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Badgujar D, Paritala ST, Matre S, Sharma N. Enantiomeric purity of synthetic therapeutic peptides: A review. Chirality 2024; 36. [PMID: 38448043 DOI: 10.1002/chir.23652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/17/2024] [Accepted: 01/31/2024] [Indexed: 03/08/2024]
Abstract
Synthetic therapeutic peptides are a complex and popular class of pharmaceuticals. In recent years, peptides with proven therapeutic activity have gained significant interest in the market. The determination of synthetic peptide enantiomeric purity plays a critical role in the evaluation of the quality of the medicine. Since racemization is one of the most common side reactions occurring in AAs or peptides, enantiomeric impurities such as D-isomers can form during the peptide synthesis or can be introduced from the starting materials (e.g., AAs). The therapeutic effect of a synthetic or semi-synthetic bioactive peptide molecule depends on its AA enantiomeric purity and secondary/tertiary structure. Therefore, the enantiomeric purity determination for synthetic peptides is supportive for interpreting unwanted therapeutic effects and determining the quality of synthetic peptide therapeutics. However, enantiomeric purity analysis encounters formidable analytical challenges during chromatographic separation, as D/L isomers have identical physical-chemical properties except stereochemical configuration. To ensure peptides AA stereochemical configuration whether in the free or bound state, sensitive and reproducible quantitative analytical method is mandatory. In this regard, numerous analytical techniques were emerged for the quantification of D-isomeric impurities in synthetic peptides, but still, very few reports are available in the literature. Thus, the purpose of this paper is to provide an overview of the importance, regulatory requirements, and various analytical methods used for peptide enantiomeric purity determination. In addition, we discussed the available literature in terms of enantiomeric impurity detection, common hydrolysis procedural aspects, and different analytical strategies used for sample preparation.
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Affiliation(s)
- Devendra Badgujar
- National Institute of Pharmaceutical Education and Research-Ahmedabad, Ministry of Chemicals and Fertilizers, Government of India, Gandhinagar, Gujarat, India
| | - Sree Teja Paritala
- National Institute of Pharmaceutical Education and Research-Ahmedabad, Ministry of Chemicals and Fertilizers, Government of India, Gandhinagar, Gujarat, India
| | - Shubham Matre
- National Institute of Pharmaceutical Education and Research-Ahmedabad, Ministry of Chemicals and Fertilizers, Government of India, Gandhinagar, Gujarat, India
| | - Nitish Sharma
- National Institute of Pharmaceutical Education and Research-Ahmedabad, Ministry of Chemicals and Fertilizers, Government of India, Gandhinagar, Gujarat, India
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2
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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: 2] [Impact Index Per Article: 2.0] [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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3
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Varfaj I, Carotti A, Mangiapelo L, Cossignani L, Taticchi A, Macchiarulo A, Ianni F, Sardella R. Environmentally Sustainable Achiral and Chiral Chromatographic Analysis of Amino Acids in Food Supplements. Molecules 2022; 27:molecules27227724. [PMID: 36431824 PMCID: PMC9697624 DOI: 10.3390/molecules27227724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022] Open
Abstract
Two LC methods were developed for the achiral and chiral reversed-phase (RP) analysis of an amino acid (AA) pool in a food supplement, in compliance with the main paradigms of Green Chromatography. A direct achiral ion-pairing RP-HPLC method was optimized under gradient conditions with a water-ethanol (EtOH) eluent containing heptafluorobutyric acid (0.1%, v/v), to quantify the eight essential AAs (Ile, Leu, Lys, Met, Phe, Thr, Trp, and Val) contained in the food supplement. Thus, the usually employed acetonitrile was profitably substituted with the less toxic and more benign EtOH. The method was validated for Leu and Phe. The chiral LC method performed with a teicoplanin chiral stationary phase was developed with a water-EtOH (60:40, v/v) eluent with 0.1%, v/v acetic acid. The enantioselective analysis was carried out without any prior derivatization step. Both developed methods performed highly for all eight AAs and revealed that: (i) the content of six out of eight AAs was consistent with the manufacturer declaration; (ii) only L-AAs were present. Furthermore, it was demonstrated that a two-dimensional achiral-chiral configuration is possible in practice, making it even more environmentally sustainable. A molecular modelling investigation revealed interesting insights into the enantiorecognition mechanism of Lys.
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Affiliation(s)
- Ina Varfaj
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy
| | - Andrea Carotti
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy
| | - Luciano Mangiapelo
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy
| | - Lina Cossignani
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy
- Center for Perinatal and Reproductive Medicine, University of Perugia, Santa Maria della Misericordia University Hospital, 06132 Perugia, Italy
| | - Agnese Taticchi
- Department of Agricultural Food and Environmental Sciences, University of Perugia, Via S. Costanzo, 06126 Perugia, Italy
| | - Antonio Macchiarulo
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy
| | - Federica Ianni
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy
- Correspondence:
| | - Roccaldo Sardella
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy
- Center for Perinatal and Reproductive Medicine, University of Perugia, Santa Maria della Misericordia University Hospital, 06132 Perugia, Italy
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4
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Hou B, Li Z, Kang X, Jiang H, Cui Y. Recent Advances of Covalent Organic Frameworks for Chiral Separation. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-1490-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Tomczyk N, Giles K, Richardson K, Ujma J, Palmer M, Nielsen PK, Haselmann KF. Mapping Isomeric Peptides Derived from Biopharmaceuticals Using High-Resolution Ion Mobility Mass Spectrometry. Anal Chem 2021; 93:16379-16384. [PMID: 34842410 DOI: 10.1021/acs.analchem.1c02834] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The identification and localization of isomeric peptide modifications is a critical requirement of the biopharmaceutical industry. Despite the ability of liquid chromatography-mass spectrometry to identify many of the common post translational modifications, the identification of isobaric or racemized peptides is confounded by modern mass spectrometry-based techniques. Here, we present a novel approach combining liquid chromatography with a high-resolution ion mobility mass spectrometry system to differentiate peptide and peptide fragments based upon their mobility and mass.
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Affiliation(s)
- Nick Tomczyk
- Waters Corporation, Stamford Avenue, Wilmslow SK9 4AX, U.K
| | - Kevin Giles
- Waters Corporation, Stamford Avenue, Wilmslow SK9 4AX, U.K
| | | | - Jakub Ujma
- Waters Corporation, Stamford Avenue, Wilmslow SK9 4AX, U.K
| | - Martin Palmer
- Waters Corporation, Stamford Avenue, Wilmslow SK9 4AX, U.K
| | - Peter Kresten Nielsen
- Novo Nordisk A/S, Global Research Technologies, Novo Nordisk Park, Maaloev DK-2760, Denmark
| | - Kim F Haselmann
- Novo Nordisk A/S, Global Research Technologies, Novo Nordisk Park, Maaloev DK-2760, Denmark
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6
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Aboul-Enein HY, Kannappan V, Kanthiah S. Impact of cyclofructan derivatives as efficient chiral selector in chiral analysis: An overview. Chirality 2021; 34:364-373. [PMID: 34806232 DOI: 10.1002/chir.23396] [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: 09/28/2021] [Revised: 10/21/2021] [Accepted: 11/01/2021] [Indexed: 01/12/2023]
Abstract
The development of chiral selectors for the separation and analysis of chiral molecules has been an evolving process happening over three decades, since the introduction of the first chiral stationary phase (CSP) in 1938. The main impetus for designing new chiral selectors is to get to most promising one which has a broad chiral recognition property, separation capability for a wide range of chiral analytes, and the cost-effective CSP, which is also a major concern. Today, we have more than 100 commercially available CSPs, and these are prepared by coating or immobilizing the classical chiral selectors on to the chromatographic support, normally, silica gel. The purpose of this review is to look at progress and the impact of cyclofructan derivatives, a novel chiral selector introduced recently, for performing chiral analysis.
