1
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Kaya C, Birgül K, Bülbül B. Fundamentals of chirality, resolution, and enantiopure molecule synthesis methods. Chirality 2023; 35:4-28. [PMID: 36366874 DOI: 10.1002/chir.23512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/23/2022] [Accepted: 10/11/2022] [Indexed: 11/13/2022]
Abstract
The chirality of molecules is a concept that explains the interactions in nature. We may observe the same formula but different organizations revolving around the chiral center. Since Pasteur's meticulous observation of sodium ammonium tartrate crystals' structure, scientists have discovered many features of chiral molecules. The number of newly approved single enantiomeric drugs increases every year and takes place in the market. Thus, separation or resolution methods of racemic mixtures are of continued importance in the efficacy of drugs, installation of affordable production processes, and convenient synthetic chemistry practice. This article presents the asymmetric synthesis approaches and the classification of direct resolution methods of chiral molecules.
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Affiliation(s)
- Cem Kaya
- Department of Pharmacy, Haydarpasa Numune Training and Research Hospital, İstanbul, Turkey.,Department of Pharmaceutical Chemistry, School of Pharmacy, Altınbaş University, İstanbul, Turkey
| | - Kaan Birgül
- Department of Pharmaceutical Chemistry, School of Pharmacy, Bahçeşehir University, İstanbul, Turkey
| | - Bahadır Bülbül
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Düzce University, Düzce, Turkey
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2
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Horáček O, Nováková L, Tüzün E, Grüner B, Švec F, Kučera R. Advanced Tool for Chiral Separations of Anionic and Zwitterionic (Metalla)carboranes: Supercritical Fluid Chromatography. Anal Chem 2022; 94:17551-17558. [PMID: 36475613 DOI: 10.1021/acs.analchem.2c03895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The continuous expansion of research in the field of stable carboranes and their wide potential in the drug design require carrying out fundamental studies regarding their chiral separations. Although supercritical fluid chromatography (SFC) is a viable technique for fast enantioseparations, no investigation concerning boron cluster compounds has been done yet. We aimed at the development of a straightforward method enabling chiral separations of racemic mixtures of anionic cluster carboranes and metallacarboranes that represent an analytical challenge. The fast gradient screening testing nine polysaccharide-based columns was used. The key parameters affecting the selectivity were the type of chiral selector, the type of alcohol, and the base in cosolvent. Moreover, the addition of acetonitrile or water to the cosolvent was identified as an effective tool for decreasing the analysis time while preserving the resolution. After the optimization, the chiral separations of 19 out of 20 selected compounds were achieved in less than 10 min. These results demonstrate the clear advantage of SFC over chiral separations using HPLC in terms of both analysis time and structural variety of successfully separated compounds.
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Affiliation(s)
- Ondřej Horáček
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, 500 05 Hradec Králové, Czech Republic
| | - Lucie Nováková
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 500 05 Hradec Králové, Czech Republic
| | - Ece Tüzün
- Institute of Inorganic Chemistry, Czech Academy of Sciences, 25068 Řež, Czech Republic.,Department of Inorganic Chemistry, Faculty of Science, Charles University, Prague 2, 2030 Hlavova, Czech Republic
| | - Bohumír Grüner
- Institute of Inorganic Chemistry, Czech Academy of Sciences, 25068 Řež, Czech Republic
| | - František Švec
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 500 05 Hradec Králové, Czech Republic
| | - Radim Kučera
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, 500 05 Hradec Králové, Czech Republic
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3
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Bonin L, Morvan A, Coadou G, Furman C, Boulanger E, Ghinet A, Lipka E. Supercritical fluid chromatography for separation of chiral planar metallocenes. J Chromatogr A 2022; 1674:463115. [PMID: 35597198 DOI: 10.1016/j.chroma.2022.463115] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 11/29/2022]
Abstract
Unsymmetrically disubstituted metallocene derivatives, characterized as the first sandwich structure, have found interest in asymmetrical synthesis and in medicinal chemistry as well. Besides, they present a particular case of chirality. Twenty original and six commercially available molecules presenting either i) a planar chirality or ii) an asymmetrical carbon containing group or iii) being symmetrically substituted were analyzed in supercritical fluid chromatography on eleven polysaccharide-based chiral stationary phases with carbon dioxide containing 30% of methanol or 2-propanol as a co-solvent mobile phase. A basic additive, either diethylamine, triethylamine or n-butylamine was also required at 1% to the co-solvent for elution. While some of the tested chiral stationary phases provided enantioseparation for the racemates, chlorinated cellulosic phases proved to be both highly retentive and highly enantioselective towards these particular species with the highest rate of success compared to their non-chlorinated counterparts. For instance, the resolution value was equal to 14.1 for one ferrocene derivative in one-hour analysis time on cellulose tris(3,5-dichlorophenylcarbamate) column with 30% 2-propanol/1% n-butylamine while a single peak was observed under the same conditions on cellulose tris(3,5-dimethylphenylcarbamate) column. Experimental parameters were arbitrarily set at 150 bar outlet pressure, 40 °C temperature and 3 mL/min flow-rate.
