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Nguyen NVT, Nguyen KNH, Nguyen KT, Kim KH, Aboul-Enein HY. The impact of chirality on the analysis of alkaloids in plant. PHARMACIA 2021. [DOI: 10.3897/pharmacia.68.e71101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Most of the alkaloids are chiral compounds and are clinically administered as the racemic mixture, even though its enantiomers have been known to exert different pharmacological activity. The determination of the enantiomeric composition of alkaloid-containing plants is subject to severe attention from pharmacological and toxicological points of view. This review gives an overview of the chiral analysis of alkaloids that were used in theoretical studies and applications for plants in recent years.
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2
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Fan X, Cao L, Geng L, Ma Y, Wei Y, Wang Y. Polysaccharides as separation media for the separation of proteins, peptides and stereoisomers of amino acids. Int J Biol Macromol 2021; 186:616-638. [PMID: 34242648 DOI: 10.1016/j.ijbiomac.2021.07.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/29/2021] [Accepted: 07/03/2021] [Indexed: 10/20/2022]
Abstract
Reliable separation of peptides, amino acids and proteins as accurate as possible with the maximum conformation and biological activity is crucial and essential for drug discovery. Polysaccharide, as one of the most abundant natural biopolymers with optical activity on earth, is easy to be functionalized due to lots of hydroxyl groups on glucose units. Over the last few decades, polysaccharide derivatives are gradually employed as effective separation media. The highly-ordered helical structure contributes to complex, diverse molecular recognition ability, allowing polysaccharide derivatives to selectively interact with different analytes. This article reviews the development, application and prospects of polysaccharides as separation media in the separation of proteins, peptides and amino acids in recent years. The chiral molecules mechanism, advantages, limitations, development status and challenges faced by polysaccharides as separation media in molecular recognition are summarized. Meanwhile, the direction of its continued development and future prospects are also discussed.
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Affiliation(s)
- Xiao Fan
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, PR China
| | - Lilong Cao
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, PR China
| | - Linna Geng
- Department of Infrastructure Engineering, The University of Melbourne, Victoria, Australia
| | - Yalu Ma
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, PR China.
| | - Yuping Wei
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, PR China; Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, PR China.
| | - Yong Wang
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300354, PR China.
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3
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Lee JU, Lee SS, Lee S, Oh HB. Noncovalent Complexes of Cyclodextrin with Small Organic Molecules: Applications and Insights into Host-Guest Interactions in the Gas Phase and Condensed Phase. Molecules 2020; 25:molecules25184048. [PMID: 32899713 PMCID: PMC7571109 DOI: 10.3390/molecules25184048] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/29/2020] [Accepted: 09/02/2020] [Indexed: 12/13/2022] Open
Abstract
Cyclodextrins (CDs) have drawn a lot of attention from the scientific communities as a model system for host–guest chemistry and also due to its variety of applications in the pharmaceutical, cosmetic, food, textile, separation science, and essential oil industries. The formation of the inclusion complexes enables these applications in the condensed phases, which have been confirmed by nuclear magnetic resonance (NMR) spectroscopy, X-ray crystallography, and other methodologies. The advent of soft ionization techniques that can transfer the solution-phase noncovalent complexes to the gas phase has allowed for extensive examination of these complexes and provides valuable insight into the principles governing the formation of gaseous noncovalent complexes. As for the CDs’ host–guest chemistry in the gas phase, there has been a controversial issue as to whether noncovalent complexes are inclusion conformers reflecting the solution-phase structure of the complex or not. In this review, the basic principles governing CD’s host–guest complex formation will be described. Applications and structures of CDs in the condensed phases will also be presented. More importantly, the experimental and theoretical evidence supporting the two opposing views for the CD–guest structures in the gas phase will be intensively reviewed. These include data obtained via mass spectrometry, ion mobility measurements, infrared multiphoton dissociation (IRMPD) spectroscopy, and density functional theory (DFT) calculations.
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Affiliation(s)
- Jae-ung Lee
- Department of Chemistry, Sogang University, Seoul 04107, Korea;
| | - Sung-Sik Lee
- Department of Applied Chemistry, Kyung Hee University, Gyeonggi 17104, Korea;
| | - Sungyul Lee
- Department of Applied Chemistry, Kyung Hee University, Gyeonggi 17104, Korea;
- Correspondence: (S.L.); (H.B.O.); Tel.: +82-31-201-2423 (S.L.); +82-2-705-8444 (H.B.O.)
| | - Han Bin Oh
- Department of Chemistry, Sogang University, Seoul 04107, Korea;
- Correspondence: (S.L.); (H.B.O.); Tel.: +82-31-201-2423 (S.L.); +82-2-705-8444 (H.B.O.)
