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Sobańska AW, Brzezińska E. Application of planar and column micellar liquid chromatography to the prediction of physicochemical properties and biological activity of compounds. J LIQ CHROMATOGR R T 2019. [DOI: 10.1080/10826076.2019.1585614] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Anna W. Sobańska
- Department of Analytical Chemistry, Faculty of Pharmacy, Medical University of Lodz, Muszyńskiego 1, Lodz, Poland
| | - Elżbieta Brzezińska
- Department of Analytical Chemistry, Faculty of Pharmacy, Medical University of Lodz, Muszyńskiego 1, Lodz, Poland
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2
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Kempińska D, Chmiel T, Kot-Wasik A, Mróz A, Mazerska Z, Namieśnik J. State of the art and prospects of methods for determination of lipophilicity of chemical compounds. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.01.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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3
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Šegan S, Božinović N, Opsenica I, Andrić F. Consensus-based comparison of chromatographic and computationally estimated lipophilicity of benzothiepino[3,2-c]pyridine derivatives as potential antifungal drugs. J Sep Sci 2017; 40:2089-2096. [PMID: 28322031 DOI: 10.1002/jssc.201601442] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 03/01/2017] [Accepted: 03/11/2017] [Indexed: 11/10/2022]
Abstract
Lipophilicity is one of the essential properties influencing drug absorption, excretion and metabolism. It is used for screening viable drug candidates. Chromatographic behavior of thiepino[3,2-c:6,7-c']dipyridine and 16 benzothiepino[3,2-c]pyridine derivatives as potential antifungal drugs was studied using thin-layer chromatography under typical reversed-phase conditions and two microemulsion chromatographic systems. Seventeen chromatographic and nine in silico lipophilicity measures were estimated. They were compared by classical multivariate approaches: principal component analysis, hierarchical cluster analysis, and ranked and grouped by the non-parametric method-Sum of ranking differences. Two computational and two chromatographic descriptors from the typical reversed-phase conditions using acetone/water mixtures emerged as the best candidates for lipophilicity estimation. The principal component scores related to typical reversed-phase conditions using dioxane/water were ranked as statistically insignificant (the worst). Microemulsion systems were positioned in between, performing worse than in silico estimates. Thiepine derivatives were ranked and grouped by sum of ranking differences, fusing multiple lipophilicity measures. In multicriteria maximization ranking, the compound substituted by phenyl group at position 8 was selected as the most lipophilic one. It is also the most active against Candida albicans. The ranking confirmed that introduction of phenyl core is essential for increasing the lipophilicity of the studied compounds.
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Affiliation(s)
- Sandra Šegan
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
| | - Nina Božinović
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
| | - Igor Opsenica
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
| | - Filip Andrić
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
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4
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Andrić F, Bajusz D, Rácz A, Šegan S, Héberger K. Multivariate assessment of lipophilicity scales-computational and reversed phase thin-layer chromatographic indices. J Pharm Biomed Anal 2016; 127:81-93. [PMID: 27155738 DOI: 10.1016/j.jpba.2016.04.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 03/04/2016] [Accepted: 04/01/2016] [Indexed: 01/17/2023]
Abstract
Needs for fast, yet reliable means of assessing the lipophilicities of diverse compounds resulted in the development of various in silico and chromatographic approaches that are faster, cheaper, and greener compared to the traditional shake-flask method. However, at present no accepted "standard" approach exists for their comparison and selection of the most appropriate one(s). This is of utmost importance when it comes to the development of new lipophilicity indices, or the assessment of the lipophilicity of newly synthesized compounds. In this study, 50 well-known, diverse compounds of significant pharmaceutical and environmental importance have been selected and examined. Octanol-water partition coefficients have been measured with the shake-flask method for most of them. Their retentions have been studied in typical reversed thin-layer chromatographic systems, involving the most frequently employed stationary phases (octadecyl- and cyano-modified silica), and acetonitrile and methanol as mobile phase constituents. Twelve computationally estimated logP-s and twenty chromatographic indices together with the shake-flask octanol-water partition coefficient have been investigated with classical chemometric approaches-such as principal component analysis (PCA), hierarchical cluster analysis (HCA), Pearson's and Spearman's correlation matrices, as well as novel non-parametric methods: sum of ranking differences (SRD) and generalized pairwise correlation method (GPCM). Novel SRD and GPCM methods have been introduced based on the Comparisons with One VAriable (lipophilicity metric) at a Time (COVAT). For the visualization of COVAT results, a heatmap format was introduced. Analysis of variance (ANOVA) was applied to reveal the dominant factors between computational logPs and various chromatographic measures. In consensus-based comparisons, the shake-flask method performed the best, closely followed by computational estimates, while the chromatographic estimates often overlap with in silico assessments, mostly with methods involving octadecyl-modified silica stationary phases. The ones that employ cyano-modified silica perform generally worse. The introduction of alternative coloring schemes for the covariance matrices and SRD/GPCM heatmaps enables the discovery of intrinsic relationships among lipophilicity scales and the selection of best/worst measures. Closest to the recommended logKOW values are ClogP and the first principal component scores obtained on octadecyl-silica stationary phase in combination with methanol-water mobile phase, while the usage of slopes derived from Soczewinski-Matyisik equation should be avoided.