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Affiliation(s)
- Lisa Bonin
- Univ. Lille, Inserm, Institut Pasteur de Lille, U1167 - Risk factors and molecular determinants of aging-related diseases, F-59000 Lille, France; JUNIA, Health & Environment, Laboratory of Sustainable Chemistry and Health, F-59000 Lille, France; Normandie Université, INSA de Rouen, CNRS, Laboratoire COBRA (UMR 6014 & FR 3038), F-76000 Rouen, France
| | - Antoine Morvan
- Univ. Lille, Inserm, Institut Pasteur de Lille, U1167 - Risk factors and molecular determinants of aging-related diseases, F-59000 Lille, France
| | - Gael Coadou
- Normandie Université, INSA de Rouen, CNRS, Laboratoire COBRA (UMR 6014 & FR 3038), F-76000 Rouen, France
| | - Christophe Furman
- Univ. Lille, Inserm, Institut Pasteur de Lille, U1167 - Risk factors and molecular determinants of aging-related diseases, F-59000 Lille, France
| | - Eric Boulanger
- Univ. Lille, Inserm, Institut Pasteur de Lille, U1167 - Risk factors and molecular determinants of aging-related diseases, F-59000 Lille, France
| | - Alina Ghinet
- Univ. Lille, Inserm, Institut Pasteur de Lille, U1167 - Risk factors and molecular determinants of aging-related diseases, F-59000 Lille, France; JUNIA, Health & Environment, Laboratory of Sustainable Chemistry and Health, F-59000 Lille, France; Alexandru Ioan Cuza' University of Iasi, Faculty of Chemistry, Bd. Carol I nr. 11, 700506 Iasi, Romania
| | - Emmanuelle Lipka
- Univ. Lille, Inserm, Institut Pasteur de Lille, U1167 - Risk factors and molecular determinants of aging-related diseases, F-59000 Lille, France.
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4
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Vaňkátová P, Kubíčková A, Kalíková K. Enantioseparation of liquid crystals and their utilization as enantiodiscrimination materials. J Chromatogr A 2022; 1673:463074. [DOI: 10.1016/j.chroma.2022.463074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/12/2022] [Accepted: 04/15/2022] [Indexed: 11/28/2022]
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5
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Si-Hung L, Bamba T. Current state and future perspectives of supercritical fluid chromatography. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116550] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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6
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Raja R, Alam SD, Srisath V, Jain AK, ALOthman ZA, Mohammed AAA, Islam MA, Bhatt T, Ali I. A comparative study of chiral separation of proton pump inhibitors by supercritical fluid chromatography and high-performance liquid chromatography. J Sep Sci 2021; 45:804-811. [PMID: 34894085 DOI: 10.1002/jssc.202100834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/27/2021] [Accepted: 12/02/2021] [Indexed: 12/20/2022]
Abstract
A comparative study of chiral separation of pantoprazole and rabeprazole is carried out using supercritical fluid chromatography and high-performance liquid chromatography. The columns used were Chiralpak IA and Chiralpak IE. The best mobile phase in supercritical fluid chromatography was carbon dioxide-0.2% triethylamine in methanol (60:40) and 0.1% triethylamine in n-hexane-ethanol (50:50) in high-performance liquid chromatography. For supercritical fluid chromatography, values of the retention factor of pantoprazole enantiomers were 3.97 and 4.88. These values for rabeprazole enantiomers were 6.10 and 7.52. The values of separation and resolution factor for pantoprazole and rabeprazole were 1.23 and 1.23 and 2.20 and 3.36, respectively. Similarly, for high-performance liquid chromatography, the values of retention factor for enantiomers of pantoprazole were 4.02 and 7.32. These values for rabeprazole enantiomers were 5.32 and 7.88, respectively. The values of separation and resolution factor for pantoprazole and rabeprazole were 1.82 and 1.48 and 9.22 and 6.58, respectively. A comparison was carried out, which confirmed supercritical fluid chromatography as the best method due to its fastness, eco-friendly, and inexpensiveness. The reported methods are effective, efficient, and reproducible and may be used to separate and identify pantoprazole and rabeprazole in any unknown samples.