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Affiliation(s)
- Hassan Y Aboul-Enein
- Pharmaceutical and Medicinal Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Center, Cairo, Egypt
| | | | - Selvakumar Kanthiah
- Department of Quality Assurance, Acharya & BM Reddy College of Pharmacy, Bengaluru, India
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Herciková J, Spálovská D, Frühauf P, Izák P, Lindner W, Kohout M. Design and synthesis of naphthalene-based chiral strong cation exchangers and their application for chiral separation of basic drugs. J Sep Sci 2021; 44:3348-3356. [PMID: 34270873 DOI: 10.1002/jssc.202100127] [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: 02/20/2021] [Revised: 06/06/2021] [Accepted: 07/12/2021] [Indexed: 11/10/2022]
Abstract
In continuation of our efforts to synthesize a highly dedicated strong cation exchanger, we introduce four chiral stationary phases based on a laterally substituted naphthalene core featuring chiral 2-aminocyclohexansulfonic acid as the chiral cation-exchange site. The selectors were modified with two different terminal units, which enabled immobilization to the silica support by thiol-ene radical reaction or azide-yne click chemistry. The chromatographic parameters of these chiral stationary phases were determined using a set of chiral amines, mainly from the family of β-blocker pharmaceuticals. The chiral stationary phases immobilized by means of click chemistry were found to be superior to those possessing the sulfide linker to the silica support. The chromatographic results and visualization of density functional theory-calculated conformations of the selectors hint at a combination of a steric and electronic effect of the triazole ring in the course of chiral resolution of the target analytes.
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Affiliation(s)
- Jana Herciková
- Department of Organic Chemistry, University of Chemistry and Technology Prague, Prague, Czech Republic
| | - Dita Spálovská
- Department of Analytical Chemistry, University of Chemistry and Technology Prague, Prague, Czech Republic
| | - Peter Frühauf
- Department of Analytical Chemistry, University of Vienna, Vienna, Austria
| | - Pavel Izák
- Institute of Chemical Process Fundamentals, Czech Academy of Sciences, Prague, Czech Republic.,Department of Physical Chemistry, University of Chemistry and Technology Prague, Prague, Czech Republic
| | - Wolfgang Lindner
- Department of Analytical Chemistry, University of Vienna, Vienna, Austria
| | - Michal Kohout
- Department of Organic Chemistry, University of Chemistry and Technology Prague, Prague, Czech Republic
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8
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Berkecz R, Tanács D, Péter A, Ilisz I. Enantioselective Liquid Chromatographic Separations Using Macrocyclic Glycopeptide-Based Chiral Selectors. Molecules 2021; 26:molecules26113380. [PMID: 34205002 PMCID: PMC8199854 DOI: 10.3390/molecules26113380] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 05/31/2021] [Accepted: 05/31/2021] [Indexed: 11/16/2022] Open
Abstract
Numerous chemical compounds of high practical importance, such as drugs, fertilizers, and food additives are being commercialized as racemic mixtures, although in most cases only one of the isomers possesses the desirable properties. As our understanding of the biological actions of chiral compounds has improved, the investigation of the pharmacological and toxicological properties has become more and more important. Chirality has become a major issue in the pharmaceutical industry; therefore, there is a continuous demand to extend the available analytical methods for enantiomeric separations and enhance their efficiency. Direct liquid chromatography methods based on the application of chiral stationary phases have become a very sophisticated field of enantiomeric separations by now. Hundreds of chiral stationary phases have been commercialized so far. Among these, macrocyclic glycopeptide-based chiral selectors have proved to be an exceptionally useful class of chiral selectors for the separation of enantiomers of biological and pharmacological importance. This review focuses on direct liquid chromatography-based enantiomer separations, applying macrocyclic glycopeptide-based chiral selectors. Special attention is paid to the characterization of the physico-chemical properties of these macrocyclic glycopeptide antibiotics providing detailed information on their applications published recently.
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9
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Yang Y, Wang Y, Bao Z, Yang Q, Zhang Z, Ren Q. Progress in the Enantioseparation of β-Blockers by Chromatographic Methods. Molecules 2021; 26:molecules26020468. [PMID: 33477385 PMCID: PMC7830546 DOI: 10.3390/molecules26020468] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/31/2022] Open
Abstract
β-adrenergic antagonists (β-blockers) with at least one chiral center are an exceedingly important class of drugs used mostly to treat cardiovascular diseases. At least 70 β-blockers have been investigated in history. However, only a few β-blockers, e.g., timolol, are clinically marketed as an optically pure enantiomer. Therefore, the separation of racemates of β-blockers is essential both in the laboratory and industry. Many approaches have been explored to obtain the single enantiomeric β-blocker, including high performance liquid chromatography, supercritical fluid chromatography and simulated moving bed chromatography. In this article, a review is presented on different chromatographic methods applied for the enantioseparation of β-blockers, covering high performance liquid chromatography (HPLC), supercritical fluid chromatography (SFC) and simulated moving bed chromatography (SMB).
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Affiliation(s)
- Yiwen Yang
- Institute of Pharmaceutical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; (Y.W.); (Z.B.); (Q.Y.); (Z.Z.); (Q.R.)
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
- Correspondence:
| | - Yehui Wang
- Institute of Pharmaceutical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; (Y.W.); (Z.B.); (Q.Y.); (Z.Z.); (Q.R.)
| | - Zongbi Bao
- Institute of Pharmaceutical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; (Y.W.); (Z.B.); (Q.Y.); (Z.Z.); (Q.R.)
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Qiwei Yang
- Institute of Pharmaceutical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; (Y.W.); (Z.B.); (Q.Y.); (Z.Z.); (Q.R.)
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Zhiguo Zhang
- Institute of Pharmaceutical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; (Y.W.); (Z.B.); (Q.Y.); (Z.Z.); (Q.R.)
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Qilong Ren
- Institute of Pharmaceutical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; (Y.W.); (Z.B.); (Q.Y.); (Z.Z.); (Q.R.)
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
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10
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Zhang Y, Jin X, Ma X, Wang Y. Chiral porous organic frameworks and their application in enantioseparation. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:8-33. [PMID: 33245740 DOI: 10.1039/d0ay01831g] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Porous organic frameworks (POFs) are a kind of porous material with a network structure composed of repeated monomers, which have excellent physical and chemical properties, such as a high surface area, high porosity, uniform pore sizes and structural diversity, and which have aroused broad interest among researchers. With the rapid development of materials science, increasingly more porous materials have been developed and applied, especially metal organic frameworks (MOFs) and covalent organic frameworks (COFs), which have been widely applied in the fields of luminous materials, catalytic research, adsorption and drug transport. One of the most important applications for chiral porous materials is in chiral separation and these materials have become a research hotspot in the field of chromatographic separation and analysis in recent years. In this review, from the viewpoint of enantioseparation, the synthesis of chiral porous materials and their applications in high-performance liquid chromatography (HPLC), capillary electrochromatography (CEC), and gas chromatography (GC) are reviewed. The typical applications of MOFs in solid-phase microextraction (SPME) are also discussed.