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Affiliation(s)
- Filip Andrić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Dávid Bajusz
- Medicinal Chemistry Research Group, Research Centre for Natural Sciences, Hungarian Academy of Sciences, H-1117 Budapest XI., Magyar Tudósok krt. 2, Hungary
| | - Anita Rácz
- Plasma Chemistry Research Group, Research Centre for Natural Sciences, Hungarian Academy of Sciences, H-1117 Budapest XI., Magyar Tudósok krt. 2, Hungary; Department of Applied Chemistry, Faculty of Food Science, Szent István University of Budapest, H-1118 Budapest XI., Villányi út 29-43, Hungary
| | - Sandra Šegan
- Institute of Chemistry, Technology and Metallurgy, Njegoševa 12, 11000 Belgrade, Serbia
| | - Károly Héberger
- Plasma Chemistry Research Group, Research Centre for Natural Sciences, Hungarian Academy of Sciences, H-1117 Budapest XI., Magyar Tudósok krt. 2, Hungary.
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Andrić F, Héberger K. Towards better understanding of lipophilicity: assessment of in silico and chromatographic logP measures for pharmaceutically important compounds by nonparametric rankings. J Pharm Biomed Anal 2015. [PMID: 26218287 DOI: 10.1016/j.jpba.2015.07.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Lipophilicity is one of the most frequently used physicochemical properties that affects compound solubility, determines its passive transport through biological membranes, influences biodistribution, metabolism and pharmacokinetics. We compared, ranked and grouped chromatographic lipophilicity indices and computationally estimated logP-s by sensitive and robust non-parametric approaches: sum of ranking differences (SRD) and generalized pairwise correlation method (GPCM). Chromatographic indices of fourteen neurotoxins and twenty one 1,2,4-triazole compounds have been derived from typical reversed-phase thin-layer chromatography and micellar chromatography. They were compared with in silico estimated logP-s. Under typical reversed-phase conditions, octadecyl-, octyl-, and cyanopropyl-modified silica have clear advantage over ethyl-, aminopropyl-, and diol-modified beds, i.e., the preferable choice of the stationary phase follows this order: octadecyl>octyl>cyanopropyl>ethyl>octadecylwettable>aminopropyl>diol. Many of these indices outperform the majority of computationally estimated logP-s. Clear distinction can be made based on cross-validation and statistical tests. Oppositely, micellar chromatography may not be successfully used for the lipophilicity assessment, since retention parameters obtained from the typical reversed-phase conditions outperform the parameters obtained by micellar chromatography. Both ranking approaches, SRD and GPCM, although based on different background, provide highly similar variable ordering and grouping leading to the same, above mentioned conclusions. However, GPCM results in more degeneracy, i.e., in some cases it cannot distinguish the lipophilicity parameters whereas SRD and its cross-validated version can. On the other hand GPCM produces a more characteristic grouping. Both methods can be successfully used for selection of the most and least appropriate lipophilicity measures.
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Affiliation(s)
- Filip Andrić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Károly Héberger
- Research Centre for Natural Sciences, Hungarian Academy of Sciences, H-1117 Budapest XI., Magyar Tudósok krt 2, Hungary.
