1
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Reshetova EN, Barashkova AS, Garifullin BF. Retention mechanisms of dipeptides on superficially porous particle vancomycin- and teicoplanin-based chiral stationary phases. J Chromatogr A 2024; 1730:465135. [PMID: 38991601 DOI: 10.1016/j.chroma.2024.465135] [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: 04/24/2024] [Revised: 06/27/2024] [Accepted: 06/29/2024] [Indexed: 07/13/2024]
Abstract
Chromatographic behavior of new chiral stationary phases (CSPs) Chiral-T and Chiral-V with teicoplanin and vancomycin antibiotics grafted onto superficially porous silica particles was studied in relation to dipeptide (DP) stereoisomers. The unbuffered water-methanol solutions were used as mobile phases (MPs). The effects of physical properties and molecular structure of analytes and selectors on retention and separation of DP stereoisomers are discussed herein. Chiral-T was evinced to exhibit high enantioselectivity, with highest α values attaining 16.5, 18.8 and 20.4 for Gly-Leu, dd/ll-Phe-Leu and ld/dl-Ala-Ala. At this point, Chiral-V did not exhibit enantioselectivity towards DP stereoisomers. The effect of MP composition on retention and enantioseparation of DPs was investigated. Lipophilicity of DPs was found to be an essential factor in the dependence of their retention vs. methanol concentration in МPs. Lipophobic DPs were eluted more quickly by water-rich solvents, with lipophilic DPs exhibiting an asymmetric U-shaped, or a descending dependence of retention factor vs. the methanol percentage on Chiral-T or Chiral-V, respectively. A theoretical model taking into account interaction of both solvents of a binary MP with both an analyte and adsorption sites was successfully applied so as to approximate and interpret the dependences of DP retention (monotonic and U-shaped) vs. a modifier content in MP. Water molecules were evinced to predominantly participate in competitive adsorption with DP molecules. The model predicted better solvation of lipophilic DPs by methanol and better solvation of lipophobic DPs by water. An attempt was made to verify the possibility of modeling by molecular docking the processes occurring during interaction between DP stereoisomers and CSPs, including consideration of the influence of competitive binding of eluent molecules in selector cavity.
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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 St., Perm 614013, Russia.
| | - Anna S Barashkova
- Institute of Technical Chemistry of the Ural Branch of the Russian Academy of Sciences, 3 Academician Korolev St., Perm 614013, Russia; Department of Chemistry and Biotechnology, Perm National Research Polytechnic University, 29 Komsomolsky Ave., Perm 614990, Russia
| | - Bulat F Garifullin
- The A.E. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Academician Arbuzov St., Kazan 420088, Russia
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2
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Ozaki M, Nakade T, Shimotsuma M, Ikeda A, Kuranaga T, Kakeya H, Hirose T. Simultaneous analysis of DL-Amino acids in foods and beverages using a highly sensitive chiral resolution labeling reagent. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1244:124239. [PMID: 39059318 DOI: 10.1016/j.jchromb.2024.124239] [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: 03/05/2024] [Revised: 06/28/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024]
Abstract
Amino acids with various functions are abundant in living organisms and foods. Recent advances in analytical technology show that trace amounts of D-amino acids exist in living organisms and foods. In addition, studies show that these amino acids are involved in various physiological functions that differ from those of L-amino acids. Thus, a technique for analyzing DL-amino acids is required. However, the simultaneous separation and highly sensitive detection of DL-amino acids are complicated; therefore, highly sensitive analytical methods that can rapidly separate and identify compounds are required. We previously developed our original chiral resolution labeling reagents for the separation and highly sensitive detection of DL-amino acids. Here, we developed a simple method for the rapid separation and highly sensitive detection of DL-amino acids in various foods and beverages by liquid chromatography-mass spectrometry (LC-MS) using an octadecyl (C18) column after labeling with 1-fluoro-2,4-dinitrophenyl-5-D-leucine-N,N-dimethylethylenediamineamide (D-FDLDA; enantiomeric excess > 99.9 %). In addition, we synthesized a stable isotope (13C6)-labeled D-FDLDA (13C6-D-FDLDA) and established an analytical method that can accurately identify the peak of each DL-amino acid. MS sensitivity of DL-amino acids labeled with our labeling reagent was higher than that of conventional labeling reagents (Marfey's reagents). The labeling reagent was neither desorbed from each DL-amino acid nor degraded for at least 1 week at 4 °C. Furthermore, we determined the DL-amino acid contents in foods and beverages using the proposed method, and differences in the total amino acid content and D/L ratio in each food and beverage were observed.