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Affiliation(s)
- Ying Zhang
- School of Science, Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300350, P. R. China.
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11
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Stepanova MV, Asnin LD, Boteva AA, Krasnykh OP, Fefilova IV. Relationships of the Enantioselective Retention of Chiral Oxazolopyrroloquinolones on a Stationary Phase with Grafted Antibiotic Ristocetin A. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421010271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Wilson LJ, Mi C, Kraml CM. A preparative chiral separation of hydroxychloroquine using supercritical fluid chromatography. J Chromatogr A 2020; 1634:461661. [PMID: 33166894 PMCID: PMC7598365 DOI: 10.1016/j.chroma.2020.461661] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/17/2020] [Accepted: 10/22/2020] [Indexed: 11/17/2022]
Abstract
Robust SFC preparative method for the separation of the enantiomers of hydroxychloroquine. drug repurposing: treatment for Covid-19 caused by SARS-CoV-2 infection.
A robust supercritical chromatography (SFC) method using an Enantiocel C2–5 column was developed for the multigram separation of the enantiomers of hydroxychloroquine (HCQ), affirming its use as a scalable technology and ability to provide quantities of each enantiomer for clinical evaluation. The enantiomers of HCQ were collected on a gram scale with greater than 99% enantiomeric excess. The S and R enantiomer elution order was confirmed using optical rotation determinations with comparison to previously determined assignments.
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Affiliation(s)
- Laura J Wilson
- Lotus Separations LLC, Princeton University, Princeton, NJ, 08540, USA
| | - Charles Mi
- ColumnTek, 200 Innovation Blvd, STE 258A State College, PA, 16801, USA
| | - Christina M Kraml
- Lotus Separations LLC, Princeton University, Princeton, NJ, 08540, USA.
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13
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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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14
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Zhou D, Zheng Y, Luo Q, Gao D, Fu Q, Zhang K, Xia Z, Wang L. Preparation of an aspartame and N-isopropyl acrylamide copolymer functionalized stationary phase with multi-mode and chiral separation abilities. J Chromatogr A 2020; 1634:461675. [DOI: 10.1016/j.chroma.2020.461675] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/13/2020] [Accepted: 10/29/2020] [Indexed: 01/09/2023]
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15
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Molecular docking and density functional theory calculations of vinpocetine and teicoplanin aglycone chiral selector. J INCL PHENOM MACRO 2020. [DOI: 10.1007/s10847-020-01015-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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A study of tetrapeptide enantiomeric separation on crown ether based chiral stationary phases. J Chromatogr A 2020; 1622:461152. [PMID: 32376024 DOI: 10.1016/j.chroma.2020.461152] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 01/13/2023]
Abstract
The chiral separations of small peptides is an important challenge in the biological and medical sciences, because different stereoisomers of chiral drugs can often possess different pharmacological, pharmacokinetic, and/or toxicological activities. Commercially available crown ether chiral stationary phases based on S-(3,3'-diphenyl-1,1'-binaphthyl)-20-crown-6 (CROWNPAK CR-I (+)) and (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid (ChiroSil RCA (+)) have been successfully used for separating enantiomers of various racemic compounds containing primary amino groups. In this investigation, enantioresolution of more complex model analyte - tetrapeptide Tyr-Arg-Phe-Lys-NH2, has been reported on crown ether chiral stationary phases. Organic and acidic modifier content in aqueous mobile phase was tested. All Tyr-Arg-Phe-Lys-NH2 stereoisomers showed U-shaped retention plots, based on ACN content in mobile phase. Increased retention of tetrapeptide stereoisomers was observed at low (<35%) and at high (>70%) acetonitrile content in the mobile phase, indicating that different separation mechanisms are most likely involved. As a result, baseline separation of all eight tetrapeptide enantiomer pairs was achieved under isocratic elution mode on both chiral columns.
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17
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Determination of l-norvaline and l-tryptophan in dietary supplements by nano-LC using an O-[2-(methacryloyloxy)-ethylcarbamoyl]-10,11-dihydroquinidine-silica hybrid monolithic column. J Pharm Anal 2020; 10:70-77. [PMID: 32123601 PMCID: PMC7037541 DOI: 10.1016/j.jpha.2019.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 10/19/2019] [Accepted: 10/19/2019] [Indexed: 11/23/2022] Open
Abstract
An analytical methodology based on an O-[2-(methacryloyloxy)-ethylcarbamoyl]-10,11-dihydroquinidine (MQD)-silica hybrid monolithic column was developed for the enantioseparation of 9-fluorenylmethoxycarbonyl (FMOC) derivatized amino acids by nano-liquid chromatography. The mobile phase was optimized including the apparent pH, content of ACN, and concentration of the buffer to obtain a satisfactory enantioresolution performance. 27 FMOC derivatized amino acids including 19 protein and 8 non-protein amino acids were tested, and 19 out of them were enantiomerically discriminated obtaining baseline separation for 11 of them. Analytical characteristics of the method were evaluated for norvaline and tryptophan in terms of linearity, precision, accuracy, limits of detection (LOD) and quantitation (LOQ) showing good performance to be applied to the enantiomeric determination of these amino acids in dietary supplements. LOD and LOQ values were 9.3 and 31 μM for norvaline enantiomers and 7.5 and 25 μM for tryptophan enantiomers, respectively. The contents of d-norvaline and d-tryptophan were below their respective LODs in all the analyzed samples. Quantitation of l-tryptophan and l-norvaline showed good agreement with the labeled contents except for one sample which did not show presence of l-norvaline, contrary to the label indication. A method was developed for the enantiomeric separation of amino acids by nano-LC. A novel quinidine-silica hybrid monolith was employed as chiral column. 19 protein and non-protein FMOC-amino acids were enantiomerically discriminated. Analytical characteristics of the developed method were evaluated. Norvaline and tryptophan were enantiomerically determined in dietary supplements.
