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Starek M, Plenis A, Zagrobelna M, Dąbrowska M. Assessment of Lipophilicity Descriptors of Selected NSAIDs Obtained at Different TLC Stationary Phases. Pharmaceutics 2021; 13:440. [PMID: 33805056 PMCID: PMC8064060 DOI: 10.3390/pharmaceutics13040440] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/18/2021] [Accepted: 03/21/2021] [Indexed: 11/21/2022] Open
Abstract
Lipophilicity study of selected NSAIDs, the group of the bioactive compounds usually used in humans and animals medicine, with the use of experimental and calculation methods was evaluated. LogP values are proposed and compared as descriptors of the lipophilicity of eleven compounds (from oxicams and coxibs). Obtained data were designated by thin-layer chromatography (TLC) in various chromatographic conditions, with stationary phases with different properties. The mobile phase systems were prepared by mixing the respective amounts of water and organic modifier, methanol and acetone, in the range of 30 to 80% (v/v) in 5% increments. Retention parameters (RF, RM and RM0) were calculated and statistically evaluated to establish correlations. All experimentally determined RM0 values were compared with partition coefficients obtained by computational methods using linear regression analysis. Moreover, in order to extract information about the lipophilicity of compounds from large retention datasets, two chemometric approaches, namely principal component analysis (PCA) and cluster analysis (CA) were carried out. Established models of lipophilicity may have the potential to predict the biological activity of a number of drugs. The presented knowledge may also be of use during drug discovery processes, broadening the knowledge of potential ways to modify the physicochemical properties of chemical compounds.
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Affiliation(s)
- Małgorzata Starek
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (M.Z.); (M.D.)
| | - Alina Plenis
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107, 80-416 Gdańsk, Poland;
| | - Marta Zagrobelna
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (M.Z.); (M.D.)
| | - Monika Dąbrowska
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland; (M.Z.); (M.D.)
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Assessment of the chromatographic lipophilicity of eight cephalosporins on different stationary phases. Eur J Pharm Sci 2017; 101:115-124. [DOI: 10.1016/j.ejps.2017.01.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 01/23/2017] [Accepted: 01/25/2017] [Indexed: 11/17/2022]
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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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Affiliation(s)
- Łukasz Komsta
- Department of Medicinal Chemistry, Medical University of Lublin, Lublin, Poland
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Study of the Relationships between the Structure, Lipophilicity and Biological Activity of Some Thiazolyl-carbonyl-thiosemicarbazides and Thiazolyl-azoles. Molecules 2015; 20:22188-201. [PMID: 26690402 PMCID: PMC6332165 DOI: 10.3390/molecules201219841] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 11/20/2015] [Accepted: 12/03/2015] [Indexed: 11/17/2022] Open
Abstract
Lipophilicity, as one of the most important physicochemical parameters of bioactive molecules, was investigated for twenty-two thiazolyl-carbonyl-thiosemicarbazides and thiazolyl-azoles. The determination was carried out by reversed-phase thin-layer chromatography, using a binary isopropanol-water mobile phase. Chromatographically obtained lipophilicity parameters were correlated with calculated log P and log D and with some biological parameters, determined in order to evaluate the anti-inflammatory and antioxidant potential of the investigated compounds, by using principal component analysis (PCA). The PCA grouped the compounds based on the nature of their substituents (X, R and Y), indicating that their nature, electronic effects and molar volumes influence the lipophilicity parameters and their anti-inflammatory and antioxidant effects. Also, the results of the PCA analysis applied on all the experimental and computed parameters show that the best anti-inflammatory and antioxidant compounds were correlated with medium values of the lipophilicity parameters. On the other hand, the knowledge of the grouping patterns of the tested variables allows the reduction of the number of parameters, determined in order to establish the biological activity.
