290 DOI: 10.1002/bmc.4539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 03/07/2019] [Accepted: 03/21/2019] [Indexed: 12/12/2022]
Abstract
Hydantois have been identified as constituents of a number of pharmacologically active molecules. In the present study, we have examined in vitro antiproliferative activity against human colon cancer cell lines HCT-116 of three series of 3-(4-substituted benzyl)-hydantoins with various substituent attached in position 5 of the hydantoin ring. Since the investigated compounds have recently been synthesized and show antiproliferative activity, a good understanding of the properties of the potential drug responsible for their pharmacokinetics is an important goal for their further development. One of the important properties is lipophilicity. Lipophilicity has been assessed by reversed-phase liquid chromatography (high-performance thin-layer chromatography and high-pressure liquid chromatography) by means of direct and indirect (using calibration curve) methods. Chromatographic lipophilicity indices in addition to calculated logP values were compared by hierarchical cluster analysis. The linear solvation energy relationship approach was used to understand and compare the types and relative strength of the molecular interactions that occur in the chromatographic as well as in the n-octanol-water partitioning systems. Finally, correlation between in silico pharmacokinetic predictors and antiproliferative activity was examined. Preliminary quantitative structure-activity relationship modeling indicates that pharmacokinetic predictors capture only one-quarter of all chemical features that are important for antiproliferative activity itself. Among selected descriptors are chromatographic lipophilicity indices.
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Affiliation(s)
- Kristina Tot
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Trg Dositeja Obradovića 3, 2100, Novi Sad, Republic of Serbia
| | - Anita Lazić
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000, Belgrade, Republic of Serbia
| | - Biljana Božić
- Faculty of Biology, University of Belgrade, Studentski trg 3, 11000, Belgrade, Republic of Serbia
| | - Anamarija Mandić
- Faculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000, Novi Sad, Republic of Serbia
| | - Tatjana Djaković Sekulić
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Trg Dositeja Obradovića 3, 2100, Novi Sad, Republic of Serbia
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Šegan S, Opsenica D, Milojković-Opsenica D. Thin-layer chromatography in medicinal chemistry. J LIQ CHROMATOGR R T 2019. [DOI: 10.1080/10826076.2019.1585615] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Sandra Šegan
- ICTM – Department of Chemistry, University of Belgrade, Belgrade, Serbia
| | - Dejan Opsenica
- ICTM – Department of Chemistry, University of Belgrade, Belgrade, Serbia
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12
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Poole CF. Chromatographic test methods for characterizing alkylsiloxane-bonded silica columns for reversed-phase liquid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1092:207-219. [DOI: 10.1016/j.jchromb.2018.06.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 06/03/2018] [Accepted: 06/04/2018] [Indexed: 02/09/2023]
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13
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Saranjampour P, Armbrust K. Repeatability of n-octanol/water partition coefficient values between liquid chromatography measurement methods. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:15111-15119. [PMID: 29557045 DOI: 10.1007/s11356-018-1729-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 03/13/2018] [Indexed: 06/08/2023]
Abstract
The n-octanol/water partition coefficient (KOW) is a physical/chemical property that is extensively used for regulatory and environmental risk and exposure assessments. The KOW value can estimate various chemical properties such as water solubility, bioavailability, and toxicity using quantitative structure-activity relationships which demands an accurate knowledge of this property. The present investigation aims to compare outcomes of three commonly cited methods of KOW measurement in the literature for six hydrophobic chemicals with insecticidal functions as well as highly volatile petroleum constituents. This measurement has been difficult to obtain for the selected pyrethroid insecticides, cypermethrin, and bifenthrin and is a novel measurement for the latter: polycyclic aromatic sulfur heterocycles, dibenzothiophene (DBT), and three of its alkyl derivatives except for DBT. The KOW values were obtained using two liquid chromatographic methods with isocratic and gradient programming, and the slow-stirring method following OECD 117 and 123 guidelines, respectively. The mean log KOW values of bifenthrin, cypermethrin, DBT, methyl-DBT, dimethyl-DBT, and diethyl-DBT were 8.4 ± 0.1, 6.0 ± 0.3, 4.8 ± 0.0, 5.4 ± 0.1, 6.0 ± 0.1, and 6.8 ± 0.0 using the HPLC method with gradient programing. The KOW values were significantly reproducible within a method, however, not between the methods. Results suggest assessing a chemical's property and environmental risk and exposure solely based on the KOW value should be practiced with caution.