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Affiliation(s)
- Rupak Raja
- Department of Chemistry, School of Basic and Applied Sciences, Galgotias University, Greater Noida, India.,Jubilant Biosys Limited, Noida, India
| | | | | | - Arvind Kumar Jain
- Department of Chemistry, School of Basic and Applied Sciences, Galgotias University, Greater Noida, India
| | - Zeid A ALOthman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abdallah A A Mohammed
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad Ataul Islam
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine, and Health, University of Manchester, Manchester, UK
| | - Tahir Bhatt
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Imran Ali
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
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7
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Liu Y, Meng X, Zhang Y, Zhang L, Shan Y, Gu J, Sun D. High-throughput bioanalysis of sitagliptin in plasma using direct analysis in real time mass spectrometry and its application in the pharmacokinetic study thereof. J Sep Sci 2021; 45:631-637. [PMID: 34709732 DOI: 10.1002/jssc.202100461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/08/2021] [Accepted: 10/21/2021] [Indexed: 11/10/2022]
Abstract
Sitagliptin is a dipeptidyl peptidase-IV inhibitor for the treatment of type 2 diabetes mellitus. In the present study, a sensitive and high-throughput quantitative method based on the direct analysis in real time tandem mass spectrometry has been developed and validated for the bioanalysis of sitagliptin in rat plasma without chromatographic separation. Sitagliptin and its internal standard retagliptin were detected in positive ion mode by multiple reaction monitoring transitions at m/z 408.2→235.0 and 465.2→260.1, respectively. The method includes a simple solid-phase extraction sample preparation procedure, through which appropriate and reproducible analytical results within the linear concentration range of 20-2000 ng/mL have been achieved. The intra- and interday precisions were <10.6% and the accuracies were ranging from -8.17 to 2.60%. This method has been successfully applied to the pharmacokinetic study of sitagliptin after single intravenous administration in rats. This approach shows considerable promise of direct analysis in real time tandem mass spectrometry method in the high-throughput bioanalysis.
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Affiliation(s)
- Yingze Liu
- School of Pharmaceutical Sciences, Jilin University, Changchun, P. R. China.,Beijing Institute of Drug Metabolism, Beijing, P. R. China
| | - Xiangjun Meng
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China
| | - Yuyao Zhang
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China
| | - Linge Zhang
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China
| | - Yuqin Shan
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China
| | - Jingkai Gu
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China.,Beijing Institute of Drug Metabolism, Beijing, P. R. China
| | - Dong Sun
- Research Center for Drug Metabolism, School of Life Sciences, Jilin University, Changchun, P. R. China.,Key Laboratory of Molecular Pharmacology and Drug Evaluation, Yantai University, Yantai, P. R. China
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Abstract
Like many biological compounds, proteins are found primarily in their homochiral form. However, homochirality is not guaranteed throughout life. Determining their chiral proteinogenic sequence is a complex analytical challenge. This is because certain d-amino acids contained in proteins play a role in human health and disease. This is the case, for example, with d-Asp in elastin, β-amyloid and α-crystallin which, respectively, have an action on arteriosclerosis, Alzheimer’s disease and cataracts. Sequence-dependent and sequence-independent are the two strategies for detecting the presence and position of d-amino acids in proteins. These methods rely on enzymatic digestion by a site-specific enzyme and acid hydrolysis in a deuterium or tritium environment to limit the natural racemization of amino acids. In this review, chromatographic and electrophoretic techniques, such as LC, SFC, GC and CE, will be recently developed (2018–2020) for the enantioseparation of amino acids and peptides. For future work, the discovery and development of new chiral stationary phases and derivatization reagents could increase the resolution of chiral separations.