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Affiliation(s)
- Makoto Ozaki
- Nacalai Tesque, Inc., Ishibashi Kaide-cho, Muko-shi, Kyoto 617-0004, Japan
| | - Tomomi Nakade
- Nacalai Tesque, Inc., Ishibashi Kaide-cho, Muko-shi, Kyoto 617-0004, Japan
| | - Motoshi Shimotsuma
- Nacalai Tesque, Inc., Ishibashi Kaide-cho, Muko-shi, Kyoto 617-0004, Japan
| | - Akari Ikeda
- TAIYO NIPPON SANSO Corporation, SI Innovation Center, 2008-2 Wada, Tama, Tokyo 206-0001, Japan
| | - Takefumi Kuranaga
- Department of System Chemotherapy and Molecular Sciences, Division of Medicinal Frontier Sciences, Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Kyoto 606-8501, Japan
| | - Hideaki Kakeya
- Department of System Chemotherapy and Molecular Sciences, Division of Medicinal Frontier Sciences, Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Kyoto 606-8501, Japan.
| | - Tsunehisa Hirose
- Nacalai Tesque, Inc., Ishibashi Kaide-cho, Muko-shi, Kyoto 617-0004, Japan.
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3
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Aslani S, Armstrong DW. Fast, sensitive LC-MS resolution of α -hydroxy acid biomarkers via SPP-teicoplanin and an alternative UV detection approach. Anal Bioanal Chem 2024; 416:3007-3017. [PMID: 38565719 DOI: 10.1007/s00216-024-05248-2] [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: 01/16/2024] [Revised: 02/20/2024] [Accepted: 02/28/2024] [Indexed: 04/04/2024]
Abstract
Enantioseparation of α -hydroxy acids is essential since specific enantiomers of these compounds can be used as disease biomarkers for diagnosis and prognosis of cancer, brain diseases, kidney diseases, diabetes, etc., as well as in the food industry to ensure quality. HPLC methods were developed for the enantioselective separation of 11 α -hydroxy acids using a superficially porous particle-based teicoplanin (TeicoShell) chiral stationary phase. The retention behaviors observed for the hydroxy acids were HILIC, reversed phase, and ion-exclusion. While both mass spectrometry and UV spectroscopy detection methods could be used, specific mobile phases containing ammonium formate and potassium dihydrogen phosphate, respectively, were necessary with each approach. The LC-MS mode was approximately two orders of magnitude more sensitive than UV detection. Mobile phase acidity and ionic strength significantly affected enantioresolution and enantioselectivity. Interestingly, higher ionic strength resulted in increased retention and enantioresolution. It was noticed that for formate-containing mobile phases, using acetonitrile as the organic modifier usually resulted in greater enantioresolution compared to methanol. However, sometimes using acetonitrile with high ammonium formate concentrations led to lengthy retention times which could be avoided by using methanol as the organic modifier. Additionally, the enantiomeric purities of single enantiomer standards were determined and it was shown that almost all standards contained some levels of enantiomeric impurities.
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Affiliation(s)
- Saba Aslani
- Department of Chemistry and Biochemistry, University of Texas at Arlington, 700 Planetarium Place, Arlington, TX, 76019, USA
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, University of Texas at Arlington, 700 Planetarium Place, Arlington, TX, 76019, USA.
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4
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Kuncová A, Svoboda J, Tůma J, Asnin L, Schug K, Kohout M. Chiral zwitterionic stationary phases based on Cinchona alkaloids and dipeptides - design, synthesis and application in chiral separation. J Chromatogr A 2024; 1717:464664. [PMID: 38271770 DOI: 10.1016/j.chroma.2024.464664] [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: 08/25/2023] [Revised: 12/29/2023] [Accepted: 01/17/2024] [Indexed: 01/27/2024]
Abstract
Chiral resolution of polar organic compounds such as amino acids and peptides represents an important chromatographic task due to increasing significance of natural species, which play important signaling and regulatory roles in the living organisms. Despite the number of available chiral stationary phases, this task remains challenging, since not many of the commercially available systems are capable to resolve non-derivatized zwitterionic species. In this study, we present a target-oriented design of a new class of chiral selectors. Pursuing the goal to separate amino acids, and especially short peptides, we have combined Cinchona alkaloids - quinine and quinidine - with three different biogenic dipeptides. We have synthesized six different chiral stationary phases, with selector loading of ∼200 μmol g-1, and tested their chiral recognition capabilities for acidic, basic and zwitterionic analytes using various mobile phases. We have observed that all chiral stationary phases retain the chiral anion exchange capability known for commercially available Cinchona-based columns leading to baseline or partial resolution of six out of ten analytes. The performance in chiral resolution of basic analytes is not optimum due to the weak cation exchange character of the peptidic residue. However, we report on encouraging results in the chiral resolution of short peptides, for which, depending on their structure, we see the chiral resolution of up to three stereoisomers (from four possible) in a preliminary screening.