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18
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Asnin LD, Vasyanin AN, Stepanova MV. Enantioselective adsorption of dipeptides on chiral stationary phases with grafted macrocyclic antibiotics using glycylaspartic acid as an example. Russ Chem Bull 2020. [DOI: 10.1007/s11172-019-2692-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Shuang Y, Liao Y, Zhang T, Li L. Preparation and evaluation of an ethylenediamine dicarboxyethyl diamido-bridged bis(β-cyclodextrin)-bonded chiral stationary phase for high performance liquid chromatography. J Chromatogr A 2020; 1619:460937. [PMID: 32063276 DOI: 10.1016/j.chroma.2020.460937] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 11/25/2022]
Abstract
An ethylenediamine dicarboxyethyl diacetamido-bridged bis(β-cyclodextrin) was firstly synthesized through the reaction of 6-deoxy-6-amino-β-cyclodextrin (NH2-CD) with ethylenediaminetetraacetic dianhydride. Then it was bonded onto the surface of silica gel SBA-15 to obtain an ethylenediamine dicarboxyethyl diacetamido-bridged bis(β-CD)-bonded chiral stationary phase (EBCDP). The structures of the bridged bis(β-CD) and EBCDP were characterized by infrared spectroscopy, mass spectrometry, elemental analysis and thermogravimetric analysis, accordingly. The chiral chromatographic performances of EBCDP were systematically evaluated by separating 28 racemic analytes in the reversed-phase or polar organic mode, including eight flavanones, eight bolckers, five dansyl-amino acids, three DL-amino acids and four other common drugs. As a result, the relatively high enantioselectivity of EBCDP was observed in comparison with a native β-CD-CSP (CDSP). All selected analytes were separated on EBCDP, of which 20 analytes had resolutions up to baseline, 2'-hydroxyflavanone and arotinolol had resolutions up to 4.35 and 2.05 in about 30 min, respectively, whereas CDSP only separated 11 analytes with low resolutions (0.55~1.69). Moreover, EBCDP was able to utilize the complexation of the bridging linker (ethylenediamine dicarboxyethyl diamide group, EDTA-based) to realize direct separations of DL-amino acids with a mobile phase containing copper ion (Cu2+), which was similar to the chiral ligand exchange chromatography. Unlike the native cyclodextrin with small cavity (~242 Å3), the bridged bis(β-CD) combined two β-CD units with a bridging linker, having a well-organized "pseudo-cavity" as an organic whole to encapsulate more analytes, which made EBCDP have broad-spectrum applications in chiral separations.
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Affiliation(s)
- Yazhou Shuang
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Yuqin Liao
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Tianci Zhang
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Laisheng Li
- College of Chemistry, Nanchang University, Nanchang 330031, China.
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20
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Bajtai A, Ilisz I, Howan DH, Tóth GK, Scriba GK, Lindner W, Péter A. Enantioselective resolution of biologically active dipeptide analogs by high-performance liquid chromatography applying Cinchona alkaloid-based ion-exchanger chiral stationary phases. J Chromatogr A 2020; 1611:460574. [DOI: 10.1016/j.chroma.2019.460574] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 12/14/2022]
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21
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Folprechtová D, Kozlov O, Armstrong DW, Schmid MG, Kalíková K, Tesařová E. Enantioselective potential of teicoplanin- and vancomycin-based superficially porous particles-packed columns for supercritical fluid chromatography. J Chromatogr A 2019; 1612:460687. [PMID: 31727354 DOI: 10.1016/j.chroma.2019.460687] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/05/2019] [Accepted: 11/06/2019] [Indexed: 11/18/2022]
Abstract
Application of the superficially porous particles (SPPs) grafted with chiral selectors can substantially improve resolution in chromatographic techniques. In this work, we carried out a deeper study on supercritical fluid chromatography systems with 2.7 µm SPPs bonded with teicoplanin and vancomycin. Fast separations of the majority of enantiomers of phytoalexins, substituted tryptophans, and ketamine derivatives, as representatives of important biologically active and structurally diverse chiral compounds have been achieved. The chromatographic behavior of the structurally different analytes served to characterize these separation systems. The influence of separation conditions, namely mobile phase composition, i.e. type of co-solvent and additive on retention, enantioselective resolution and enantioselectivity was examined. The success rate of baseline and partial separations in individual groups of compounds differed with the chiral stationary phase and also with mobile phase composition. The best, baseline separations for the phytoalexins were achieved on the TeicoShell column using methanol as a co-solvent and trifluoroacetic acid as an additive if used. Mostly partial separations were achieved on the vancomycin-based column for all groups of analytes. Complementary separation behavior of these CSPs was confirmed for the majority of the chiral compounds examined in this work.
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Affiliation(s)
- Denisa Folprechtová
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 12843, Prague, Czech Republic
| | - Oleksandr Kozlov
- Department of Analytical Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova 11, 040 01 Košice, Slovak Republic
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, United States
| | - Martin G Schmid
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria
| | - Květa Kalíková
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 12843, Prague, Czech Republic.
| | - Eva Tesařová
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 12843, Prague, Czech Republic
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22
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Zhang J, Xie S, Zi M, Yuan L. Recent advances of application of porous molecular cages for enantioselective recognition and separation. J Sep Sci 2019; 43:134-149. [DOI: 10.1002/jssc.201900762] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/15/2019] [Accepted: 09/27/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Jun‐Hui Zhang
- Department of ChemistryYunnan Normal University Kunming P. R. China
| | - Sheng‐Ming Xie
- Department of ChemistryYunnan Normal University Kunming P. R. China
| | - Min Zi
- Department of ChemistryYunnan Normal University Kunming P. R. China
| | - Li‐Ming Yuan
- Department of ChemistryYunnan Normal University Kunming P. R. China
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23
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Reshetova EN, Kopchenova MV, Vozisov SE, Vasyanin AN, Asnin LD. Enantioselective retention mechanisms of dipeptides on antibiotic-based chiral stationary phases: Leucyl-leucine, glycyl-leucine, and leucyl-glycine as case studies. J Chromatogr A 2019; 1602:368-377. [PMID: 31213361 DOI: 10.1016/j.chroma.2019.06.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 06/04/2019] [Accepted: 06/10/2019] [Indexed: 11/20/2022]
Abstract
Chromatographic behaviors of dipeptides consisting of leucine and glycine were studied on two antibiotic-based chiral stationary phases (CSPs) with teicoplanin (Chirobiotic T) or ristocetin A (Chirobiotic R) as chiral selectors under reversed-phase conditions. The effect of mobile phase pH on the retention of stereoisomers of dipeptides was investigated and thermodynamic characteristic of adsorption were measured at different pH values. It was shown that the retention of dipeptides depends on the ionization of their molecules in the mobile phase, as different ionic forms have different affinity towards antibiotic selectors. Enantioselectivity of the bound antibiotics with respect to Leu-Leu stereoisomers was achieved via steric modulation of ion-ion interactions between the solute and the selector, while in the case of Gly-Leu enantiomers non-ionic interactions such as hydrogen bonding might play the key role. In both cases, the dipeptides terminating in D-Leu were retained stronger than their optical antipodes, whereas the enantiomers of Leu-Gly were hardly separated. The regression analysis of the retention data applying the Horvath-Melander-Molnar model revealed that different types of enantioselectivity resides in particular ionic forms of the compounds: cations are responsible for the separation of diastereomeric pairs and the anionic and zwitterionic forms have a universal enantioselectivity on the Chirobiotic T CSP, and the anions and zwitterions are the enantioselective forms for the Chirobiotic R CSP.
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Affiliation(s)
- Elena N Reshetova
- Institute of Technical Chemistry of the Ural Branch of the Russian Academy of Sciences, 3 Academician Korolev Str., Perm 614013, Russia
| | | | - Stepan E Vozisov
- Perm National Research Polytechnic University, 29 Komsomolsky Al., Perm 614990, Russia
| | | | - Leonid D Asnin
- Perm National Research Polytechnic University, 29 Komsomolsky Al., Perm 614990, Russia.