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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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Cserháti T. SIMULTANEOUS EFFECT OF ORGANIC MODIFIER AND PHYSICOCHEMICAL PARAMETERS OF SOME STEROIDAL DRUGS ON THEIR RETENTION ON A NARROW-BORE C 1 COLUMN. PART 2. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.636467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Tibor Cserháti
- a Research Institute of Materials and Environmental Chemistry, Chemical Research Centre, Hungarian Academy of Sciences , Budapest , Hungary
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Dabić D, Natić M, Džambaski Z, Stojanović M, Marković R, Milojković-Opsenica D, Tešić Ž. ESTIMATION OF LIPOPHILICITY OF N-SUBSTITUTED 2-ALKYLIDENE-4-OXOTHIAZOLIDINES BY MEANS OF REVERSED-PHASE THIN-LAYER CHROMATOGRAPHY. J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.571157] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Dragana Dabić
- a Faculty of Chemistry , University of Belgrade , Belgrade, Serbia
| | - Maja Natić
- a Faculty of Chemistry , University of Belgrade , Belgrade, Serbia
| | - Zdravko Džambaski
- b Institute for Chemistry , Technology and Metallurgy , Belgrade, Serbia
| | - Milovan Stojanović
- b Institute for Chemistry , Technology and Metallurgy , Belgrade, Serbia
| | - Rade Marković
- a Faculty of Chemistry , University of Belgrade , Belgrade, Serbia
| | | | - Živoslav Tešić
- a Faculty of Chemistry , University of Belgrade , Belgrade, Serbia
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Moustafa NE, Mahmoud KEKF. Classification and Prediction of Retention Indices in One-Dimensional Capillary Gas Chromatographic Separation of Petroleum Hydrocarbons. Chromatographia 2010. [DOI: 10.1365/s10337-010-1734-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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10
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Briciu RD, Sârbu C. Lipophilicity of Flavonoids Estimated by Reversed-Phase High Performance Thin-Layer Chromatography: Chemically Bonded Plates vs. Impregnated Plates with Oils, Animal, and Human Fats. SEP SCI TECHNOL 2010. [DOI: 10.1080/01496391003775907] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Briciu RD, Sârbu C. Comparative Evaluation of Vegetable Oils-Impregnated Layers as Reversed-Phases for Thin-layer Chromatography. J AM OIL CHEM SOC 2010. [DOI: 10.1007/s11746-010-1590-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Vîrgolici M, Ponta C, Manea M, Neguţ D, Cutrubinis M, Moise I, Şuvăilă R, Teodor E, Sârbu C, Medvedovici A. Thermal desorption/gas chromatography/mass spectrometry approach for characterization of the volatile fraction from amber specimens: A possibility of tracking geological origins. J Chromatogr A 2010; 1217:1977-87. [DOI: 10.1016/j.chroma.2010.01.075] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2009] [Revised: 01/06/2010] [Accepted: 01/22/2010] [Indexed: 10/19/2022]
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13
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Casoni D, Sârbu C. Lipophilicity of Some Preservatives Estimated by RP-TLC Using Stationary Phases with Different Polarity. Chromatographia 2009. [DOI: 10.1365/s10337-009-1265-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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14
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Casoni D, Sârbu C. The lipophilicity of parabens estimated on reverse phases chemically bonded and oil-impregnated plates and calculated using different computation methods. J Sep Sci 2009; 32:2377-84. [DOI: 10.1002/jssc.200900037] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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The lipophilicity indices of flavonoids estimated by reversed-phase liquid chromatography using different computation methods. J Sep Sci 2009; 32:2066-74. [DOI: 10.1002/jssc.200900106] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Briciu RD, Kot-Wasik A, Namieśnik J, Sârbu C. A comparative study of the molecular lipophilicity indices of vitamins A and E, and of some precursors of vitamin A, estimated by HPLC and by different computation methods. ACTA CHROMATOGR 2009. [DOI: 10.1556/achrom.21.2009.2.4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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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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18
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Wang Y, Sun J, Liu H, Liu J, Zhang L, Liu K, He Z. Predicting skin permeability using liposome electrokinetic chromatography. Analyst 2009; 134:267-72. [DOI: 10.1039/b807497f] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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XIAN DL, HUANG KL, LIU SQ, XIAO JY. Quantitative Retention-Activity Relationship Studies by Liposome Electrokinetic Chromatography to Predict Skin Permeability. CHINESE J CHEM 2008. [DOI: 10.1002/cjoc.200890127] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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20