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Affiliation(s)
- Anežka Kuncová
- Department of Organic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic
| | - Jiří Svoboda
- Department of Organic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic
| | - Jiří Tůma
- Department of Organic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic
| | - Leonid Asnin
- Department of Chemistry and Biotechnology, Perm National Research Polytechnic University, 29 Komsomolsky Al, 614990 Perm, Russia
| | - Kevin Schug
- Department of Chemistry and Biochemistry, College of Sciences, UT Arlington, 700 Planetarium PI, TX 760 19, Arlington, United States
| | - Michal Kohout
- Department of Organic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic.
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5
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Armstrong DW, Berthod A. Occurrence of D-amino acids in natural products. NATURAL PRODUCTS AND BIOPROSPECTING 2023; 13:47. [PMID: 37932633 PMCID: PMC10628113 DOI: 10.1007/s13659-023-00412-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/19/2023] [Indexed: 11/08/2023]
Abstract
Since the identified standard genetic code contains 61 triplet codons of three bases for the 20 L-proteinogenic amino acids (AAs), no D-AA should be found in natural products. This is not what is observed in the living world. D-AAs are found in numerous natural compounds produced by bacteria, algae, fungi, or marine animals, and even vertebrates. A review of the literature indicated the existence of at least 132 peptide natural compounds in which D-AAs are an essential part of their structure. All compounds are listed, numbered and described herein. The two biosynthetic routes leading to the presence of D-AA in natural products are: non-ribosomal peptide synthesis (NRPS), and ribosomally synthesized and post-translationally modified peptide (RiPP) synthesis which are described. The methods used to identify the AA chirality within naturally occurring peptides are briefly discussed. The biological activity of an all-L synthetic peptide is most often completely different from that of the D-containing natural compounds. Analyzing the selected natural compounds showed that D-Ala, D-Val, D-Leu and D-Ser are the most commonly encountered D-AAs closely followed by the non-proteinogenic D-allo-Thr. D-Lys and D-Met were the least prevalent D-AAs in naturally occurring compounds.
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Affiliation(s)
- Daniel W Armstrong
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, 76019, USA.
| | - Alain Berthod
- Institut des Sciences Analytiques, CNRS, University of Lyon 1, 69100, Villeurbanne, France
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6
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Li F, Karongo R, Mavridou D, Horak J, Sievers-Engler A, Lämmerhofer M. Automated sample preparation with 6-Aminoquinolyl-N-hydroxysuccinimidyl carbamate and iodoacetamide derivatization reagents for enantioselective liquid chromatography tandem mass spectrometry amino acid analysis. J Chromatogr A 2023; 1708:464349. [PMID: 37696129 DOI: 10.1016/j.chroma.2023.464349] [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: 08/09/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/13/2023]
Abstract
Enantioselective amino acid analysis is gaining increasing importance in pharmaceutical, biomedical and food sciences. While there are many methods available for enantiomer separation of amino acids, the simultaneous analysis of all chiral proteinogenic amino acids by a single method with one column and a single condition is still challenging. Herein, we report an enantioselective high-performance liquid chromatography-tandem mass spectrometry (LC-MS) assay using Chiralpak QN-AX as chiral column. With 6-aminoquinolyl-N-hydrosysuccinimidyl carbamate (AQC) as derivatization reagent, efficient enantioselective separation of D- and L-amino acids using HPLC has become possible. Thiol-containing amino acids like Cys are alkylated prior to AQC-labelling. A protocol for automated sample preparation including both derivatization step and calibrator preparation is presented. For compensating matrix effects, u-13C15N-labelled internal standards (IS) were employed. The method was validated and applied to the enantioselective analysis of amino acids in a bacterial fermentation broth.