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Affiliation(s)
- Parichehr Saranjampour
- Department of Environmental Sciences, College of the Coast and Environment, Louisiana State University, Energy, Coast and Environment Building, Baton Rouge, LA, 70803, USA.
| | - Kevin Armbrust
- Department of Environmental Sciences, College of the Coast and Environment, Louisiana State University, Energy, Coast and Environment Building, Baton Rouge, LA, 70803, USA
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14
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Giaginis C, Tsopelas F, Tsantili-Kakoulidou A. The Impact of Lipophilicity in Drug Discovery: Rapid Measurements by Means of Reversed-Phase HPLC. Methods Mol Biol 2018; 1824:217-228. [PMID: 30039409 DOI: 10.1007/978-1-4939-8630-9_12] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Lipophilicity constitutes a vital physicochemical property in drug design as it is connected with pharmacodynamic and pharmacokinetic properties as well as toxicological aspects of candidate drugs. Traditional partitioning experiments to determine n-octanol-water coefficients are laborious and time-consuming, while they cannot be reliably performed for highly lipophilic or compounds undergoing degradation. Alternatively, lipophilicity of candidate drugs can be accurately and reproducibly determined using reversed-phase liquid chromatography. In this chapter, the details of protocols for lipophilicity assessment using reversed-phase HPLC, under conditions which provide the best simulation of n-octanol-water partition coefficients, are described.
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Affiliation(s)
- Constantinos Giaginis
- Department of Food Science and Nutrition, School of Environment, University of the Aegean, Myrina, Lemnos, Greece
| | - Fotios Tsopelas
- Laboratory of Inorganic and Analytical Chemistry, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Anna Tsantili-Kakoulidou
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, Athens, Greece.
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15
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Dai C, Zhang W, He R, Xiong F, Ma H. Protein breakdown and release of antioxidant peptides during simulated gastrointestinal digestion and the absorption by everted intestinal sac of rapeseed proteins. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.08.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Valkó KL. Lipophilicity and biomimetic properties measured by HPLC to support drug discovery. J Pharm Biomed Anal 2016; 130:35-54. [PMID: 27084527 DOI: 10.1016/j.jpba.2016.04.009] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/05/2016] [Accepted: 04/07/2016] [Indexed: 12/21/2022]
Abstract
HPLC methods that use chromatographic retention times for gaining information about the properties of compounds for the purpose of designing drug molecules are reviewed. Properties, such as lipophilicity, protein binding, phospholipid binding, and acid/base character can be incorporated in the design of molecules with the right biological distribution and pharmacokinetic profile to become an effective drug. Standardization of various methodologies is suggested in order to obtain data suitable for inter-laboratory comparison. The published HPLC methods for lipophilicity, acid/base character, protein and phospholipid binding are critically reviewed and compared with each other using the solvation equation approach. One of the most important discussion points is how these data can be used in models and how they can influence the drug discovery process. Therefore, the published models for volume of distribution, unbound volume of distribution and drug efficiency are also discussed. The general relationships between the chemical structure and biomimetic HPLC properties are described in view of ranking and selecting putative drug molecules.
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Affiliation(s)
- Klára L Valkó
- Department of Pharmaceutical and Biological Chemistry, UCL School of Pharmacy, London, United Kingdom; Bio-Mimetic Chromatography Consultancy, 17 Cabot Close, Stevenage, Herts SG2 0ES, United Kingdom.