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Xian D, Huang K, Liu S, Xiao J. Liposome Electrokinetic Chromatography: An in vitro Approach for Predicting Ecotoxicity. Chromatographia 2008. [DOI: 10.1365/s10337-008-0538-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Baošić R, Radojević A, Radulović M, Miletić S, Natić M, Tešić Ž. Relationships between structure, retention and biological activity of some Schiff base ligands and their complexes. Biomed Chromatogr 2007; 22:379-86. [DOI: 10.1002/bmc.943] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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22
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Djaković-Sekulić T, Perišić-Janjić N, Sârbu C, Lozanov-Crvenković Z. Partial least-squares study of the effects of organic modifier and physicochemical properties on the retention of some thiazoles. JPC-J PLANAR CHROMAT 2007. [DOI: 10.1556/jpc.2007.6001] [Citation(s) in RCA: 7] [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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23
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Héberger K. Quantitative structure-(chromatographic) retention relationships. J Chromatogr A 2007; 1158:273-305. [PMID: 17499256 DOI: 10.1016/j.chroma.2007.03.108] [Citation(s) in RCA: 268] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2007] [Revised: 03/13/2007] [Accepted: 03/19/2007] [Indexed: 01/30/2023]
Abstract
Since the pioneering works of Kaliszan (R. Kaliszan, Quantitative Structure-Chromatographic Retention Relationships, Wiley, New York, 1987; and R. Kaliszan, Structure and Retention in Chromatography. A Chemometric Approach, Harwood Academic, Amsterdam, 1997) no comprehensive summary is available in the field. Present review covers the period of 1996-August 2006. The sources are grouped according to the special properties of kinds of chromatography: Quantitative structure-retention relationship in gas chromatography, in planar chromatography, in column liquid chromatography, in micellar liquid chromatography, affinity chromatography and quantitative structure enantioselective retention relationships. General tendencies, misleading practice and conclusions, validation of the models, suggestions for future works are summarized for each sub-field. Some straightforward applications are emphasized but standard ones. The sources and the model compounds, descriptors, predicted retention data, modeling methods and indicators of their performance, validation of models, and stationary phases are collected in the tables. Some important conclusions are: Not all physicochemical descriptors correlate with the retention data strongly; the heat of formation is not related to the chromatographic retention. It is not appropriate to give the errors of Kovats indices in percentages. The apparently low values (1-3%) can disorient the reviewers and readers. Contemporary mean interlaboratory reproducibility of Kovats indices are about 5-10 i.u. for standard non polar phases and 10-25 i.u. for standard polar phases. The predictive performance of QSRR models deteriorates as the polarity of GC stationary phase increases. The correlation coefficient alone is not a particularly good indicator for the model performance. Residuals are more useful than plots of measured and calculated values. There is no need to give the retention data in a form of an equation if the numbers of compounds are small. The domain of model applicability of models should be given in all cases.
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Affiliation(s)
- Károly Héberger
- Chemical Research Center, Hungarian Academy of Sciences, P.O. Box 17, H-1525 Budapest, Hungary.
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Kamiński K, Obniska J, Dybała M. Synthesis, physicochemical and anticonvulsant properties of new N-phenylamino derivatives of 2-azaspiro[4.4]nonane- and [4.5]decane-1,3-diones: part V. Eur J Med Chem 2007; 43:53-61. [PMID: 17475369 DOI: 10.1016/j.ejmech.2007.02.024] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2006] [Revised: 02/20/2007] [Accepted: 02/27/2007] [Indexed: 11/25/2022]
Abstract
The synthesis, physicochemical and pharmacological properties of new N-phenylamino derivatives of 2-azaspiro[4.4]nonane-1,3-dione (8-10), 2-azaspiro[4.5]decane-1,3-dione (11-18) and 3-cyclohexyl-pyrrolidine-2,5-dione (19, 20) derivatives were described. The anticonvulsant properties of those compounds were examined by a maximal electroshock (MES) and a pentylenetetrazole (scPTZ) tests, and their neurotoxicity was determined using a rota-rod test. The most active was N-[(2,4-dichlorophenyl)-amino]-2-azaspiro[4.4]nonane-1,3-dione (9), which exhibited anti-seizure properties in the MES model at a dose of 100mg/kg in mice and at a dose of 30mg/kg in rats. To explain the possible mechanism of action, for chosen active derivatives N-[(2,4-dichlorophenyl)-amino]-2-azaspiro[4.4]nonane-1,3-dione (9), N-[(4-bromophenyl)-amino]-2-azaspiro[4.4]nonane-1,3-dione (10), N-[(2,4-dichlorophenyl)-amino]-2-azaspiro[4.5]decane-1,3-dione (12) and N-[(4-bromophenyl)-amino]-2-azaspiro[4.5]decane-1,3-dione (13) their influence on GABA(A) receptors were tested in vitro. Moreover, for all compounds obtained the lipophilic properties were determined by use of RP-HPLC method.