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Affiliation(s)
- Feiyang Li
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Ryan Karongo
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; Invite GmbH, Formulation Technology, 42096 Wuppertal, Germany; Bayer AG, Research & Development, Pharmaceuticals, Analytical Development API, 42096 Wuppertal, Germany
| | - Despoina Mavridou
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Jeannie Horak
- Division of Metabolic and Nutritional Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich Medical Center, Lindwurmstraße 4, 80337 Munich, Germany
| | - Adrian Sievers-Engler
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany.
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7
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Fouad A, El-Sayed DH, Salman BE, Bakr HH, Adel SE, Alzarak TM, Mahmoud A. Macrocyclic Antibiotics as Effective Chiral Selectors in Liquid Chromatography for Enantiomeric Separation of Pharmaceutical Compounds: A Review. Crit Rev Anal Chem 2023:1-19. [PMID: 37342891 DOI: 10.1080/10408347.2023.2224442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2023]
Abstract
Chiral separation techniques play a crucial role in the pharmaceutical industry, where the enantiomeric purity of drugs can have a significant impact on their efficacy and safety. Macrocyclic antibiotics are highly effective chiral selectors used in various chiral separation techniques, including LC, HPLC, SMB, and TLC, offering reproducible results and a wide range of applications. However, developing robust and efficient immobilization mechanisms for these chiral selectors remains a challenge. This review article focuses on various immobilization approaches, such as immobilization, coating, encapsulation, and photosynthesis, that have been applied to immobilize macrocyclic antibiotics on their support. Commercially available macrocyclic antibiotics for conventional liquid chromatography include Vancomycin, Norvancomycin, Eremomycin, Teicoplanin, Ristocetin A, Rifamycin, Avoparcin, Bacitracin, and others. In addition, capillary (nano) liquid chromatography has also been used in chiral separation utilizing Vancomycin, Polymyxin B, Daptomycin, and Colistin Sulfate. Macrocyclic antibiotic-based CSPs have been extensively applied due to their reproducible results, ease of use, and broad range of applications, capable of separating a large number of racemates.
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Affiliation(s)
- Ali Fouad
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | | | | | - Hanan H Bakr
- Faculty of Science, Tanta University, Tanta, Egypt
| | - Shahd E Adel
- Faculty of Science, Tanta University, Tanta, Egypt
| | | | - Abdelrahman Mahmoud
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
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8
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Silica Immobilised Chloro- and Amido-Derivatives of Eremomycine as Chiral Stationary Phases for the Enantioseparation of Amino Acids by Reversed-Phase Liquid Chromatography. Molecules 2022; 28:molecules28010085. [PMID: 36615283 PMCID: PMC9822235 DOI: 10.3390/molecules28010085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/08/2022] [Accepted: 12/17/2022] [Indexed: 12/25/2022] Open
Abstract
Macrocyclic glycopeptide antibiotics immobilized on silica are one of the effective classes of stationary phases for chiral recognition and HPLC separation of a wide range of optically active compounds. Enantioselectivity primarily depends on the chemical structure of the chiral ligand, immobilization chemistry, and separation conditions. In the present work, three new chiral stationary phases (CSPs) based on macrocyclic antibiotic eremomycin were prepared and investigated for enantioseparation of amino acids. Two eremomycin derivatives, including simple non-substituted amide and bulky adamantyl amide, provided important information on the role of the carboxylic group in the eremomycin structure in the chiral recognition mechanism concerning amino acid optical isomers. One more CSP having a chlorine atom in the same position elucidates the role of the first aromatic ring in the eremomycin structure as a crucial point for chiral recognition. CSP with immobilized chloreremomycin was the most successful among the phases prepared in this work. It was additionally investigated under various separation conditions, including the type and content of the organic solvent in the eluent, the effects of different additives, and the concentration and pH of the buffer. Importantly, an efficient enantioselective separation of amino acids was achieved with pure water as the eluent.