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Separation of 4C-Substituted Pyrrolidin-2-One Derivatives on Amylose-Based Chiral Stationary Phases. Chromatographia 2021. [DOI: 10.1007/s10337-021-04048-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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10
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Karongo R, Jiao J, Gross H, Lämmerhofer M. Direct enantioselective gradient reversed-phase ultra-high performance liquid chromatography tandem mass spectrometry method for 3-hydroxy alkanoic acids in lipopeptides on an immobilized 1.6 μm amylose-based chiral stationary phase. J Sep Sci 2021; 44:1875-1883. [PMID: 33666325 DOI: 10.1002/jssc.202100104] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 12/12/2022]
Abstract
3-Hydroxy fatty acids are important chiral building blocks of lipopeptides and metabolic intermediates of fatty acid oxidation, respectively. The analysis of the stereochemistry of such biomolecules has significant practical impact to elucidate and assign the enzymatic specificity of the biosynthesis machinery. In this work, a new mass spectrometry compatible direct chiral ultra high performance liquid chromatography separation method for 3-hydroxy fatty acids without derivatization is presented. The application of amylose tris(3,5-dimethylphenyl carbamate) based polysaccharide chiral stationary phase immobilized on 1.6 μm silica particles (CHIRALPAK IA-U) allows the enantioseparation of 3-hydroxy fatty acids under generic electrospray ionization mass spectrometry friendly reversed phase gradient elution conditions. Adequate separation factors were achieved with both acetonitrile and methanol as organic modifiers, covering hydrocarbon chain lengths between C6 and C14 . Elution orders were derived from rhamnolipid (R-95) of which enantiomerically pure or enriched (R)-3-hydroxy fatty acids were recovered after ester hydrolysis. The S-configured acids consistently eluted before the respective R-enantiomers. The method was successfully applied for the elucidation of the absolute configuration of 3-hydroxy fatty acids originating from a novel lipopeptide with unknown structure. The work furthermore demonstrates that gradient elution is a viable option also in enantioselective (ultra)high performance liquid chromatography, even for analytes with modest separation factors, although less commonly exploited.
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Affiliation(s)
- Ryan Karongo
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, Eberhard Karls University of Tübingen, Auf der Morgenstelle 8, Tübingen, 72076, Germany
| | - Junjing Jiao
- Institute of Pharmaceutical Sciences, Pharmaceutical Biology, Eberhard Karls University of Tübingen, Auf der Morgenstelle 8, Tübingen, 72076, Germany
| | - Harald Gross
- Institute of Pharmaceutical Sciences, Pharmaceutical Biology, Eberhard Karls University of Tübingen, Auf der Morgenstelle 8, Tübingen, 72076, Germany
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, Eberhard Karls University of Tübingen, Auf der Morgenstelle 8, Tübingen, 72076, Germany
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11
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Preparation and applications of cellulose-functionalized chiral stationary phases: A review. Talanta 2021; 225:121987. [DOI: 10.1016/j.talanta.2020.121987] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/28/2020] [Accepted: 12/05/2020] [Indexed: 12/12/2022]
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12
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Dallocchio R, Sechi B, Dessì A, Chankvetadze B, Cossu S, Mamane V, Weiss R, Pale P, Peluso P. Enantioseparations of polyhalogenated 4,4'-bipyridines on polysaccharide-based chiral stationary phases and molecular dynamics simulations of selector-selectand interactions. Electrophoresis 2021; 42:1853-1863. [PMID: 33742705 DOI: 10.1002/elps.202100049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/12/2021] [Accepted: 03/13/2021] [Indexed: 12/12/2022]
Abstract
2'-(4-Pyridyl)- and 2'-(4-hydroxyphenyl)-TCIBPs (TCIBP = 3,3',5,5'-tetrachloro-2-iodo-4,4'-bipyridyl) are chiral compounds that showed interesting inhibition activity against transthyretin fibrillation in vitro. We became interested in their enantioseparation since we noticed that the M-stereoisomer is more effective than the P-enantiomer. Based thereon, we recently reported the enantioseparation of 2'-substituted TCIBP derivatives with amylose-based chiral columns. Following this study, herein we describe the comparative enantioseparation of both 2'-(4-pyridyl)- and 2'-(4-hydroxyphenyl)-TCIBPs on four cellulose phenylcarbamate-based chiral columns aiming to explore the effect of the polymer backbone, as well as the nature and position of substituents on the side groups on the enantioseparability of these compounds. In the frame of this project, the impact of subtle variations of analyte and polysaccharide structures, and mobile phase (MP) polarity on retention and selectivity was evaluated. The effect of temperature on retention and selectivity was also considered, and overall thermodynamic parameters associated with the analyte adsorption onto the CSP surface were derived from van 't Hoff plots. Interesting cases of enantiomer elution order (EEO) reversal were observed. In particular, the EEO was shown to be dependent on polysaccharide backbone, the elution sequence of the two analytes being P-M and M-P on cellulose and amylose tris(3,5-dimethylphenylcarbamate), respectively. In this regard, a theoretical investigation based on molecular dynamics (MD) simulations was performed by using amylose and cellulose tris(3,5-dimethylphenylcarbamate) nonamers as virtual models of the polysaccharide-based selectors. This exploration at the molecular level shed light on the origin of the enantiodiscrimination processes.