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24
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Pérez-Míguez R, Bruyneel B, Castro-Puyana M, Marina ML, Somsen GW, Domínguez-Vega E. Chiral Discrimination of DL-Amino Acids by Trapped Ion Mobility Spectrometry after Derivatization with (+)-1-(9-Fluorenyl)ethyl Chloroformate. Anal Chem 2019; 91:3277-3285. [PMID: 30682252 PMCID: PMC6404107 DOI: 10.1021/acs.analchem.8b03661] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
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A novel analytical
method based on hybrid trapped ion mobility
spectrometry-time-of-flight mass spectrometry (TIMS-TOFMS) has been
developed to achieve fast enantiomeric separation of amino acids (AAs).
Resolution of chiral AAs was achieved by forming diastereomers through
derivatization with the chiral agent (+)-1-(9-fluorenyl)ethyl chloroformate
(FLEC), avoiding the use of reference compounds. Electrospray ionization
(ESI) in positive mode yielded sodiated FLEC-AAs ions of which the
diastereomers could be separated by TIMS. The effect of other alkali
metal ions (such as Li and K) on the enantioselectivity was studied,
but chiral discrimination was only observed for Na. TIMS conditions,
including voltage ramp, ramp time, and accumulation time were optimized
for each AA, and collision cross sections (CCSs) were determined for
all diastereomers. The migration order of the DL enantiomers was found
to be dependent on the structure of the AA. The resulting TIMS resolution
(K0/ΔK0) for the FLEC-AA diastereomers on average was 115, requiring
a mobility (K0) difference of about 0.009 cm2/(V s) to
achieve 50%-valley separation. From the 21 AAs studied, enantiomer
separation was achieved for 17 AAs with mobility differences ranging
from 0.009 for lysine up to 0.061 cm2/(V s) for asparagine.
Moreover, the presented methodology provided mutual separation of
various AAs, allowing chiral analysis of multiple AAs simultaneously
which may be challenging with previous enantioselective IMS approaches.
It appeared possible to fully resolve all studied DL-AAs using three
distinct TIMS methods, resulting in a total MS run time of about 3
min (1 min per method) and a total analysis time (including derivatization)
of less than 15 min. The method demonstrated capable to determine
enantiomeric ratios down to 2.5% with detection limits for the D enantiomers
in the nanomolar range. This new TIMS-based methodology opens up possibilities
for easy and fast analysis of AA enantiomers.
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Affiliation(s)
- Raquel Pérez-Míguez
- Division of BioAnalytical Chemistry, Amsterdam Institute for Molecules, Medicines and Systems, Department of Chemistry and Pharmaceutical Sciences , Vrije Universiteit Amsterdam , de Boelelaan 1085 , 1081 HV Amsterdam , The Netherlands.,Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences , University of Alcalá , Carretera Madrid-Barcelona Km. 33600 , 28871 , Alcalá de Henares , Madrid , Spain
| | - Ben Bruyneel
- Division of BioAnalytical Chemistry, Amsterdam Institute for Molecules, Medicines and Systems, Department of Chemistry and Pharmaceutical Sciences , Vrije Universiteit Amsterdam , de Boelelaan 1085 , 1081 HV Amsterdam , The Netherlands
| | - María Castro-Puyana
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences , University of Alcalá , Carretera Madrid-Barcelona Km. 33600 , 28871 , Alcalá de Henares , Madrid , Spain
| | - María Luisa Marina
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Sciences , University of Alcalá , Carretera Madrid-Barcelona Km. 33600 , 28871 , Alcalá de Henares , Madrid , Spain
| | - Govert W Somsen
- Division of BioAnalytical Chemistry, Amsterdam Institute for Molecules, Medicines and Systems, Department of Chemistry and Pharmaceutical Sciences , Vrije Universiteit Amsterdam , de Boelelaan 1085 , 1081 HV Amsterdam , The Netherlands
| | - Elena Domínguez-Vega
- Division of BioAnalytical Chemistry, Amsterdam Institute for Molecules, Medicines and Systems, Department of Chemistry and Pharmaceutical Sciences , Vrije Universiteit Amsterdam , de Boelelaan 1085 , 1081 HV Amsterdam , The Netherlands
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25
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High-Performance Liquid Chromatography Enantioseparations Using Macrocyclic Glycopeptide-Based Chiral Stationary Phases: An Overview. Methods Mol Biol 2019; 1985:201-237. [PMID: 31069737 DOI: 10.1007/978-1-4939-9438-0_12] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Since their introduction by Daniel W. Armstrong in 1994, antibiotic-based chiral stationary phases have proven their applicability for the chiral resolution of various types of racemates. The unique structure of macrocyclic glycopeptides and their large variety of interactive sites (e.g., hydrophobic pockets, hydroxy, amino and carboxyl groups, halogen atoms, aromatic moieties) are the reasons for their wide-ranging selectivity. The commercially available Chirobiotic™ phases, which display complementary characteristics, are capable of separating a broad variety of enantiomeric compounds with good efficiency, good column loadability, high reproducibility, and long-term stability. These are the major reasons for the frequent use of macrocyclic antibiotic-based stationary phases in HPLC enantioseparations.This overview chapter provides a brief summary of general aspects of antibiotic-based chiral stationary phases including their preparation and their application to direct enantioseparations of various racemates focusing on the literature published since 2004.
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26
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Gus’kov VY, Maistrenko VN. New Chiral Stationary Phases: Preparation, Properties, and Applications in Gas Chromatography. JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1134/s1061934818100027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Xie SM, Yuan LM. Recent development trends for chiral stationary phases based on chitosan derivatives, cyclofructan derivatives and chiral porous materials in high performance liquid chromatography. J Sep Sci 2018; 42:6-20. [PMID: 30152091 DOI: 10.1002/jssc.201800656] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/20/2018] [Accepted: 08/20/2018] [Indexed: 11/06/2022]
Abstract
The separation of enantiomers by chromatographic methods, such as gas chromatography, high-performance liquid chromatography and capillary electrochromatography, has become an increasingly significant challenge over the past few decades due to the demand of pharmaceutical, agrochemical, and food analysis. Among these chromatographic resolution methods, high-performance liquid chromatography based on chiral stationary phases has become the most popular and effective method used for the analytical and preparative separation of optically active compounds. This review mainly focuses on the recent development trends for novel chiral stationary phases based on chitosan derivatives, cyclofructan derivatives, and chiral porous materials that include metal-organic frameworks and covalent organic frameworks in high-performance liquid chromatography. The enantioseparation performance and chiral recognition mechanisms of these newly developed chiral selectors toward enantiomers are discussed in detail.