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6
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Odovic J, Markovic B, Vladimirov S, Karljikovic-Rajic K. Evaluation of angiotensin-converting enzyme inhibitor's absorption with retention data of micellar thin-layer chromatography and suitable molecular descriptor. J Chromatogr Sci 2015; 53:1780-5. [PMID: 26123666 DOI: 10.1093/chromsci/bmv091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Indexed: 11/12/2022]
Abstract
Twelve angiotensin-converting enzyme (ACE) inhibitors were studied to evaluate correlation between their absorption (ABS) data available in the literature (22-96%) and hydrophobicity parameters (km and Pm/w) obtained in micellar thin-layer chromatography (MTLC) using Brij 35. The theoretical considerations showed that the geometric molecular descriptor-volume value (Vol) should be considered as an independent variable simultaneously with calculated hydrophobicity parameters in multiple linear regression analysis to obtain reliable correlation between ACE inhibitor's absorption and lipophilicity (calculated KOWWINlog P) and that captopril should be excluded from further correlations. The results of MTLC confirmed that between the two hydrophobicity parameters km and Pm/w, for absorption prediction of 11 ACE inhibitors, the micelle-water partition coefficient Pm/w provided higher correlation (R(2) = 0.756), while for the km parameter R(2) = 0.612 was obtained. The micelle-water partition coefficient Pm/w could be considered as analogous to hydrophobicity parameter C0 from reversed-phase thin-layer chromatography. Dissimilar retention behavior of lisinopril indicated its lowest non-polar interaction with micelle, because of its di-acid form. The proposed model which included ACE inhibitors on the opposite site of lipophilicity-lisinopril and fosinopril (KOWWINlog P = -0.96 and KOWWINlog P = 6.61, respectively), both with similar absorption values (25 and 36%, respectively), could indicate that absorption of investigated compounds occurs via two different mechanisms: active and passive transport.
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Affiliation(s)
- Jadranka Odovic
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade 11221, Serbia
| | - Bojan Markovic
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade 11221, Serbia
| | - Sote Vladimirov
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade 11221, Serbia
| | - Katarina Karljikovic-Rajic
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade 11221, Serbia
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7
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Sobanska AW, Wójcicka K, Brzezinska E. Evaluation of the lipophilicity of selected sunscreens--a chemometric analysis of thin-layer chromatographic retention data. J Sep Sci 2014; 37:3074-81. [PMID: 25146246 DOI: 10.1002/jssc.201400535] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 08/04/2014] [Accepted: 08/06/2014] [Indexed: 12/28/2022]
Abstract
The lipophilicities of 22 selected sunscreens, preservatives, and vitamins used in topical skin products were measured by thin-layer chromatography. Lipophilicity was calculated in silico from the sunscreen molecular structures and compared to the experimental octanol/water partition coefficients found in the literature. The retention of the compounds was investigated on an RP-18 stationary phase with mobile phases consisting of water and one of six organic modifiers (dioxane, tetrahydrofuran, acetone, acetonitrile, methanol, and dimethylformamide) at different concentrations. The theoretical lipophilicities were calculated by several computational algorithms and the results of these calculations were compared using cluster analysis. The results showed that two out of the six investigated organic modifiers (dioxane and acetone) may be used to estimate the octanol/water partition coefficients of highly lipophilic compounds having lipophilicities that cannot be measured directly by the shake-flask method.