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Affiliation(s)
- Roberto Dallocchio
- Istituto di Chimica Biomolecolare ICB CNR, Sede secondaria di Sassari, Sassari, Italy
| | - Barbara Sechi
- Istituto di Chimica Biomolecolare ICB CNR, Sede secondaria di Sassari, Sassari, Italy
| | - Alessandro Dessì
- Istituto di Chimica Biomolecolare ICB CNR, Sede secondaria di Sassari, Sassari, Italy
| | - Bezhan Chankvetadze
- School of Exact and Natural Sciences, Institute of Physical and Analytical Chemistry, Tbilisi State University, Tbilisi, Georgia
| | - Sergio Cossu
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia, Mestre, Venezia, Italy
| | - Victor Mamane
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, Strasbourg, France
| | - Robin Weiss
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, Strasbourg, France
| | - Patrick Pale
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, Strasbourg, France
| | - Paola Peluso
- Istituto di Chimica Biomolecolare ICB CNR, Sede secondaria di Sassari, Sassari, Italy
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Vaňkátová P, Kubíčková A, Kalíková K. How mobile phase composition and column temperature affect enantiomer elution order of liquid crystals on amylose tris(3-chloro-5-methylphenylcarbamate) as chiral selector. Electrophoresis 2021; 42:1844-1852. [PMID: 33596334 DOI: 10.1002/elps.202000350] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/08/2021] [Accepted: 02/12/2021] [Indexed: 11/10/2022]
Abstract
A comprehensive study into the effects of mobile phase composition and column temperature on enantiomer elution order was conducted with a set of chiral rod-like liquid crystalline materials. The analytes were structurally similar and comprised variances such as length of terminal alkyl chain, presence of chlorine, number of phenyl rings, and type of chiral center. Experiments were carried out in polar organic and reversed-phase modes using amylose tris(3-chloro-5-methylphenylcarbamate) immobilized on silica gel as the chiral stationary phase. For all liquid crystals, reversal of elution order of enantiomers was observed based on type of used cosolvent and/or its content in the mobile phase; for some of the liquid crystals a temperature-induced reversal was also observed. Both linear and nonlinear dependencies of natural logarithm of enantioselectivity on temperature were found. Tested mobile phases comprised pure organic solvents and binary and tertiary mixtures of acetonitrile with organic solvents and/or water. Effect of acidic/basic mobile phase additives was also tested. Effect of structure of chiral selector is briefly discussed.
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Affiliation(s)
- Petra Vaňkátová
- Department of Analytical Chemistry, Faculty of Science, Charles University, Prague, Czech Republic.,Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic
| | - Anna Kubíčková
- Department of Analytical Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Květa Kalíková
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
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14
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Folprechtová D, Kalíková K. Macrocyclic glycopeptide‐based chiral selectors for enantioseparation in sub/supercritical fluid chromatography. ACTA ACUST UNITED AC 2020. [DOI: 10.1002/ansa.202000099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Denisa Folprechtová
- Department of Physical and Macromolecular Chemistry Faculty of Science Charles University Prague Czech Republic
| | - Květa Kalíková
- Department of Physical and Macromolecular Chemistry Faculty of Science Charles University Prague Czech Republic
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15
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Liu Q, Dong F, Xu J, Liu X, Wu X, Li R, Jiang D, Wu X, Liu Y, Zheng Y. Enantioseparation and dissipation monitoring of oxathiapiprolin in grape using supercritical fluid chromatography tandem mass spectrometry. J Sep Sci 2020; 43:4077-4087. [DOI: 10.1002/jssc.202000668] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/23/2020] [Accepted: 08/24/2020] [Indexed: 01/03/2023]
Affiliation(s)
- Qianyu Liu
- College of Plant Protection Hebei Agricultural University Baoding P. R. China
- Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Biology of Plant Diseases and Insect Pests Beijing P. R. China
| | - Fengshou Dong
- Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Biology of Plant Diseases and Insect Pests Beijing P. R. China
| | - Jun Xu
- Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Biology of Plant Diseases and Insect Pests Beijing P. R. China
| | - Xingang Liu
- Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Biology of Plant Diseases and Insect Pests Beijing P. R. China
| | - Xiaohu Wu
- Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Biology of Plant Diseases and Insect Pests Beijing P. R. China
| | - Runan Li
- Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Biology of Plant Diseases and Insect Pests Beijing P. R. China
| | - Duoduo Jiang
- Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Biology of Plant Diseases and Insect Pests Beijing P. R. China
| | - Xiuming Wu
- Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Biology of Plant Diseases and Insect Pests Beijing P. R. China
| | - Yingchao Liu
- College of Plant Protection Hebei Agricultural University Baoding P. R. China
| | - Yongquan Zheng
- Institute of Plant Protection Chinese Academy of Agricultural Sciences State Key Laboratory for Biology of Plant Diseases and Insect Pests Beijing P. R. China
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