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4
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Li Y, Lin X, Qin S, Gao L, Tang Y, Liu S, Wang Y. β‐Cyclodextrin‐modified covalent organic framework as chiral stationary phase for the separation of amino acids and β‐blockers by capillary electrochromatography. Chirality 2020; 32:1008-1019. [DOI: 10.1002/chir.23227] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/14/2020] [Accepted: 03/20/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Yingjie Li
- College of Chemistry and Chemical EngineeringQiqihar University Qiqihar Heilongjiang China
| | - Xiaotong Lin
- College of Chemistry and Chemical EngineeringQiqihar University Qiqihar Heilongjiang China
| | - Shili Qin
- College of Chemistry and Chemical EngineeringQiqihar University Qiqihar Heilongjiang China
| | - Lidi Gao
- College of Chemistry and Chemical EngineeringQiqihar University Qiqihar Heilongjiang China
| | - Yimin Tang
- College of Chemistry and Chemical EngineeringQiqihar University Qiqihar Heilongjiang China
| | - Shuren Liu
- College of Environmental and Resource SciencesZhejiang University Hangzhou China
| | - Yuanyuan Wang
- College of Chemistry and Chemical EngineeringQiqihar University Qiqihar Heilongjiang China
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5
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Abstract
High-performance liquid chromatography (HPLC) is one of the main separation techniques for chiral drugs. Among the chiral HPLC techniques available, the chiral mobile-phase additive (CMPA) technique is a valuable method for the direct enantioseparation of chiral chemical entities. In the CMPA method, the chiral selector is dissolved in the mobile phase while the stationary phase is achiral. Interaction with the analyte enantiomers results in the formation of transient diastereomeric complexes. These complexes differ in their formation constants and/or distribution between the (achiral) stationary phase and the mobile phase resulting in an enantioseparation. This chapter describes the HPLC separation applying CMPA methods by several most useful types of chiral selectors including chiral ligand exchangers, macrocyclic antibiotics, and cyclodextrins.
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Affiliation(s)
- Lushan Yu
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Shengjia Wang
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Su Zeng
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China.
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6
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Recognition of Pharmacological Bi-Heterocyclic Compounds by Using Terahertz Time Domain Spectroscopy and Chemometrics. SENSORS 2019; 19:s19153349. [PMID: 31366175 PMCID: PMC6696483 DOI: 10.3390/s19153349] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 07/20/2019] [Accepted: 07/27/2019] [Indexed: 12/22/2022]
Abstract
In this study, we presented the concept and implementation of a fully functional system for the recognition of bi-heterocyclic compounds. We have conducted research into the application of machine learning methods to correctly recognize compounds based on THz spectra, and we have described the process of selecting optimal parameters for the kernel support vector machine (KSVM) with an additional `unknown' class. The chemical compounds used in the study contain a target molecule, used in pharmacy to combat inflammatory states formed in living organisms. Ready-made medical products with similar properties are commonly referred to as non-steroidal anti-inflammatory drugs (NSAIDs) once authorised on the pharmaceutical market. It was crucial to clearly determine whether the tested sample is a chemical compound known to researchers or is a completely new structure which should be additionally tested using other spectrometric methods. Our approach allows us to achieve 100% accuracy of the classification of the tested chemical compounds in the time of several milliseconds counted for 30 samples of the test set. It fits perfectly into the concept of rapid recognition of bi-heterocyclic compounds without the need to analyse the percentage composition of compound components, assuming that the sample is classified in a known group. The method allows us to minimize testing costs and significant reduction of the time of analysis.
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Teixeira J, Tiritan ME, Pinto MMM, Fernandes C. Chiral Stationary Phases for Liquid Chromatography: Recent Developments. Molecules 2019; 24:E865. [PMID: 30823495 PMCID: PMC6429359 DOI: 10.3390/molecules24050865] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 02/17/2019] [Accepted: 02/26/2019] [Indexed: 12/13/2022] Open
Abstract
The planning and development of new chiral stationary phases (CSPs) for liquid chromatography (LC) are considered as continuous and evolutionary issues since the introduction of the first CSP in 1938. The main objectives of the development strategies were to attempt the improvement of the chromatographic enantioresolution performance of the CSPs as well as enlarge their versatility and range of applications. Additionally, the transition to ultra-high-performance LC were underscored. The most recent strategies have comprised the introduction of new chiral selectors, the use of new materials as chromatographic supports or the reduction of its particle size, and the application of different synthetic approaches for preparation of CSPs. This review gathered the most recent developments associated to the different types of CSPs providing an overview of the relevant advances that are arising on LC.
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Affiliation(s)
- Joana Teixeira
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Maria Elizabeth Tiritan
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
- Cooperativa de Ensino Superior, Politécnico e Universitário (CESPU), Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra PRD, Portugal.