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Affiliation(s)
- Sheng-Ming Xie
- Department of Chemistry, Yunnan Normal University, Kunming, P. R. China
| | - Li-Ming Yuan
- Department of Chemistry, Yunnan Normal University, Kunming, P. R. China
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28
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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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29
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Carrasco-Correa EJ, Ferri M, Woiwode U, Ma Y, Herrero-Martínez JM, Ramis-Ramos G, Lindner W, Lämmerhofer M. Zwitterionic codeine-derived methacrylate monoliths for enantioselective capillary electrochromatography of chiral acids and chiral bases. Electrophoresis 2018; 39:2558-2565. [DOI: 10.1002/elps.201800126] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/22/2018] [Accepted: 06/23/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Enrique Javier Carrasco-Correa
- Institute of Pharmaceutical Sciences; University of Tübingen; Tübingen Germany
- Department of Analytical Chemistry; University of Valencia; Valencia Spain
| | - Martina Ferri
- Institute of Pharmaceutical Sciences; University of Tübingen; Tübingen Germany
- Department of Pharmaceutical Sciences; University of Perugia; Perugia Italy
| | - Ulrich Woiwode
- Institute of Pharmaceutical Sciences; University of Tübingen; Tübingen Germany
| | - Yubo Ma
- Institute of Pharmaceutical Sciences; University of Tübingen; Tübingen Germany
| | | | | | - Wolfgang Lindner
- Department of Analytical Chemistry; University of Vienna; Vienna Austria
- Lindner Consulting GmbH; Klosterneuburg Austria
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences; University of Tübingen; Tübingen Germany
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30
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Capriotti AL, Montone CM, Antonelli M, Cavaliere C, Gasparrini F, La Barbera G, Piovesana S, Laganà A. Simultaneous Preconcentration, Identification, and Quantitation of Selenoamino Acids in Oils by Enantioselective High Performance Liquid Chromatography and Mass Spectrometry. Anal Chem 2018; 90:8326-8330. [DOI: 10.1021/acs.analchem.8b02089] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Chiral Method Development Strategies for HPLC using Macrocyclic Glycopeptide-Based Stationary Phases. Chromatographia 2018. [DOI: 10.1007/s10337-018-3526-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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32
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Zhao L, Qiao J, Zhang K, Li D, Zhang H, Qi L. Construction of chiral ligand exchange capillary electrochromatography for d,l-amino acids enantioseparation and its application in glutaminase kinetics study. J Chromatogr A 2018; 1548:104-110. [PMID: 29580800 DOI: 10.1016/j.chroma.2018.03.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 03/12/2018] [Accepted: 03/14/2018] [Indexed: 11/16/2022]
Abstract
A chiral ligand exchange capillary electrochromatography (CLE-CEC) protocol was designed and implemented for d,l-amino acids enantioseparation with poly(maleic anhydride-styrene-methacryloyl-l-arginine methyl ester) as the coating. The block copolymer was synthesized through the reversible addition fragmentation chain transfer reaction. In the constructed CLE-CEC system, poly (methacryloyl-l-arginine methyl ester) moiety of the block copolymer played the role as the immobilized chiral ligand and Zn (II) was used as the central ion. Key factors, including pH of buffer solution, ratio of Zn (II) to ligands, the mass ratio of monomers in the block copolymer, which affect the enantioresolution were investigated. Comparing with the bare capillary, the CLE-CEC enantioresolution was enhanced greatly with the coating one. 5 Pairs of d,l-amino acids enantiomers obtained baseline separation with 5 pairs partly separated. The mechanism of enhancement enantioresolution of the developed CLE-CEC system was explored briefly. Further, good linearities were achieved in the range of 25.0 μM-5.0 mM for quantitative analysis of d-glutamine (r2 = 0.997) and l-glutamine (r2 = 0.991). Moreover, the proposed CLE-CEC assay was successfully applied in the kinetics study of glutaminase by using l-glutamine as the substrate.
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Affiliation(s)
- Liping Zhao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun Beiyijie, Beijing 100190, China; College of Chemistry & Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province, Hebei University, No. 180 Wusi East Road, Baoding 071002, China
| | - Juan Qiao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun Beiyijie, Beijing 100190, China; University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China
| | - Ke Zhang
- University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China; State Key Lab of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun Beiyijie, Beijing 100190, China
| | - Dan Li
- Jinan University, Guangzhou 510632, China
| | - Hongyi Zhang
- College of Chemistry & Environmental Science, Key Laboratory of Analytical Science and Technology of Hebei Province, Hebei University, No. 180 Wusi East Road, Baoding 071002, China.
| | - Li Qi
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun Beiyijie, Beijing 100190, China; University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing 100049, China.
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33
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Muñoz J, González-Campo A, Riba-Moliner M, Baeza M, Mas-Torrent M. Chiral magnetic-nanobiofluids for rapid electrochemical screening of enantiomers at a magneto nanocomposite graphene-paste electrode. Biosens Bioelectron 2018; 105:95-102. [PMID: 29412951 DOI: 10.1016/j.bios.2018.01.024] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 01/04/2018] [Accepted: 01/11/2018] [Indexed: 11/28/2022]
Abstract
The development of highly sensitive and selective enantiomeric platforms towards the rapid screening of active pharmaceutical ingredients (APIs) is nowadays a crucial challenge in several fields related to pharmacology, biomedicine, biotechnology and (bio)sensors. Herein, it is presented a novel, facile and generic methodology focused on exploiting the synergistically and electrocatalytic properties of chiral magnetic-nanobiofluids (mNBFs) with electrochemical enantiobiosensing at a magneto nanocomposite graphene paste electrode (mNC-GPE). The feasibility of this approach has been validated by chirally recognizing tryptophan (TRP) enantiomers as a proof-of-concept. For this aim, a specific chiral mNBF based on an aqueous dispersion of cobalt ferrite loaded with gold nanoparticles carrying a thiolated β-cyclodextrin (β-CD-SH/Au/CoFe2O4-NPs) has been synthesized and used towards the supramolecular discrimination of TRP enantiomers at an advanced graphene-paste transducer via cyclic voltammetry. This strategy, which is the first demonstration of applicability of chiral mNBFs for electrochemical enantiorecognition, opens up new approaches into enantio(bio)sensing.
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Affiliation(s)
- J Muñoz
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain.
| | - A González-Campo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
| | - M Riba-Moliner
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
| | - M Baeza
- GENOCOV Research Group, Department of Chemistry, Faculty of Science, Universitat Autònoma de Barcelona, Campus UAB, 08193 Bellaterra, Spain
| | - M Mas-Torrent
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain; Networking Research Center on Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), Campus de la UAB, 08193 Bellaterra, Spain
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34
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Fumagalli L, Pucciarini L, Regazzoni L, Gilardoni E, Carini M, Vistoli G, Aldini G, Sardella R. Direct HPLC separation of carnosine enantiomers with two chiral stationary phases based on penicillamine and teicoplanin derivatives. J Sep Sci 2018; 41:1240-1246. [PMID: 29230946 DOI: 10.1002/jssc.201701308] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 11/28/2017] [Accepted: 11/29/2017] [Indexed: 11/09/2022]
Abstract
Carnosine is present in high concentrations in specific human tissues such as the skeletal muscle, and among its biological functions, the remarkable scavenging activity toward reactive carbonyl species is noteworthy. Although the two enantiomers show almost identical scavenging reactivity toward reactive carbonyl species, only d-carnosine is poorly adsorbed at the gastrointestinal level and is stable in human plasma. Direct methods for the enantioselective analysis of carnosine are still missing even though they could find more effective applications in the analysis of complex matrices. In the present study, the use of two different chiral stationary phases is presented. A chiral ligand-exchange chromatography stationary phase based on N,S-dioctyl-d-penicillamine resulted in the direct enantioseparation of carnosine. Indeed, running the analysis at 25°C and 1.0 mL/min with a 1.5 mM copper(II) sulfate concentration allowed us to obtain separation and resolution factors of 3.37 and 12.34, respectively. However, the use of a copper(II)-containing eluent renders it hardly compatible with mass spectrometry detectors. With the teicoplanin-based stationary phase, a mass spectrometry compatible method was successfully developed. Indeed, a water/methanol 60:40 v/v pH 3.1 eluent flowed at 1.0 mL/min and with a 25°C column temperature produced separation and resolution factors of 2.60 and 4.16, respectively.