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Sztanke M, Tuzimski T, Janicka M, Sztanke K. Structure-retention behaviour of biologically active fused 1,2,4-triazinones--correlation with in silico molecular properties. Eur J Pharm Sci 2014; 68:114-26. [PMID: 25528370 DOI: 10.1016/j.ejps.2014.12.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Revised: 12/08/2014] [Accepted: 12/11/2014] [Indexed: 02/08/2023]
Abstract
The chromatographic behaviour and significant lipophilicity/hydrophobicity indices (log k(w), S, φ(0)) are presented for 21 biologically active fused 1,2,4-triazinones based on the linear relationship: log k = log k(w)-Sφ established for the retention on LC-18 HPLC column, using as mobile phases mixtures of three organic modifiers with water. The effect of these mobile phase modifiers on the chromatographic behaviour of solutes was established and the organic modifier of choice is suggested. The complex correlation of slopes versus intercepts obtained for acetonitrile, contrary to linear ones obtained for methanol and dioxane are disclosed. The observed difference in retention mechanism for acetonitrile compared to methanol and dioxane is explained by intermolecular interactions encoded in lipophilicity. Linear correlations with statistically significant levels between log kw values determined from three different chromatographic systems were obtained. The relationships between log k(w) constants (derived from the linear model for methanol-water mobile phases) and predicted log P and log S values by the use of various computational methods were investigated and these were established with high correlation coefficients. The predicted log P values plotted against φ(0 (MeOH)) indices showed the best fit. Principal component analysis was used to compare various lipophilicity parameters of the solutes and their in silico biological descriptors relevant to optimal pharmacokinetics profile. The similarities and dissimilarities between all the variables and molecular structures of solutes are presented. Statistically significant correlations were found between the chromatographic lipophilicity indices and the calculated pharmacokinetic descriptors: fraction unbound in brain (f(u, brain)), oral bioavailability (%F), permeability and intestinal absorption in jejunum (Caco-2), skin permeation (log K(p)) and blood/brain concentration (log BB).
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Affiliation(s)
- Małgorzata Sztanke
- Chair and Department of Medical Chemistry, Medical University of Lublin, 4A Chodźki Street, 20-093 Lublin, Poland.
| | - Tomasz Tuzimski
- Department of Physical Chemistry, Chair of Chemistry, Faculty of Pharmacy with Medical Analytics Division, Medical University of Lublin, 4A Chodźki Street, 20-093 Lublin, Poland
| | - Małgorzata Janicka
- Maria Curie-Skłodowska University, Faculty of Chemistry, Department of Physical Chemistry, Maria Curie-Skłodowska Sq. 3, 20-031 Lublin, Poland
| | - Krzysztof Sztanke
- Laboratory of Bioorganic Synthesis and Analysis, Chair and Department of Medical Chemistry, Medical University of Lublin, 4A Chodźki Street, 20-093 Lublin, Poland
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Liang Q, Wang L, He Y, Wang Z, Xu J, Ma H. Hydrolysis kinetics and antioxidant activity of collagen under simulated gastrointestinal digestion. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.08.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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Ostrowska K, Hejchman E, Maciejewska D, Włodarczyk A, Wojnicki K, Matosiuk D, Czajkowska A, Młynarczuk-Biały I, Dobrzycki Ł. Microwave-assisted preparation, structural characterization, lipophilicity, and anti-cancer assay of some hydroxycoumarin derivatives. MONATSHEFTE FUR CHEMIE 2014; 146:89-98. [PMID: 26166896 PMCID: PMC4494852 DOI: 10.1007/s00706-014-1320-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 09/23/2014] [Indexed: 11/11/2022]
Abstract
ABSTRACT A new series of hydroxycoumarin derivatives has been synthesized using conventional synthesis. The syntheses were accelerated by microwave assistance. Yields in both cases were comparable (59-69 %). The structures were established by 1H and 13C NMR spectroscopy and high-resolution mass spectrometry. Five compounds (5-hydroxy-4,7-dimethylcoumarin, 6-acetyl-5-hydroxy-4,7-dimethylcoumarin, 4-(cyanomethoxy)chromen-2-one, 5-(cyanomethoxy)-4,7-dimethylchromen-2-one, and 6-acetyl-5-(cyanomethoxy)-4,7-dimethylchromen-2-one) were assayed for anti-cancer activity. For all presented coumarin derivatives, lipophilicity was measured using reversed-phase TLC in different eluent systems with standardization. In addition, the crystal structure of 6-acetyl-5-hydroxy-4,7-dimethylcoumarin has been solved by X-ray structure analysis of single crystals. GRAPHICAL ABSTRACT
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Affiliation(s)
- Kinga Ostrowska
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha, 02 097 Warsaw, Poland
| | - Elżbieta Hejchman
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha, 02 097 Warsaw, Poland
| | - Dorota Maciejewska
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha, 02 097 Warsaw, Poland
| | - Agata Włodarczyk
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances, Faculty of Pharmacy, Medical University of Lublin, 1 Al. Racławickie, 20 059 Lublin, Poland
| | - Kamil Wojnicki