| | - Madalena M M Pinto
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
| | - Carla Fernandes
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
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8
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TODOROKI K, KUDOH Y, NAKAMURA M, SHIMIZU Y, SASAKI T, OTSUKI H, WADA K, MIN JZ, MIZUNO H, YOSHINARI K, TOYO’OKA T. Sensitive and Comprehensive LC-MS/MS Analyses of Chiral Pharmaceuticals and Their Hepatic Metabolites Using Ovomucoid Column. ANAL SCI 2018; 34:1011-1015. [DOI: 10.2116/analsci.18scp05] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Kenichiro TODOROKI
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Yuto KUDOH
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Misuzu NAKAMURA
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Yuki SHIMIZU
- Laboratory of Molecular Toxicology, School of Pharmaceutical Sciences, University of Shizuoka
| | - Takamitsu SASAKI
- Laboratory of Molecular Toxicology, School of Pharmaceutical Sciences, University of Shizuoka
| | | | | | - Jun Zhe MIN
- Key Laboratory for Natural Resource of Changbai Mountain & Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University
| | - Hajime MIZUNO
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Kouichi YOSHINARI
- Laboratory of Molecular Toxicology, School of Pharmaceutical Sciences, University of Shizuoka
| | - Toshimasa TOYO’OKA
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka
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9
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Khatib A, Wilson EG, Zhang HR, Supardi M, Verpoorte R. The Application of β-Cyclodextrin to Separate cis- from trans-Iso-α-Acids in an Isomerized Hop Extract. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2018. [DOI: 10.1094/asbcj-2009-1111-01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Alfi Khatib
- Center of Excellence for Food Safety Research, Faculty of Food Science and Technology, University Putra Malaysia, Selangor Darul Ehsan, Malaysia
- Department of Food Science and Technology, Bogor Agricultural University, Bogor, Indonesia
| | - Erica G. Wilson
- Division of Pharmacognosy, Section of Metabolomics, Institute of Biology, Leiden University, Leiden, The Netherlands
| | - Hai Rong Zhang
- Division of Pharmacognosy, Section of Metabolomics, Institute of Biology, Leiden University, Leiden, The Netherlands
| | - Moses Supardi
- Division of Pharmacognosy, Section of Metabolomics, Institute of Biology, Leiden University, Leiden, The Netherlands
| | - Robert Verpoorte
- Division of Pharmacognosy, Section of Metabolomics, Institute of Biology, Leiden University, Leiden, The Netherlands
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10
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Silva M, Pérez-Quintanilla D, Morante-Zarcero S, Sierra I, Marina ML, Aturki Z, Fanali S. Ordered mesoporous silica functionalized with β-cyclodextrin derivative for stereoisomer separation of flavanones and flavanone glycosides by nano-liquid chromatography and capillary electrochromatography. J Chromatogr A 2017; 1490:166-176. [DOI: 10.1016/j.chroma.2017.02.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/06/2017] [Accepted: 02/07/2017] [Indexed: 02/06/2023]
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11
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Chromatographic Characterization of a New Cationic β-CD Based Stationary Phase Prepared by Dynamic Coating. Chromatographia 2016. [DOI: 10.1007/s10337-016-3050-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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12
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Bao JJ, Jia F, Li Y, Liang Q, Wang Y. Synthesis and applications of sulfopropyl ether γ-cyclodextrin polymer as chiral selector in capillary electrophoresis. Anal Bioanal Chem 2016; 408:3639-49. [PMID: 26993309 DOI: 10.1007/s00216-016-9452-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 02/14/2016] [Accepted: 02/25/2016] [Indexed: 12/26/2022]
Abstract
A novel sulfopropyl ether γ-cyclodextrin polymer (SPE-γ-CDP) through polycondensating sulfated cyclodextrins (SCDs) was synthesized. This synthesis approach also has the potential of preparing other derived cyclodextrins (CDs) polymers. The polymerized SCDs took on both the properties of SCDs and certain characteristics of polymers, such as chiral selectivity and high viscosity. Synthesis parameters, including reactions sequence, sulfation, and polycondensation conditions were investigated systematically. The product was characterized by elemental analysis, infrared spectroscopy (IR), and indirect UV detections prior to use as background electrolytes additive. The separation conditions, including the concentration of SPE-γ-CDP, the concentration and pH of running buffer, separation voltage, as well as the additional organic solution were optimized during chiral separation of neutral, acidic, and basic enantiomers in capillary electrophoresis (CE). SPE-γ-CDP was proven to be an effective chiral resolving agent in CE with the advantages of simple synthesis process, low cost, similar ratio of charge-to-mass, low current, great reproducibility, and reusability. Graphical Abstract Synthesis and applications of sulfopropyl ether γ-cyclodextrin polymer.
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Affiliation(s)
- James J Bao
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, China
| | - Feifei Jia
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, China
| | - Youxin Li
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, China.
| | - Qinggang Liang
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, China
| | - Yan Wang
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, China
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13
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Enantioseparation of Citalopram by RP-HPLC, Using Sulfobutyl Ether-β-Cyclodextrin as a Chiral Mobile Phase Additive. Int J Anal Chem 2016; 2016:1231386. [PMID: 26880921 PMCID: PMC4736382 DOI: 10.1155/2016/1231386] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 12/15/2015] [Indexed: 12/02/2022] Open
Abstract
Enantiomeric separation of citalopram (CIT) was developed using a reversed phase HPLC (RP-HPLC) with sulfobutylether-β-cyclodextrin (SBE-β-CD) as a chiral mobile phase additive. The effects of the pH value of aqueous buffer, concentration of chiral additive, composition of mobile phase, and column temperature on the enantioseparation of CIT were investigated on the Hedera ODS-2 C18 column (250 mm × 4.6 mm × 5.0 um). A satisfactory resolution was achieved at 25°C using a mobile phase consisting of a mixture of aqueous buffer (pH of 2.5, 5 mM sodium dihydrogen phosphate, and 12 mM SBE-β-CD), methanol, and acetonitrile with a volumetric ratio of 21 : 3 : 1 and flow rate of 1.0 mL/min. This analytical method was evaluated by examining the precision (lower than 3.0%), linearity (regression coefficients close to 1), limit of detection (0.070 µg/mL for (R)-CIT and 0.076 µg/mL for (S)-CIT), and limit of quantitation (0.235 µg/mL for (R)-CIT and 0.254 µg/mL for (S)-CIT).