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Affiliation(s)
- Laura Fumagalli
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Lucia Pucciarini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Luca Regazzoni
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Ettore Gilardoni
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Marina Carini
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Giulio Vistoli
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Giancarlo Aldini
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Roccardo Sardella
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
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35
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Deng X, Li W, Ding G, Xue T, Chen X. Synthesis and Applications of Functionalized Magnetic Nanomaterials in Enantioseparation. SEPARATION AND PURIFICATION REVIEWS 2017. [DOI: 10.1080/15422119.2017.1419257] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xiaojuan Deng
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
- Analysis Center, Tianjin University, Tianjin, China
| | - Wenbin Li
- Dikma Technologies Inc., Tianjin, China
| | | | - Tao Xue
- Analysis Center, Tianjin University, Tianjin, China
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36
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Air-oxidation from sulfur to sulfone-bridged Schiff-base macrocyclic complexes showing enhanced antimicrobial activities. Sci Rep 2017; 7:15881. [PMID: 29162900 PMCID: PMC5698483 DOI: 10.1038/s41598-017-15898-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 10/30/2017] [Indexed: 12/01/2022] Open
Abstract
Two embedded sulfur atoms in a novel [2 + 2] Schiff-base macrocyclic dinuclear Zn(II) complex were found to be easily autoxidized to the sulfone units on air exposure, and the resultant sulfone-functionalized macrocyclic complex was obtained by the post-modification strategy exhibiting enhanced antimicrobial activities because of the presence of dual active sites in comparison with the sulfur-containing Schiff-base macrocycle.
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37
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Vargas-Caporali J, Juaristi E. Fundamental Developments of Chiral Phase Chromatography in Connection with Enantioselective Synthesis of β-Amino Acids. Isr J Chem 2017. [DOI: 10.1002/ijch.201700011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jorge Vargas-Caporali
- Departamento de Química; Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional Avenida IPN No. 2508; 07360 Ciudad de México México
| | - Eusebio Juaristi
- Departamento de Química; Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional Avenida IPN No. 2508; 07360 Ciudad de México México
- El Colegio Nacional; Luis González Obregón No. 23, Centro Histórico 06020 Ciudad de México México
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38
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Abdollahpour A, Heydari R, Shamsipur M. Two Synthetic Methods for Preparation of Chiral Stationary Phases Using Crystalline Degradation Products of Vancomycin: Column Performance for Enantioseparation of Acidic and Basic Drugs. AAPS PharmSciTech 2017; 18:1855-1862. [PMID: 27844416 DOI: 10.1208/s12249-016-0660-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 10/31/2016] [Indexed: 11/30/2022] Open
Abstract
Two chiral stationary phases (CSPs) based on crystalline degradation products (CDPs) of vancomycin by using different synthetic methods were prepared and compared. Crystalline degradation products of vancomycin were produced by hydrolytic loss of ammonia from vancomycin molecules. Performances of two chiral columns prepared with these degradation products were investigated using several acidic and basic drugs as model analytes. Retention and resolution of these analytes on the prepared columns, as two main parameters, in enantioseparation were studied. The results demonstrated that the stationary phase preparation procedure has a significant effect on the column performance. The resolving powers of prepared columns for enantiomers resolution were changed with the variation in vancomycin-CDP coverage on the silica support. Elemental analysis was used to monitor the surface coverage of silica support by vancomycin-CDP. The results showed that both columns can be successfully applied to chiral separation studies.
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39
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Orosz T, Grecsó N, Lajkó G, Szakonyi Z, Fülöp F, Armstrong DW, Ilisz I, Péter A. Liquid chromatographic enantioseparation of carbocyclic β-amino acids possessing limonene skeleton on macrocyclic glycopeptide-based chiral stationary phases. J Pharm Biomed Anal 2017; 145:119-126. [PMID: 28654779 DOI: 10.1016/j.jpba.2017.06.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 06/01/2017] [Accepted: 06/06/2017] [Indexed: 10/19/2022]
Abstract
Polar-ionic and reversed-phase high-performance liquid chromatographic separations of limonene-based cyclic β-amino acid enantiomers were carried out by using macrocyclic glycopeptide-based chiral selectors applying Chirobiotic T, TAG and R columns. The effects of additives, concentration of the co- and counter-ions and the temperature in polar-ionic mobile phase systems were studied. The influence of pH, MeOH content and alcohol additives were investigated in the reversed-phase mode. The difference in the change in standard enthalpy Δ(ΔH°), entropy Δ(ΔS°), and free energy Δ(ΔG°) was calculated from the linear van't Hoff plots derived from the ln α vs 1/T curves in the temperature range 5-40°C. Unusual temperature behavior was observed on Chirobiotic TAG for most of the analytes: decreased retention times were accompanied with increased separation factors with increasing temperature, and separation was entropically-driven. For two of the studied analytes enthalpically-driven enantioseparations were observed. The elution sequence was determined in all cases, but no general rule could be established.
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Affiliation(s)
- Tímea Orosz
- Department of Inorganic and Analytical Chemistry, University of Szeged, H-6720 Szeged, Dóm tér 7, Hungary
| | - Nóra Grecsó
- Department of Inorganic and Analytical Chemistry, University of Szeged, H-6720 Szeged, Dóm tér 7, Hungary; Institute of Pharmaceutical Chemistry, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary
| | - Gyula Lajkó
- Department of Inorganic and Analytical Chemistry, University of Szeged, H-6720 Szeged, Dóm tér 7, Hungary; Institute of Pharmaceutical Chemistry, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, University of Szeged, H-6720 Szeged, Eötvös u. 6, Hungary
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX 76019-0065, USA
| | - István Ilisz
- Department of Inorganic and Analytical Chemistry, University of Szeged, H-6720 Szeged, Dóm tér 7, Hungary.