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances, Faculty of Pharmacy, Medical University of Lublin, 1 Al. Racławickie, 20 059 Lublin, Poland
| | - Dariusz Matosiuk
- Department of Synthesis and Chemical Technology of Pharmaceutical Substances, Faculty of Pharmacy, Medical University of Lublin, 1 Al. Racławickie, 20 059 Lublin, Poland
| | - Agnieszka Czajkowska
- Department of Histology and Embryology, Centre of Biostructure Research, Medical University of Warsaw, 5 Chałubińskiego, 02 004 Warsaw, Poland
| | - Izabela Młynarczuk-Biały
- Department of Histology and Embryology, Centre of Biostructure Research, Medical University of Warsaw, 5 Chałubińskiego, 02 004 Warsaw, Poland
| | - Łukasz Dobrzycki
- Crystallochemistry Laboratory, Chemistry Department, Warsaw University, 1 Pasteura, 02 093 Warsaw, Poland
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20
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Bergström CA, Holm R, Jørgensen SA, Andersson SB, Artursson P, Beato S, Borde A, Box K, Brewster M, Dressman J, Feng KI, Halbert G, Kostewicz E, McAllister M, Muenster U, Thinnes J, Taylor R, Mullertz A. Early pharmaceutical profiling to predict oral drug absorption: Current status and unmet needs. Eur J Pharm Sci 2014; 57:173-99. [DOI: 10.1016/j.ejps.2013.10.015] [Citation(s) in RCA: 192] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 10/17/2013] [Accepted: 10/27/2013] [Indexed: 01/17/2023]
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21
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Rodenas-Montano J, Ortiz-Bolsico C, Ruiz-Angel M, García-Alvarez-Coque M. Implementation of gradients of organic solvent in micellar liquid chromatography using DryLab®: Separation of basic compounds in urine samples. J Chromatogr A 2014; 1344:31-41. [DOI: 10.1016/j.chroma.2014.03.073] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 03/25/2014] [Accepted: 03/27/2014] [Indexed: 11/26/2022]
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22
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Kuroda Y, Hamaguchi R, Tanimoto T. Phospholipid-Modified ODS Monolithic Column for Affinity Prediction of Hydrophobic Basic Drugs to Phospholipids. Chromatographia 2014. [DOI: 10.1007/s10337-013-2621-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Kahsay G, Song H, Van Schepdael A, Cabooter D, Adams E. Hydrophilic interaction chromatography (HILIC) in the analysis of antibiotics. J Pharm Biomed Anal 2014; 87:142-54. [DOI: 10.1016/j.jpba.2013.04.015] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 04/10/2013] [Accepted: 04/13/2013] [Indexed: 10/26/2022]
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24
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Giaginis C, Theocharis S, Tsantili-Kakoulidou A. Octanol/water partitioning simulation by RP-HPLC for structurally diverse acidic drugs: Comparison of three columns in the presence and absence of n
-octanol as the mobile phase additive. J Sep Sci 2013; 36:3830-6. [DOI: 10.1002/jssc.201300711] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Revised: 09/10/2013] [Accepted: 10/01/2013] [Indexed: 12/25/2022]
Affiliation(s)
- Costas Giaginis
- Department of Pharmaceutical Chemistry; School of Pharmacy; University of Athens, Panepistimiopolis; Zografou Athens Greece
- Department of Food Science and Nutrition; University of the Aegean; Myrina Lemnos Greece
| | - Stamatios Theocharis
- First Department of Pathology; Medical School, University of Athens; Goudi Athens Greece
| | - Anna Tsantili-Kakoulidou
- Department of Pharmaceutical Chemistry; School of Pharmacy; University of Athens, Panepistimiopolis; Zografou Athens Greece
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Giaginis C, Tsantili-Kakoulidou A. Quantitative Structure–Retention Relationships as Useful Tool to Characterize Chromatographic Systems and Their Potential to Simulate Biological Processes. Chromatographia 2012. [DOI: 10.1007/s10337-012-2374-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Escuder-Gilabert L, Sagrado S, Villanueva-Camañas RM, Medina-Hernández MJ. Quantitative retention-structure and retention-activity relationship studies of local anesthetics by micellar liquid chromatography. Anal Chem 2012; 70:28-34. [PMID: 21644596 DOI: 10.1021/ac970464o] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The retention of compounds in micellar liquid chromatography (MLC) is governed by hydrophobic and electrostatic forces. For ionic compounds, both interactions should be considered. The present report offers a novel retention model that includes the hydrophobicity of compounds and the molar fraction of the charged form of compounds and compares it with other previously reported models. High correlations between the logarithm of capacity factors and these structural parameters were obtained for local anesthetics with different degrees of ionization using a nonionic surfactant solution as mobile phase. Modeling the retention of compounds as a function of physicochemical parameters and experimental variables is established by means of multiple linear regression. In addition, a predictive model for estimating the hydrophobicity of local anesthetics is proposed. Finally, quantitative and qualitative retention-activity relationships in MLC are also investigated for these compounds. An excellent correlation between the capacity factors in MLC and the anesthetic potency of local anesthetics was obtained.