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14
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Todoroki K, Ishii Y, Ide T, Min JZ, Inoue K, Huang X, Zhang W, Hamashima Y, Toyo’oka T. Advanced dress-up chiral columns: New removable chiral stationary phases for enantioseparation of chiral carboxylic acids. Anal Chim Acta 2015; 882:101-11. [DOI: 10.1016/j.aca.2015.03.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 03/16/2015] [Accepted: 03/24/2015] [Indexed: 01/14/2023]
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15
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Zandkarimi M, Tabrizian K, Darbandi MA, Dahmardeh S. EFFECT OF CYCLODEXTRINS ON THE STABILITY OF BILAYER: A NOVEL ELECTROPHORETIC APPROACH. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2013.840840] [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)
- M. Zandkarimi
- a School of Pharmacy , Zabol University of Medical Sciences , Zabol , Iran
| | - Kaveh Tabrizian
- a School of Pharmacy , Zabol University of Medical Sciences , Zabol , Iran
| | | | - Somayeh Dahmardeh
- a School of Pharmacy , Zabol University of Medical Sciences , Zabol , Iran
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16
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Al-Hussin A, Boysen RI, Saito K, Hearn MT. Preparation and electrochromatographic characterization of new chiral β-cyclodextrin poly(acrylamidopropyl) porous layer open tubular capillary columns. J Chromatogr A 2014; 1358:199-207. [DOI: 10.1016/j.chroma.2014.06.067] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 06/19/2014] [Accepted: 06/19/2014] [Indexed: 11/16/2022]
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17
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Huang G, Ou J, Zhang X, Ji Y, Peng X, Zou H. Synthesis of novel perphenylcarbamated β-cyclodextrin based chiral stationary phases via thiol-ene click chemistry. Electrophoresis 2014; 35:2752-8. [DOI: 10.1002/elps.201400248] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Revised: 07/01/2014] [Accepted: 07/01/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Guang Huang
- CAS Key Laboratory of Separation Science for Analytical Chemistry; National Chromatographic R&A Center, Dalian Institute of Chemical Physics; Chinese Academy of Sciences (CAS); Dalian P. R. China
- University of Chinese Academy of Sciences; Beijing P. R. China
- State Key Laboratory of Fine Chemicals and Department of Analytical Chemistry; Dalian University of Technology; Dalian P. R. China
| | - Junjie Ou
- CAS Key Laboratory of Separation Science for Analytical Chemistry; National Chromatographic R&A Center, Dalian Institute of Chemical Physics; Chinese Academy of Sciences (CAS); Dalian P. R. China
| | - Xiaodan Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry; National Chromatographic R&A Center, Dalian Institute of Chemical Physics; Chinese Academy of Sciences (CAS); Dalian P. R. China
| | - Yongsheng Ji
- CAS Key Laboratory of Separation Science for Analytical Chemistry; National Chromatographic R&A Center, Dalian Institute of Chemical Physics; Chinese Academy of Sciences (CAS); Dalian P. R. China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals and Department of Analytical Chemistry; Dalian University of Technology; Dalian P. R. China
| | - Hanfa Zou
- CAS Key Laboratory of Separation Science for Analytical Chemistry; National Chromatographic R&A Center, Dalian Institute of Chemical Physics; Chinese Academy of Sciences (CAS); Dalian P. R. China
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18
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Szente L, Szemán J. Cyclodextrins in Analytical Chemistry: Host–Guest Type Molecular Recognition. Anal Chem 2013; 85:8024-30. [DOI: 10.1021/ac400639y] [Citation(s) in RCA: 192] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lajos Szente
- CYCLOLAB, Cyclodextrin Research and Development Laboratory Ltd., H-1097 Budapest, Illatos út
7, Hungary
| | - Julianna Szemán
- CYCLOLAB, Cyclodextrin Research and Development Laboratory Ltd., H-1097 Budapest, Illatos út
7, Hungary
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19
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Wu H, Li K, Yu H, Ke Y, Liang X. Investigation of peptoid chiral stationary phases varied in absolute configuration. J Chromatogr A 2013; 1281:155-9. [DOI: 10.1016/j.chroma.2013.01.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 01/17/2013] [Accepted: 01/17/2013] [Indexed: 10/27/2022]
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20
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Abstract
In recent years, high performance liquid chromatography (HPLC) has become one of the main separation techniques for chiral drugs. Among the chiral HPLC techniques available, the chiral mobile phase additive (CMPA) technique is a valuable method for the direct enantioseparation of chiral chemical entities. In the CMPA method, the chiral selector is dissolved in the mobile phase while the stationary phase is achiral. Interaction with the analyte enantiomers results in the formation of transient diastereomeric complexes. These complexes differ in their formation constants and/or distribution between the (achiral) stationary phase and the mobile phase resulting in an enantioseparation. This chapter describes the HPLC separation applying CMPA methods by several most useful types of chiral selectors including chiral ligand exchangers, macrocyclic antibiotics, and cyclodextrins.