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Affiliation(s)
- Krzysztof Kamiński
- Department of Pharmaceutical Chemistry, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
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Song Y, Zhou J, Song Y, Xie J, Ye Y. Theoretical analysis on retention behavior of pigments in reversed-phase high-performance liquid chromatographic (HPLC). Comput Biol Med 2007; 37:315-9. [PMID: 16716287 DOI: 10.1016/j.compbiomed.2006.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2005] [Revised: 02/22/2006] [Accepted: 02/24/2006] [Indexed: 11/15/2022]
Abstract
Quantitative structure-retention relationship (QSRR) models have been used successfully to predict and explain retention behavior of pigments in reversed-phase high-performance liquid chromatography (HPLC). The semi-empirical quantum chemical method (PM3) in Gaussian98 was employed to calculate a set of molecular descriptors of pigments. Using multiple linear regression (MLR), we obtained empirical functions with high correlation coefficient between retention times and quantum-chemical descriptors. This analysis indicated that the proposed QSRR models were satisfactory.
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Affiliation(s)
- Yuanzhi Song
- Department of Chemistry, Huaiyin Teachers college, Jiangsu Province Key Laboratory for Chemistry of Low-Dimensional Materials, Huaian, PR China.
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Oros G, Cserháti T, Illés Z. Retention Behavior of Some Thiophosphorylglycinamide Fungicides in Adsorption and Reversed‐Phase Thin‐Layer Chromatography. J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070600758407] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Gy. Oros
- a Hungarian Academy of Sciences , Plant Protection Institute , Budapest, Hungary
| | - T. Cserháti
- b Research Institute of Materials and Environmental Chemistry , Chemical Research Center, Hungarian Academy of Sciences , Budapest, Hungary
| | - Z. Illés
- c Central European University , Budapest, Hungary
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27
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Tiperciuc B, Sârbu C. Prediction of the Chromatographic Retention (Lipophilicity) of Some New Methyl‐Thiazole‐Oxadiazoline Derivatives by Multivariate Regression Methods. J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070600832939] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- B. Tiperciuc
- a Iuliu Hatieganu University of Medicine and Pharmacy, Faculty of Pharmacy , Cluj‐Napoca, Romania
| | - C. Sârbu
- b Babeş‐Bolyai University, Faculty of Chemistry and Chemical Engineering , Cluj‐Napoca, Romania
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28
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Wu LP, Chen Y, Wang SR, Chen C, Ye LM. Quantitative retention–activity relationship models for quinolones using biopartitioning micellar chromatography. Biomed Chromatogr 2007; 22:106-14. [PMID: 17703481 DOI: 10.1002/bmc.907] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A simple and reproducible quantitative retention-activity relationship (QRAR) model utilizing biopartitioning micellar chromatography was developed for the biological parameter estimation of drugs. The correlation between retention factors of quinolones obtained in physiological conditions (pH, ionic strength) and biological activities was investigated using different second-order polynomial models. The predictive and interpretative ability of the chromatographic models was evaluated in terms of cross-validated data (RMSEC, RMSECV and RMSECVi). The aim was to obtain adequate QRAR models of half-life, clearance, volume of distribution, plasma protein combination rate, area under concentration-time curve and toxicity (LD50) of quinolones, and to elucidate the advantages and limitations of using a single parameter as independent variable for describing and estimating the activities.