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Affiliation(s)
- L Escuder-Gilabert
- Departamento de Química Analítica, Facultad de Farmacia, Universidad de Valencia, C/ Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
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27
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Chrysanthakopoulos M, Nicolaou I, Demopoulos V, Tsantili-Kakoulidou A. The efficiency of RP-TLC for lipophilicity assessment. A comparative study on a series of pyrrolyl-acetic acid derivatives, inhibitors of aldose reductase. JPC-J PLANAR CHROMAT 2012. [DOI: 10.1556/jpc.25.2012.4.12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Usefulness of reversed-phase HPLC enriched with room temperature imidazolium based ionic liquids for lipophilicity determination of the newly synthesized analgesic active urea derivatives. J Pharm Biomed Anal 2012; 66:58-67. [DOI: 10.1016/j.jpba.2012.02.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 02/27/2012] [Accepted: 02/28/2012] [Indexed: 11/20/2022]
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29
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Nurmi J, Pellinen J, Rantalainen AL. Critical evaluation of screening techniques for emerging environmental contaminants based on accurate mass measurements with time-of-flight mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2012; 47:303-12. [PMID: 22431456 DOI: 10.1002/jms.2964] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Emerging contaminants from wastewater effluent samples were analysed, using posttarget and nontarget analysis techniques. The samples were analysed with an ultra performance liquid chromatograph-time-of-flight mass spectrometer (UPLC-TOF-MS), and the resulting data were processed with commercial deconvolution software. The method works well for posttarget analysis with prior information about the retention times of the compounds of interest. With positive polarity, 63 of 66 compounds and with negative polarity, 18 of 20 compounds were correctly identified in a spiked sample, while two compounds of a total of 88 fell out of the mass range. Furthermore, a four-stage process for identification was developed for the posttarget analysis lacking the retention time data. In the process, the number of candidate compounds was reduced by using the accurate mass of selected compounds in two steps (stages 1 and 2), structure-property relationships (stage 3) and isotope patterns of the analytes (stage 4). The process developed was validated by analysing wastewater samples spiked with 88 compounds. This procedure can be used to gain a preliminary indication of the presence of certain analytes in the samples. Nontarget analysis was tested by applying a theoretical mass spectra library for a wastewater sample spiked with six pharmaceuticals. The results showed a high number of false identifications. In addition, manual processing of the data was considered laborious and ineffective. Finally, the posttarget analysis was applied to a real wastewater sample. The analysis revealed the presence of six compounds that were afterwards confirmed with standard compounds as being correct. Three psycholeptics (nordiazepam, oxazepam and temazepam) could be tentatively identified, using the identification process developed. Posttarget analysis with UPLC-TOF-MS proved to be a promising method for analysing wastewater samples, while we concluded that the software for nontarget analysis will need improvement before it can be used in environmental analytical work with LC-TOF-MS systems.
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Affiliation(s)
- Joonas Nurmi
- Department of Environmental Sciences, University of Helsinki, Niemenkatu 73, FI-15140, Lahti, Finland.