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Affiliation(s)
- Lushan Yu
- Department of Pharmaceutical Analysis and Drug Metabolism, Zhejiang University, Hangzhou, China
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21
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Ai F, Wang Y, Chen H, Yang Y, Yang Tan TT, Ng SC. Enantioselective separation of dansyl-dl-amino acids and some racemates on “click” functionalized native α-cyclodextrin based sub-2 μm columns. Analyst 2013; 138:2289-94. [DOI: 10.1039/c3an36125j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Wu H, Song G, Liang X, Ke Y. Investigation of Peptoid Chiral Stationary Phases Terminated withN′-Substituted Phenyl-L-proline/leucine Amide. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201201041] [Citation(s) in RCA: 4] [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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23
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Ngim KK, Zhong Q, Mistry K, Chetwyn N. EFFECT OF SULFOBUTYL ETHER BETA-CYCLODEXTRIN MODIFIER ON SELECTIVITY OF REVERSED PHASE HPLC SEPARATIONS. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.639116] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Kenley K. Ngim
- a Small Molecule Analytical Chemistry & Quality Control, Genentech, Inc. , S. San Francisco , California , USA
| | - Qiqing Zhong
- a Small Molecule Analytical Chemistry & Quality Control, Genentech, Inc. , S. San Francisco , California , USA
| | - Kavita Mistry
- a Small Molecule Analytical Chemistry & Quality Control, Genentech, Inc. , S. San Francisco , California , USA
| | - Nik Chetwyn
- a Small Molecule Analytical Chemistry & Quality Control, Genentech, Inc. , S. San Francisco , California , USA
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24
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Comparison of separation performances of novel β-cyclodextrin-based chiral stationary phases in high-performance liquid chromatographic enantioseparation. J Pharm Biomed Anal 2012; 70:71-6. [DOI: 10.1016/j.jpba.2012.05.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 05/17/2012] [Accepted: 05/20/2012] [Indexed: 11/18/2022]
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25
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Development of chiral stationary phases for high-performance liquid chromatographic separation. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2012.07.006] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Wang RQ, Ong TT, Ng SC. Chemically bonded cationic β-cyclodextrin derivatives as chiral stationary phases for enantioseparation applications. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.02.105] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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27
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Wang RQ, Ong TT, Tang W, Ng SC. Cationic cyclodextrins chemically-bonded chiral stationary phases for high-performance liquid chromatography. Anal Chim Acta 2012; 718:121-9. [PMID: 22305907 DOI: 10.1016/j.aca.2011.12.063] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 12/13/2011] [Accepted: 12/24/2011] [Indexed: 10/14/2022]
Abstract
Two covalently bonded cationic β-CD chiral stationary phases (CSPs) prepared by graft polymerization of 6(A)-(3-vinylimidazolium)-6-deoxyperphenylcarbamate-β-cyclodextrin chloride or 6(A)-(N,N-allylmethylammonium)-6-deoxyperphenylcarbamoyl-β-cyclodextrin chloride onto silica gel were successfully applied in high-performance liquid chromatography (HPLC). Their enantioseparation capability was examined with 12 racemic pharmaceuticals and 6 carboxylic acids. The results indicated that imidazolium-containing β-CD CSP afforded more favorable enantioseparations than that containing ammonium moiety under normal-phase HPLC. The cationic moiety on β-CD CSPs could form strong hydrogen bonding with analytes in normal-phase liquid chromatography (NPLC) to enhance the analytes' retention and enantioseparations. In reversed-phase liquid chromatography (RPLC), the analytes exhibited their maximum retention when the pH of mobile phase was close to their pK(a) value. Inclusion complexation with CD cavity and columbic/ionic interactions with cationic substituent on the CD rim would afford accentuated retention and enantioseparations of the analytes.