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Affiliation(s)
- Anna W Sobanska
- Department of Analytical Chemistry, Faculty of Pharmacy, Medical University of Lodz, Lodz, Poland
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8
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Komsta Ł, Gowin E. Revisiting thin-layer chromatography as a lipophilicity determination tool. Part IV — A closer look on extrapolation and averaging. ACTA CHROMATOGR 2014. [DOI: 10.1556/achrom.26.2014.1.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Janicka M. Correlations between Chromatographic Parameters and Bioactivity Predictors of Potential Herbicides. J Chromatogr Sci 2013; 52:676-84. [DOI: 10.1093/chromsci/bmt098] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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10
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Janicka M, Stępnik K, Pachuta-Stec A. A comparative study of the lipophilicity of 1,2,4-triazoles by reversed-phase and micellar TLC and OPLC. JPC-J PLANAR CHROMAT 2013. [DOI: 10.1556/jpc.26.2013.2.9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Janicka M, Stępnik K, Pachuta-Stec A. Quantification of Lipophilicity of 1,2,4-Triazoles Using Micellar Chromatography. Chromatographia 2012; 75:449-456. [PMID: 22593604 PMCID: PMC3336053 DOI: 10.1007/s10337-012-2227-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Revised: 02/17/2012] [Accepted: 03/16/2012] [Indexed: 11/15/2022]
Abstract
High-performance liquid chromatography (HPLC), over-pressured-layer chromatography (OPLC) and thin-layer chromatography (TLC) techniques with micellar mobile phases were proposed to evaluate the lipophilicity of 21 newly synthesized 1,2,4-triazoles, compounds of potential importance in medicine or agriculture as fungicides. Micellar parameters log k(m) were compared with extrapolated R(M0) values determined from reversed-phase (RP) TLC experimental data obtained on RP-8 stationary phases as well as with log P values (Alog Ps, AClog P, Alog P, Mlog P, KowWin, xlog P2 and xlog P3) calculated from molecular structures of solutes tested. The results obtained by applying principal component analysis (PCA) and linear regression showed considerable similarity between partition and retention parameters as alternative lipophilicity descriptors, and indicated micellar chromatography as a suitable technique to study lipophilic properties of organic substances. In micellar HPLC, RP-8e column (Purospher) was applied, whereas in OPLC and TLC, RP-CN plates were applied, which was the novelty of this study and allowed the use of micellar effluents in planar chromatography measurements.
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Affiliation(s)
- Małgorzata Janicka
- Department of Physical Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 3, 20-031 Lublin, Poland
| | - Katarzyna Stępnik
- Department of Physical Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 3, 20-031 Lublin, Poland
| | - Anna Pachuta-Stec
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University, 6 Staszica St, 20-081 Lublin, Poland
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Singh R, Meena A, Negi A, Shanker K. Quantitative relationships between molecular descriptors, chromatographic retention behavior, andin vitroantituberculosis activity of phytol derivatives. JPC-J PLANAR CHROMAT 2012. [DOI: 10.1556/jpc.25.2012.1.2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Tuzimski T. Application of different modes of thin-layer chromatography and mass spectrometry for the separation and detection of large and small biomolecules. J Chromatogr A 2011; 1218:8799-812. [PMID: 22055526 DOI: 10.1016/j.chroma.2011.10.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Revised: 09/02/2011] [Accepted: 10/12/2011] [Indexed: 11/28/2022]
Abstract
Biomolecules are widespread throughout the world. A biomolecule is any organic molecule produced by a living organism, including large polymeric molecules such as proteins, polysaccharides and nucleic acids. Many sample preparation techniques are used in biomolecule analysis; the method selected depends on the complexity of the sample, the nature of the matrix and the analytes, and the analytical technique available. This review covers the current state of knowledge on thin-layer chromatography and mass spectrometry for qualitative analysis of biomolecules. In the first part of the paper the reader will gain useful information to avoid some problems about performing various modes of thin-layer chromatography combined with mass spectrometry experiments and in the second part he will find useful information for application of these techniques for separation, detection, and qualitative investigation of structures and quantitative determination of biomolecules such as proteins, peptides, oligonucleotides, amino acids, DNA, RNA, and lipids.
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Affiliation(s)
- 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.
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Mincsovics E, Tyihák E. Overpressured Layer Chromatography (OPLC) – A Flexible Tool of Analysis and Isolation. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100600528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This review briefly summarizes the overpressured layer chromatography (OPLC) technique and its progress from the beginning until today. Some theoretical aspects, important technical and methodological solutions, as well as analytical separations and isolations are demonstrated covering the last 30 years. The infusion and transfusion OPLC operations, as well as their combination, and their off-line and online processes, and off-line and online hyphenations for detection and structure elucidation are presented. The combination of OPLC separation with biological detection by direct bioautography and BioArena as an important solution touches the potential of analysis and isolation based on biological activity.
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Affiliation(s)
- Emil Mincsovics
- OPLC-NIT Ltd., Andor Street 60, H-1119 Budapest, Hungary, Department of Genetics and Plant Breeding, Corvinus University, Faculty of Horticultural Sciences, Villányi Street 29-43, H-1118 Budapest, Hungary
| | - Ernő Tyihák
- Plant Protection Institute, Hungarian Academy of Sciences, P.O. Box 102, H-1525 Budapest, Hungary
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