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Cozma A, Zaharia V, Ignat A, Gocan S, Grinberg N. Prediction of the Lipophilicity of Nine New Synthesized Selenazoly and Three Aroyl-Hydrazinoselenazoles Derivatives by Reversed-Phase High Performance Thin-Layer Chromatography. J Chromatogr Sci 2012; 50:157-61. [DOI: 10.1093/chromsci/bmr034] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- A Cozma
- University of Oradea, Faculty of Science, Department of Chemistry, Romania
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31
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Cozma A, Vlase L, Ignat A, Zaharia V, Gocan S, Grinberg N. PREDICTION OF THE LIPOPHILICITY OF EIGHT NEWP-TOLUENESULFONYL-HYDRAZINOTHIAZOLE AND HYDRAZINE-BIS-THIAZOLE DERIVATIVES: A COMPARISON BETWEEN RP-HPTLC AND RP-HPLC. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.631658] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Alina Cozma
- a Department of Chemistry , University of Oradea, Faculty of Science , Romania
| | - Laurian Vlase
- b Faculty of Pharmacy , University of Medicine and Pharmacy “Iuliu Haţieganu,” , Romania
| | - Adriana Ignat
- b Faculty of Pharmacy , University of Medicine and Pharmacy “Iuliu Haţieganu,” , Romania
| | - Valentin Zaharia
- b Faculty of Pharmacy , University of Medicine and Pharmacy “Iuliu Haţieganu,” , Romania
| | - Simion Gocan
- c Analytical Chemistry Department , University Babes-Bolyai , Cluj-Napoca , Romania
| | - Nelu Grinberg
- d Boerhringer-Ingelheim Pharmaceutical, Inc. , Ridgefield , Connecticut , USA
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Bernal J, Ares AM, Pól J, Wiedmer SK. Hydrophilic interaction liquid chromatography in food analysis. J Chromatogr A 2011; 1218:7438-52. [DOI: 10.1016/j.chroma.2011.05.004] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Revised: 05/02/2011] [Accepted: 05/03/2011] [Indexed: 12/01/2022]
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Hydrophobicity of ionisable compounds studied by countercurrent chromatography. J Chromatogr A 2011; 1218:6044-52. [DOI: 10.1016/j.chroma.2011.01.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Revised: 01/03/2011] [Accepted: 01/06/2011] [Indexed: 11/17/2022]
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Contributions to reversed-phase column selectivity. I. Steric interaction. J Chromatogr A 2011; 1218:1724-42. [DOI: 10.1016/j.chroma.2011.01.047] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 01/16/2011] [Accepted: 01/17/2011] [Indexed: 11/22/2022]
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35
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Godard T, Grushka E. The use of phospholipid modified column for the determination of lipophilic properties in high performance liquid chromatography. J Chromatogr A 2011; 1218:1211-8. [DOI: 10.1016/j.chroma.2010.12.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 12/20/2010] [Accepted: 12/23/2010] [Indexed: 10/18/2022]
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36
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Giaginis C, Tsantili-Kakoulidou A. The performance of 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid as mobile phase additive in HPLC-based lipophilicity assessment. Biomed Chromatogr 2010; 25:606-12. [DOI: 10.1002/bmc.1491] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2010] [Accepted: 06/28/2010] [Indexed: 11/09/2022]
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Komsta Ł, Skibiński R, Berecka A, Gumieniczek A, Radkiewicz B, Radoń M. Revisiting thin-layer chromatography as a lipophilicity determination tool--a comparative study on several techniques with a model solute set. J Pharm Biomed Anal 2010; 53:911-8. [PMID: 20655160 DOI: 10.1016/j.jpba.2010.06.024] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2010] [Revised: 06/16/2010] [Accepted: 06/23/2010] [Indexed: 11/29/2022]
Abstract
The lipophilicity of a compound is a fundamental property related to pharmaceutical and biomedical activity. As many approaches are mixed together in every-day published studies, the subject needs some standardization. The paper presents a comparative study on several approaches of TLC lipophilicity determination: a single TLC run, extrapolation of a retention, principal component analysis of a retention matrix, PARAFAC on a three-way array and a PLS regression. All techniques were applied to 35 model solutes with simple molecules, using nine concentrations of six modifiers: acetonitrile, acetone, dioxane, propan-2-ol, methanol and tetrahydrofurane. The elaborated comparative analysis formed several general recommendations. Methanol and dioxane were the best modifiers, while acetonitrile gave the worst and inacceptable correlation of retention with lipophilicity. Surprisingly, good correlations were obtained for the single TLC runs and this method is underestimated in the literature. The advanced chemometric processing proposed recently, such as PCA, PARAFAC and PLS did not show a visible advantage comparing to classical methods. A need to use a robust regression and robust correlation measures, due to presence of significant outliers, was also noticed and studied.