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Affiliation(s)
- Ren-Qi Wang
- Division of Chemical and Biomolecular Engineering, College of Engineering, Nanyang Technological University, Singapore, Singapore
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28
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de Jesus LI, Albuquerque NCP, Borges KB, Simões RA, Calixto LA, Furtado NAJC, de Gaitani CM, Pupo MT, de Oliveira ARM. Enantioselective fungal biotransformation of risperidone in liquid culture medium by capillary electrophoresis and hollow fiber liquid-phase microextraction. Electrophoresis 2011; 32:2765-75. [DOI: 10.1002/elps.201100328] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2011] [Revised: 07/02/2011] [Accepted: 07/04/2011] [Indexed: 11/09/2022]
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29
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Enhanced chiral recognition by cyclodextrin dimers. Int J Mol Sci 2011; 12:4637-46. [PMID: 21845101 PMCID: PMC3155374 DOI: 10.3390/ijms12074637] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 07/07/2011] [Accepted: 07/08/2011] [Indexed: 12/22/2022] Open
Abstract
In this article we investigate the effect of multivalency in chiral recognition. To this end, we measured the host-guest interaction of a β-cyclodextrin dimer with divalent chiral guests. We report the synthesis of carbohydrate-based water soluble chiral guests functionalized with two borneol, menthol, or isopinocampheol units in either (+) or (−) configuration. We determined the interaction of these divalent guests with a β-cyclodextrin dimer using isothermal titration calorimetry. It was found that—in spite of a highly unfavorable conformation—the cyclodextrin dimer binds to guest dimers with an increased enantioselectivity, which clearly reflects the effect of multivalency.
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Svobodová J, Dubský P, Tesařová E, Gaš B. Accuracy and sensitivity of the determination of rate constants of interconversion in achiral and chiral environments by dynamic enantioselective electrophoresis. Electrophoresis 2011; 32:595-603. [DOI: 10.1002/elps.201000478] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Revised: 10/22/2010] [Accepted: 11/04/2010] [Indexed: 11/10/2022]
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31
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B’Hymer C. Evaluation and validation of an HPLC procedure for the determination of the positional isomeric impurity in 2-[4-(1-hydroxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-butyl)-phenyl]-2-methylpropionic acid. JOURNAL OF ANALYTICAL CHEMISTRY 2011. [DOI: 10.1134/s1061934808040114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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32
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Wang Y, Chung TS, Wang H. Polyamide-imide membranes with surface immobilized cyclodextrin for butanol isomer separation via pervaporation. AIChE J 2010. [DOI: 10.1002/aic.12360] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Khatib A, Wilson EG, Supardi M, Verpoorte R. Isolation of individual hop iso-α-acids stereoisomers by β-cyclodextrin. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.06.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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34
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Tong MY, Payagala T, Perera S, MacDonnell FM, Armstrong DW. Study of a new chiral selector: Sodium arsenyl-(l)-(+) tartrate for capillary electrophoresis. J Chromatogr A 2010; 1217:1139-48. [DOI: 10.1016/j.chroma.2009.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2009] [Revised: 08/27/2009] [Accepted: 09/02/2009] [Indexed: 10/20/2022]
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35
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Wang Y, Chung TS, Wang H, Goh SH. Butanol isomer separation using polyamide–imide/CD mixed matrix membranes via pervaporation. Chem Eng Sci 2009. [DOI: 10.1016/j.ces.2009.08.034] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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36
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Hamoudi M, Trichard L, Grossiord JL, Chaminade P, Duchêne D, Le Bas G, Fattal E, Bochot A. Interactions entre les cyclodextrines et les triglycérides : de la stabilisation des émulsions à l’obtention d’un nouveau système galénique appelé « billes ». ANNALES PHARMACEUTIQUES FRANÇAISES 2009; 67:391-8. [DOI: 10.1016/j.pharma.2009.08.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Revised: 08/25/2009] [Accepted: 08/28/2009] [Indexed: 11/27/2022]
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37
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Lämmerhofer M. Chiral recognition by enantioselective liquid chromatography: mechanisms and modern chiral stationary phases. J Chromatogr A 2009; 1217:814-56. [PMID: 19906381 DOI: 10.1016/j.chroma.2009.10.022] [Citation(s) in RCA: 514] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2009] [Revised: 09/30/2009] [Accepted: 10/07/2009] [Indexed: 11/19/2022]
Abstract
An overview of the state-of-the-art in LC enantiomer separation is presented. This tutorial review is mainly focused on mechanisms of chiral recognition and enantiomer distinction of popular chiral selectors and corresponding chiral stationary phases including discussions of thermodynamics, additivity principle of binding increments, site-selective thermodynamics, extrathermodynamic approaches, methods employed for the investigation of dominating intermolecular interactions and complex structures such as spectroscopic methods (IR, NMR), X-ray diffraction and computational methods. Modern chiral stationary phases are discussed with particular focus on those that are commercially available and broadly used. It is attempted to provide the reader with vivid images of molecular recognition mechanisms of selected chiral selector-selectand pairs on basis of solid-state X-ray crystal structures and simulated computer models, respectively. Such snapshot images illustrated in this communication unfortunately cannot account for the molecular dynamics of the real world, but are supposed to be helpful for the understanding. The exploding number of papers about applications of various chiral stationary phases in numerous fields of enantiomer separations is not covered systematically.
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Affiliation(s)
- Michael Lämmerhofer
- Christian Doppler Laboratory for Molecular Recognition Materials, Department of Analytical Chemistry and Food Chemistry, University of Vienna, Waehringer Strasse 38, A-1090 Vienna, Austria.