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Affiliation(s)
- Li-Ping Wu
- West China School of Pharmacy, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
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Sârbu C, Tiperciuc B. Modeling, by multivariate regression methods, of the chromatographic retention (Lipophilicity) of new oxadiazoline derivatives. JPC-J PLANAR CHROMAT 2006. [DOI: 10.1556/jpc.19.2006.5.2] [Citation(s) in RCA: 7] [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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Kaminski K, Obniska J, Zagorska A, Maciag D. Synthesis, Physicochemical and Anticonvulsant Properties of NewN-(Pyridine-2-yl) Derivatives of 2-Azaspiro[4.4]nonane and [4.5]decane-1,3-dione. Part II. Arch Pharm (Weinheim) 2006; 339:255-61. [PMID: 16511896 DOI: 10.1002/ardp.200500219] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A series of N-(pyridine-2-yl) derivatives of 2-azaspiro[4.4]nonane- (1a-e), 2-azaspiro[4.5]decane- (2a-e) and 6-methyl-2-azaspiro[4.5]decane-1,3-dione (3a-e) were synthesized and tested for their anticonvulsant activity in the maximum electroshock (MES) and subcutaneous pentylenetetrazole (scPTZ) seizure threshold tests. To explain the possible mechanism of action, the most active compounds N-(3-methylpyridine-2-yl)-2-azaspiro[4.4]nonane-1,3-dione (1b), N-(3-methylpyridine-2-yl)-2-azaspiro[4.5]decane-1,3-dione (2b), N-(4-methylpyridine-2-yl)-2-azaspiro[4.5]decane-1,3-dione (2c), and N-(3-methylpyridine-2-yl)-6-methyl-2-azaspiro[4.5]decane-1,3-dione (3b) were tested in vitro for their influence on voltage-sensitive calcium channel receptors, however, they revealed low affinities. For all synthesized compounds the lipophilicity was determined by use of RP-TLC method. The correlation between the lipophilicity and anticonvulsant activity was obtained--the higher the lipophilicity the stronger the anticonvulsant efficacy.
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Affiliation(s)
- Krzysztof Kaminski
- Department of Pharmaceutical Chemistry, Jagiellonian University Medical College, Krakow, Poland
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Kánya Z, Forgács E, Cserháti T, Illés Z. Reducing Dimensionality in Principal Component Analysis – A Method Comparison. Chromatographia 2006. [DOI: 10.1365/s10337-005-0687-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Obniska J, Kamiński K. Lipophilicity characterization of newN-phenylamino-azaspiranes as potential anticonvulsant agents. Biomed Chromatogr 2006; 20:1185-91. [PMID: 16799923 DOI: 10.1002/bmc.682] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The lipophilicity of a library of N-phenylamino-2-azaspiro[4.4]nonane- and [4.5]decane-1,3-dione derivatives has been determined by reversed-phase thin-layer chromatography with n-propanol-Tris buffer (pH 7.4) mixtures as mobile phases. Examination of chromatographic behaviour revealed a linear correlation between R(M) values and the concentration of n-propanol in the mobile phase. The partition coefficients (logP) were also calculated by use of the PrologP module of the Pallas computer program. Comparison of R(M0) values and calculated (logP(PALLAS)) data revealed the correlation expressed by the equation: logP(PALLAS) = 0.9995 R(M0) + 1.3451 (n = 28; r = 0.8971; F = 107.13; p < 0.05). The role of the lipophilicity in the anticonvulsant activity of a set of compounds examined is discussed: the active anticonvulsants were less lipophilic than inactive ones.
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Affiliation(s)
- Jolanta Obniska
- Department of Pharmaceutical Chemistry, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland.
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Djaković-Sekulić T, Sârbu C, Perišić-Janjić N. A comparative study of the lipophilicity of benzimidazole and benztriazole derivatives by RPTLC. JPC-J PLANAR CHROMAT 2005. [DOI: 10.1556/jpc.18.2005.6.6] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Obniska J, Kamiński K. RPTLC determination of the lipophilicity of some newN-[(4-arylpiperazin-1-yl)alkyl] spirosuccinimides. JPC-J PLANAR CHROMAT 2005. [DOI: 10.1556/jpc.18.2005.5.10] [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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