| | - Antal Péter
- Department of Inorganic and Analytical Chemistry, University of Szeged, H-6720 Szeged, Dóm tér 7, Hungary
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40
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Woiwode U, Sievers-Engler A, Zimmermann A, Lindner W, Sánchez-Muñoz OL, Lämmerhofer M. Surface-anchored counterions on weak chiral anion-exchangers accelerate separations and improve their compatibility for mass-spectrometry-hyphenation. J Chromatogr A 2017; 1503:21-31. [DOI: 10.1016/j.chroma.2017.04.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 04/25/2017] [Accepted: 04/26/2017] [Indexed: 11/16/2022]
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41
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Lajkó G, Grecsó N, Tóth G, Fülöp F, Lindner W, Ilisz I, Péter A. Liquid and subcritical fluid chromatographic enantioseparation of N
α
-Fmoc proteinogenic amino acids on Quinidine
-based zwitterionic and anion-exchanger type chiral stationary phases. A comparative study. Chirality 2017; 29:225-238. [DOI: 10.1002/chir.22700] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 01/31/2017] [Accepted: 02/03/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Gyula Lajkó
- Department of Inorganic and Analytical Chemistry; University of Szeged; Szeged Hungary
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
| | - Nóra Grecsó
- Department of Inorganic and Analytical Chemistry; University of Szeged; Szeged Hungary
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
| | - Gábor Tóth
- Institute of Medical Chemistry; University of Szeged; Szeged Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
| | - Wolfgang Lindner
- Department of Analytical Chemistry; University of Vienna; Vienna Austria
| | - István Ilisz
- Department of Inorganic and Analytical Chemistry; University of Szeged; Szeged Hungary
| | - Antal Péter
- Department of Inorganic and Analytical Chemistry; University of Szeged; Szeged Hungary
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42
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Camacho-Muñoz D, Kasprzyk-Hordern B. Simultaneous enantiomeric analysis of pharmacologically active compounds in environmental samples by chiral LC-MS/MS with a macrocyclic antibiotic stationary phase. JOURNAL OF MASS SPECTROMETRY : JMS 2017; 52:94-108. [PMID: 28061011 DOI: 10.1002/jms.3904] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 12/07/2016] [Accepted: 12/22/2016] [Indexed: 05/21/2023]
Abstract
This paper presents a multi-residue method for direct enantioselective separation of chiral pharmacologically active compounds in environmental matrices. The method is based on chiral liquid chromatography and tandem mass spectrometry detection. Simultaneous chiral discrimination was achieved with a macrocyclic glycopeptide-based column with antibiotic teicoplanin as a chiral selector working under reverse phase mode. For the first time, enantioresolution was reported for metabolites of ibuprofen: carboxyibuprofen and 2-hydroxyibuprofen with this chiral stationary phase. Moreover, enantiomers of chloramphenicol, ibuprofen, ifosfamide, indoprofen, ketoprofen, naproxen and praziquantel were also resolved. The overall performance of the method was satisfactory in terms of linearity, precision, accuracy and limits of detection. The method was successfully applied for monitoring of pharmacologically active compounds at enantiomeric level in influent and effluent wastewater and in river water. In addition, the chiral recognition and analytical performance of the teicoplanin-based column was critically compared with that of the α1 -acid glycoprotein chiral stationary phase. Copyright © 2017 John Wiley & Sons, Ltd.
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43
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Manig F, Kuhne K, von Neubeck C, Schwarzenbolz U, Yu Z, Kessler BM, Pietzsch J, Kunz-Schughart LA. The why and how of amino acid analytics in cancer diagnostics and therapy. J Biotechnol 2017; 242:30-54. [DOI: 10.1016/j.jbiotec.2016.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 11/28/2016] [Accepted: 12/01/2016] [Indexed: 12/11/2022]
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44
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Reshetova EN. Effect of the ionic strength of a mobile phase on the chromatographic retention and thermodynamic characteristics of the adsorption of enantiomers of α-phenylcarboxylic acids on a chiral adsorbent with grafted antibiotic eremomycin. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2017. [DOI: 10.1134/s0036024417010228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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45
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A Comparative Study of Enantioseparations of N α-Fmoc Proteinogenic Amino Acids on Quinine-Based Zwitterionic and Anion Exchanger-Type Chiral Stationary Phases under Hydro-Organic Liquid and Subcritical Fluid Chromatographic Conditions. Molecules 2016; 21:molecules21111579. [PMID: 27879671 PMCID: PMC6273653 DOI: 10.3390/molecules21111579] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 11/15/2016] [Accepted: 11/17/2016] [Indexed: 12/19/2022] Open
Abstract
The focus of this contribution is a comparative investigation of enantioseparations of 19 Nα-Fmoc proteinogenic amino acids on Quinine-based zwitterionic and anion-exchanger type chiral stationary phases employing hydro-organic and polar-ionic liquid and subcritical fluid chromatographic conditions. Effects of mobile phase composition (including additives, e.g., water, basis and acids) and nature of chiral selectors on the chromatographic performances were studied at different chromatographic modes. Thermodynamic parameters of the temperature dependent enantioseparation results were calculated in the temperature range 5–50 °C applying plots of lnα versus 1/T. The differences in standard enthalpy and standard entropy for a given pair of enantiomers were calculated and served as a basis for comparisons. Elution sequence in all cases was determined, where a general rule could be observed, both in liquid and subcritical fluid chromatographic mode the d-enantiomers eluted before the L ones. In both modes, the principles of ion exchange chromatography apply.
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46
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Xie SM, Yuan LM. Recent progress of chiral stationary phases for separation of enantiomers in gas chromatography. J Sep Sci 2016; 40:124-137. [DOI: 10.1002/jssc.201600808] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 08/20/2016] [Accepted: 08/21/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Sheng-Ming Xie
- Department of Chemistry; Yunnan Normal University; Kunming P. R. China
| | - Li-Ming Yuan
- Department of Chemistry; Yunnan Normal University; Kunming P. R. China
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47
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Péter A, Grecsó N, Tóth G, Fülöp F, Lindner W, Ilisz I. Ultra-trace Analysis of Enantiomeric Impurities in ProteinogenicN-Fmoc-Amino-acid Samples onCinchonaAlkaloid-based Chiral Stationary Phases. Isr J Chem 2016. [DOI: 10.1002/ijch.201600058] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Antal Péter
- Department of Inorganic and Analytical Chemistry; University of Szeged; H-6720 Szeged Dóm tér 7 Hungary
| | - Nóra Grecsó
- Department of Inorganic and Analytical Chemistry; University of Szeged; H-6720 Szeged Dóm tér 7 Hungary
- Institute of Pharmaceutical Chemistry; University of Szeged; H-6720 Szeged Eötvös u. 6 Hungary
| | - Gábor Tóth
- Institute of Medicinal Chemistry; University of Szeged; H-6720 Szeged Dóm tér 8 Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry; University of Szeged; H-6720 Szeged Eötvös u. 6 Hungary
| | - Wolfgang Lindner
- Department of Analytical Chemistry; University of Vienna; Währingerstrasse 38 1090 Vienna Austria
| | - István Ilisz
- Department of Inorganic and Analytical Chemistry; University of Szeged; H-6720 Szeged Dóm tér 7 Hungary
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48
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Enantioseparation of N -derivatized amino acids by micro-liquid chromatography/laser induced fluorescence detection using quinidine-based monolithic columns. J Pharm Biomed Anal 2016; 121:244-252. [DOI: 10.1016/j.jpba.2015.12.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 12/06/2015] [Accepted: 12/09/2015] [Indexed: 11/23/2022]
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49
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Noguchi H, Takafuji M, Maurizot V, Huc I, Ihara H. Chiral separation by a terminal chirality triggered P- helical quinoline oligoamide foldamer. J Chromatogr A 2016; 1437:88-94. [DOI: 10.1016/j.chroma.2016.01.059] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 01/26/2016] [Accepted: 01/26/2016] [Indexed: 11/25/2022]
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50
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Reshetova E. Chromatographic retention and thermodynamics of the adsorption of α-phenylcarboxylic acid enantiomers on a chiral stationary phase with a grafted antibiotic eremomycin: Effect of eluent pH. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2015.1137004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Elena Reshetova
- Institute of Technical Chemistry, The Ural Branch of the Russian Academy of Sciences, Perm, Russia
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