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Affiliation(s)
- Łukasz Komsta
- Department of Medicinal Chemistry, Medical University of Lublin, Jaczewskiego 4, Lublin, Poland.
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Sârbu C, Casoni D, Kot-Wasik A, Wasik A, Namieśnik J. Modeling of chromatographic lipophilicity of food synthetic dyes estimated on different columns. J Sep Sci 2010; 33:2219-29. [DOI: 10.1002/jssc.201000099] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kawczak P, Vander Heyden Y, Nasal A, Bączek T, Drabczyñska A, Kieć-Kononowicz K, Kaliszan R. Micellar liquid chromatography for lipophilicity determination of new biologically active 1,3-purinodiones. J Sep Sci 2010; 33:1546-57. [DOI: 10.1002/jssc.200900752] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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40
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Chrysanthakopoulos M, Nicolaou I, Demopoulos VJ, Tsantili-Kakoulidou A. HPLC-based lipophilicity of pyrrolyl-acetic acid ARIs: Relationships with biological activity. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:61-7. [DOI: 10.1016/j.jchromb.2009.11.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Revised: 11/04/2009] [Accepted: 11/12/2009] [Indexed: 10/20/2022]
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Characterization of Ascentis RP-Amide column: Lipophilicity measurement and linear solvation energy relationships. J Chromatogr A 2010; 1217:65-74. [DOI: 10.1016/j.chroma.2009.11.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2009] [Revised: 10/30/2009] [Accepted: 11/02/2009] [Indexed: 11/19/2022]
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Tangyuenyongwatana P, Kowapradit J, Opanasopit P, Gritsanapan W. Cellular transport of anti-inflammatory pro-drugs originated from a herbal formulation of Zingiber cassumunar and Nigella sativa. Chin Med 2009; 4:19. [PMID: 19781052 PMCID: PMC2759945 DOI: 10.1186/1749-8546-4-19] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2008] [Accepted: 09/25/2009] [Indexed: 11/16/2022] Open
Abstract
Background The rhizome of Zingiber cassumunar and the seed of Nigella sativa are two ingredients in Thai traditional medicine to relieve dysmenorrhea and adjust the menstrual cycle. Mixture of these two herbs produces three esters, namely (E)-4-(3,4-dimethoxyphenyl)but-3-en-1-yl linoleate (1), (E)-4-(3,4-dimethoxyphenyl)but-3-en-1-yl oleate (2) and (E)-4-(3,4-dimethoxyphenyl)but-3-en-1-yl palmitate (3). The aim of this study is to examine in vitro absorption of these esters and evaluate their transport across the membrane. Methods In vitro transport of these three esters was observed in Caco-2 cell monolayers. The ester compounds 1, 2 and 3 at a concentration of 10 μM were hydrolyzed by porcine liver esterase. Results All esters transported across the Caco-2 cell without enzymatic hydrolysis. The apparent permeability coefficients Papp of compound 1 at 53 μM and 106 μM were 13.94 (0.60) × 10-6 and 14.33 (0.17) × 10-6cm/s respectively, while those of compound 2 were 9.45 (0.29) × 10-6 and 10.08 (0.32) × 10-6cm/s, respectively. Papp values of compound 3 were 7.48 (0.31) × 10-6cm/s at 53 μM and 8.60 (0.55) × 10-6cm/s at 106 μM. Papp values of the parent compound (compound D), i.e. (E)-4-(3,4-dimethoxyphenyl)but-3-en-1-ol were 8.53 (0.83) × 10-6cm/s at 53 μM and 16.38 (0.61) × 10-6cm/s at 106 μM. The ester hydrolysis of compounds 1, 2 and 3 by porcine liver esterase was monitored by HPLC and the hydrolysis reactions were completed within 10 minutes. Conclusion Using the Caco-2 cell monolayer model, the present study finds that compounds (E)-4-(3,4-dimethoxyphenyl)but-3-en-1-yl linoleate (1), (E)-4-(3,4-dimethoxyphenyl)but-3-en-1-yl oleate (2) and (E)-4-(3,4-dimethoxyphenyl)but-3-en-1-yl palmitate (3) originated from Prasaplai preparation (a Thai herbal formula) may be transported through a facilitated mechanism and serve as pro-drugs to increase the compound D level in the blood.