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38
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New high-performance liquid chromatography method for the determination of (R)-warfarin and (S)-warfarin using chiral separation on a glycopeptide-based stationary phase. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:3226-30. [DOI: 10.1016/j.jchromb.2009.07.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2009] [Revised: 06/23/2009] [Accepted: 07/07/2009] [Indexed: 11/19/2022]
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39
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Qi L, Yang G. Enantioseparation of dansyl amino acids by ligand-exchange capillary electrophoresis with zinc(II)-L
-phenylalaninamide complex. J Sep Sci 2009; 32:3209-14. [DOI: 10.1002/jssc.200900328] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Si-Ahmed K, Tazerouti F, Badjah-Hadj-Ahmed AY, Aturki Z, D'Orazio G, Rocco A, Fanali S. Optical isomer separation of flavanones and flavanone glycosides by nano-liquid chromatography using a phenyl-carbamate-propyl-beta-cyclodextrin chiral stationary phase. J Chromatogr A 2009; 1217:1175-82. [PMID: 19699481 DOI: 10.1016/j.chroma.2009.07.053] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2009] [Revised: 07/23/2009] [Accepted: 07/27/2009] [Indexed: 11/17/2022]
Abstract
In this paper a phenyl-carbamate-propyl-beta-cyclodextrin stationary phase was employed for the enantioseparation of several flavonoids, including flavanones and methoxyflavanones by using nano-liquid chromatography (nano-LC). The same stationary phase was also used for the diastereoisomeric separation of two flavanone glycosides. The compounds: flavanone, 2'-hydroxyflavanone, 4'-hydroxyflavanone, 6-hydroxyflavanone, 7-hydroxyflavanone, 4'-methoxyflavanone, 6-methoxyflavanone, 7-methoxyflavanone, hesperetin, hesperidin, naringenin and naringin were studied using reversed, polar organic and normal elution modes. The effect of the nature and composition of the mobile phase (organic modifier type, buffer and water content in the reversed phase mode) on the enantioresolution (R(s)), retention factor (k) and enantioselectivity (alpha) were investigated. Baseline resolution of all studied flavonoids, with the exception of 2'-hydroxyflavanone and naringin, was achieved in reversed phase mode using a mixture of MeOH/H(2)O at different ratios as mobile phase. Good results, in terms of peak efficiency and short analysis time, were obtained adding 1% triethylammonium acetate pH 4.5 buffer to MeOH/H(2)O mixture. The separation of the studied compounds was also performed in polar organic mode. By using 100% of MeOH as mobile phase, the resolution was achieved for the studied analytes, except for 7-hydroxyflavanone, 2'-hydroxyflavanone, naringenin, hesperidin and naringin. Normal mode was tested employing a mixture of EtOH/hexane/TFA as mobile phase achieving the enantiomeric and diastereomeric separation of only hesperetin and hesperidin, respectively. The use of nano-LC technique for the resolution of flavanones optical isomers allowed to achieve good resolutions in shorter analysis time compared to the results reported in literature with conventional HPLC.
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Affiliation(s)
- Kahina Si-Ahmed
- Institute of Chemical Methodologies, Italian National Council of Research, Area della Ricerca di Roma, Via Salaria Km 29, 300-00015 Monterotondo Scalo, Rome, Italy
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41
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Morin P. [Separation of chiral pharmaceutical drugs by chromatographic and electrophoretic techniques]. ANNALES PHARMACEUTIQUES FRANÇAISES 2009; 67:241-50. [PMID: 19596097 DOI: 10.1016/j.pharma.2009.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 03/16/2009] [Accepted: 03/24/2009] [Indexed: 10/20/2022]
Abstract
SUMMARY A large number of pharmaceutical drugs possess one or more centers of asymmetry giving rise to enantiomers whose pharmacological properties and toxicity are often different. At successive stages of drug discovery, the enantiomers of any chiral molecule must be isolated and analyzed and their enantiomeric purity determined. The electrophoretic and chromatographic techniques have become the most important tools to routinely determine the enantiomeric purity of pharmaceutical molecules. Liquid chromatography (LC) is the most widely used because of the large number of columns marketed, the variety of selectivities available and the ease at which analytical results can be scaled up to the preparative level. In particular, more than 80% of enantioseparations of pharmaceutical molecules are successful with polysaccharide-derivative stationary phases (cellulose, amylose) for multiple system solvents (normal phase, polar organic phase or reverse phase). Complementary selectivities can be achieved more rapidly with other types of stationary phase (glycopeptides, Pirkle, cyclodextrins) but their application is hindered by problems of stability (proteins) or transfer to the preparative scale (cyclodextrins). At the present time, glycopeptide phases offer very promising prospects for the separation of amino acids (and derivatives) and peptide enantiomers. In addition, because of its faster analysis and environmental benefits, supercritical chromatography (SFC) has given rise to renewed interest. Capillary electrophoresis (CE) is an orthogonal technique complementary to chromatographic methods. Its principle involves the formation of diastereoisomer complexes after addition of anionic (HS-beta-CD, HS-gamma-CD CM-beta-CD) or neutral (TM-beta -CD, HP-beta-CD, DM-beta-CD, HP-gamma-CD) cyclodextrins to the running buffer. Compared to LC, CE analyses are cheaper (no chiral column, no solvent, low consumption of chiral selector) and peak efficiencies are higher by one order of magnitude. Furthermore, the mechanism of separation in CE is much simpler to understand and predict. However, the low capacity of CD column prevents its use at the preparative scale and consequently hampers its development as an analytical technique. Today, the increasing number of new drug candidate molecules produced daily, and for which the determination of enantiomeric purity is required before further development, encourages the pharmaceutical industry to seek fast chiral analysis methods based on simple protocols. The speed of analysis is more important than resolution. Thus, screening strategies are implemented with HPLC, SFC and CE including the selection of a limited number of chiral selectors with strong powers of chiral recognition.