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Zhang N, Li Z, Che W, Xu S, Wang S. Biopartitioning Micellar Chromatography to Predict Dihydropyridine Selective Calcium Channel Antagonist Toxicity. Chromatographia 2009. [DOI: 10.1365/s10337-009-1251-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Giaginis C, Tsantili-Kakoulidou A. RPTLC retention indices of basic and neutral drugs as surrogates of octanol-water distribution coefficients. Effect of buffer constituents and pH. JPC-J PLANAR CHROMAT 2009. [DOI: 10.1556/jpc.22.2009.3.11] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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45
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Dissociation constants and micelle–water partition coefficients of hydroxybenzoic acids and parabens in surfactant micellar solutions. J Mol Liq 2009. [DOI: 10.1016/j.molliq.2008.04.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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46
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Casoni D, Kot-Wasik A, Namieśnik J, Sârbu C. Lipophilicity data for some preservatives estimated by reversed-phase liquid chromatography and different computation methods. J Chromatogr A 2009; 1216:2456-65. [DOI: 10.1016/j.chroma.2009.01.029] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2008] [Revised: 11/29/2008] [Accepted: 01/12/2009] [Indexed: 11/30/2022]
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Giaginis C, Tsantili-Kakoulidou A. Alternative measures of lipophilicity: from octanol-water partitioning to IAM retention. J Pharm Sci 2008; 97:2984-3004. [PMID: 18553641 DOI: 10.1002/jps.21244] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This review describes lipophilicity parameters currently used in drug design and QSAR studies. After a short historical overview, the complex nature of lipophilicity as the outcome of polar/nonpolar inter- and intramolecular interactions is analysed and considered as the background for the discussion of the different lipophilicity descriptors. The first part focuses on octanol-water partitioning of neutral and ionisable compounds, evaluates the efficiency of predictions and provides a short description of the experimental methods for the determination of distribution coefficients. A next part is dedicated to reversed-phase chromatographic techniques, HPLC and TLC in lipophilicity assessment. The two methods are evaluated for their efficiency to simulate octanol-water and the progress achieved in the refinement of suitable chromatographic conditions, in particular in the field of HPLC, is outlined. Liposomes as direct models of biological membranes are examined and phospolipophilicity is compared to the traditional lipophilicity concept. Difficulties associated with liposome-water partitioning are discussed. The last part focuses on Immobilised Artificial Membrane (IAM) chromatography as an alternative which combines membrane simulation with rapid measurements. IAM chromatographic retention is compared to octanol-water and liposome-water partitioning as well as to reversed-phase retention and its potential to predict biopartitioning and biological activities is discussed.
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Affiliation(s)
- Costas Giaginis
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Athens, Panepistimiopolis, Zografou, Athens 157 71, Greece
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Gikas S, Tsopelas F, Giaginis C, Dimitrakopoulos J, Livadara T, Archontaki H, Tsantili-Kakoulidou A. Chromatographic behavior of zwitterionic enalapril—Exploring the conditions for lipophilicity assessment. J Pharm Biomed Anal 2008; 48:739-43. [DOI: 10.1016/j.jpba.2008.07.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Revised: 07/15/2008] [Accepted: 07/16/2008] [Indexed: 11/28/2022]
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Effect of n-octanol in the mobile phase on lipophilicity determination by reversed-phase high-performance liquid chromatography on a modified silica column. J Chromatogr A 2008; 1209:111-9. [DOI: 10.1016/j.chroma.2008.08.118] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2008] [Revised: 08/22/2008] [Accepted: 08/26/2008] [Indexed: 11/20/2022]
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Benhaim D, Grushka E. Characterization of the GEMINI C18™ Column: Lipophilicity Measurement and LSER. J LIQ CHROMATOGR R T 2008. [DOI: 10.1080/10826070802279202] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Deborah Benhaim
- a Institute of Chemistry , The Hebrew University of Jerusalem , Jerusalem, Israel
| | - Eli Grushka
- a Institute of Chemistry , The Hebrew University of Jerusalem , Jerusalem, Israel
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