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Affiliation(s)
- P Morin
- CNRS UMR 6005, Institut de Chimie Organique et Analytique, Université d'Orléans, 45067 Orléans cedex 2, France.
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42
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Enantiomeric separation of acidic compounds by nano-liquid chromatography with methylated-β-cyclodextrin as a mobile phase additive. J Sep Sci 2009; 32:1696-703. [DOI: 10.1002/jssc.200800667] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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43
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Liu Y, Fu X, Ma C, Zhong J, Liao Y, Liu H. Chiral separation of raltitrexed by cyclodextrin-modified micellar electrokinetic chromatography. Anal Bioanal Chem 2008; 393:321-6. [DOI: 10.1007/s00216-008-2444-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2008] [Revised: 09/29/2008] [Accepted: 09/30/2008] [Indexed: 10/21/2022]
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44
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de Santana FJM, Lanchote VL, Bonato PS. Capillary electrophoretic chiral determination of mirtazapine and its main metabolites in human urine after enzymatic hydrolysis. Electrophoresis 2008; 29:3924-32. [DOI: 10.1002/elps.200800053] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Vera Lúcia Lanchote
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Pierina Sueli Bonato
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
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Ghassempour A, Alizadeh R, Najafi NM, Karami A, Römpp A, Spengler B, Aboul-Enein HY. Crystalline degradation products of vancomycin as chiral stationary phase in microcolumn liquid chromatography. J Sep Sci 2008; 31:2339-45. [DOI: 10.1002/jssc.200800185] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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46
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Chen QC, Jeong SJ, Hwang GS, Kim KH, Kang JS. Enantioselective determination of chlorpheniramine in various formulations by HPLC using carboxymethyl-β-cyclodextrin as a chiral additive. Arch Pharm Res 2008; 31:523-9. [DOI: 10.1007/s12272-001-1188-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2007] [Indexed: 11/28/2022]
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47
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Ikegami T, Tomomatsu K, Takubo H, Horie K, Tanaka N. Separation efficiencies in hydrophilic interaction chromatography. J Chromatogr A 2008; 1184:474-503. [PMID: 18294645 DOI: 10.1016/j.chroma.2008.01.075] [Citation(s) in RCA: 331] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2007] [Revised: 01/30/2008] [Accepted: 01/30/2008] [Indexed: 11/19/2022]
Abstract
Hydrophilic interaction chromatography (HILIC) is important for the separation of highly polar substances including biologically active compounds, such as pharmaceutical drugs, neurotransmitters, nucleosides, nucleotides, amino acids, peptides, proteins, oligosaccharides, carbohydrates, etc. In the HILIC mode separation, aqueous organic solvents are used as mobile phases on more polar stationary phases that consist of bare silica, and silica phases modified with amino, amide, zwitterionic functional group, polyols including saccharides and other polar groups. This review discusses the column efficiency of HILIC materials in relation to solute and stationary phase structures, as well as comparisons between particle-packed and monolithic columns. In addition, a literature review consisting of 2006-2007 data is included, as a follow up to the excellent review by Hemström and Irgum.
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Affiliation(s)
- Tohru Ikegami
- Department of Biomolecular Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
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48
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Pham DT, Clements P, Easton CJ, Lincoln SF. 1H NMR studies of enantioselective host–guest complexation by modified β-cyclodextrins and their europium(III) complexes. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2007.12.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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49
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Wang Z, Ouyang J, Baeyens WR. Recent developments of enantioseparation techniques for adrenergic drugs using liquid chromatography and capillary electrophoresis: A review. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 862:1-14. [DOI: 10.1016/j.jchromb.2007.11.034] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Revised: 10/20/2007] [Accepted: 11/23/2007] [Indexed: 10/22/2022]
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50
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Ong TT, Wang RQ, Muderawan IW, Ng SC. Synthesis and application of mono-6-(3-methylimidazolium)-6-deoxyperphenylcarbamoyl-β-cyclodextrin chloride as chiral stationary phases for high-performance liquid chromatography and supercritical fluid chromatography. J Chromatogr A 2008; 1182:136-40. [DOI: 10.1016/j.chroma.2007.12.072] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2007] [Revised: 12/10/2007] [Accepted: 12/21/2007] [Indexed: 10/22/2022]
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