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9
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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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10
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Varfaj I, Pershina MV, Stepanova MV, Sardella R, Asnin LD, Carotti A. Elucidation of retention mechanism of dipeptides on a ristocetin A-based chiral stationary phase using a combination of chromatographic and molecular simulation techniques. J Chromatogr A 2022; 1675:463158. [DOI: 10.1016/j.chroma.2022.463158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/12/2022] [Accepted: 05/17/2022] [Indexed: 10/18/2022]
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11
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Guo S, Huang C, Bo C, Ma S, Gong B, Ou J. Comparison of vancomycin-immobilized chiral stationary phase with its derivative for enantioseparation of drugs in high-performance liquid chromatography. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Betzenbichler G, Huber L, Kräh S, Morkos MLK, Siegle AF, Trapp O. Chiral stationary phases and applications in gas chromatography. Chirality 2022; 34:732-759. [PMID: 35315953 DOI: 10.1002/chir.23427] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/06/2022] [Accepted: 02/07/2022] [Indexed: 12/15/2022]
Abstract
Chiral compounds are ubiquitous in nature and play a pivotal role in biochemical processes, in chiroptical materials and applications, and as chiral drugs. The analysis and determination of the enantiomeric ratio (er) of chiral compounds is of enormous scientific, industrial, and economic importance. Chiral separation techniques and methods have become indispensable tools to separate chiral compounds into their enantiomers on an analytical as well on a preparative level to obtain enantiopure compounds. Chiral gas chromatography and high-performance liquid chromatography have paved the way and fostered several research areas, that is, asymmetric synthesis and catalysis in organic, medicinal, pharmaceutical, and supramolecular chemistry. The development of highly enantioselective chiral stationary phases was essential. In particular, the elucidation and understanding of the underlying enantioselective supramolecular separation mechanisms led to the design of new chiral stationary phases. This review article focuses on the development of chiral stationary phases for gas chromatography. The fundamental mechanisms of the recognition and separation of enantiomers and the selectors and chiral stationary phases used in chiral gas chromatography are presented. An overview over syntheses and applications of these chiral stationary phases is presented as a practical guidance for enantioselective separation of chiral compound classes and substances by gas chromatography.
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Affiliation(s)
| | - Laura Huber
- Department of Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Sabrina Kräh
- Department of Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany
| | | | - Alexander F Siegle
- Department of Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Oliver Trapp
- Department of Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany
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13
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Chiral secondary amino acids, their importance, and methods of analysis. Amino Acids 2022; 54:687-719. [PMID: 35192062 DOI: 10.1007/s00726-022-03136-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/04/2022] [Indexed: 11/01/2022]
Abstract
Naturally occurring secondary amino acids, with proline as the main representative, contain an alpha-imino group in a cycle that is typically four-, five-, and six-membered. The unique ring structure exhibits exceptional properties-conformational rigidity, chemical stability, and specific roles in protein structure and folding. Many proline analogues have been used as valuable compounds for the study of metabolism of both prokaryotic and eukaryotic cells and for the synthesis of compounds with desired biological, pharmaceutical, or industrial properties. The D-forms of secondary amino acids play different roles in living organisms than the L-forms. They have different metabolic pathways, biological, physiological, and pharmacological effects, they can be indicators of changes and also serve as biomarkers of diseases. In the scientific literature, the number of articles examining D-amino acids in biological samples is increasing. The review summarises information on the occurrence and importance of D- and L-secondary amino acids-azetidic acid, proline, hydroxyprolines, pipecolic, nipecotic, hydroxypipecolic acids and related peptides containing these D-AAs, as well as the main analytical methods (mostly chromatographic) used for their enantiomeric determination in different matrices (biological samples, plants, food, water, and soil).
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14
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Carling RS, John K, Churchus R, Turner C, Dalton RN. Validation of a rapid, comprehensive and clinically relevant amino acid profile by underivatised liquid chromatography tandem mass spectrometry. Clin Chem Lab Med 2021; 58:758-768. [PMID: 31622240 DOI: 10.1515/cclm-2019-0604] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/25/2019] [Indexed: 11/15/2022]
Abstract
Background Quantification of plasma amino acids is key to the diagnosis of inherited defects of amino acid synthesis, catabolism and transport, many of which present as clinical emergencies. The utility of this test is limited by the long analysis time and subsequent inability of laboratories to provide results in real-time. Traditionally, analysis has been performed by ion exchange chromatography (IEC) but recently there has been a move towards liquid chromatography tandem mass spectrometry (LC-MS/MS) which provides the potential for faster analysis. However, the necessity to derivatise the sample and/or utilise an ion-pair reagent, combined with lack of commercially available stable isotope internal standards (IS) has prevented laboratories fully exploiting the benefits of this methodology. We describe an underivatised LC-MS/MS method enabling patient results to be reported with an improved turnaround time (<1 h). Methods Methanolic IS was added to plasma (10 μL) to precipitate protein. Following centrifugation amino acids were analysed by LC-MS/MS using selected reaction monitoring (SRM) for each analyte and corresponding IS. Results Patient samples (n = 57) and external quality assessment (EQA) material (n = 11) were analysed and results compared with IEC. Comparable accuracy and precision were obtained with 15-min analysis time. Conclusions This method enables the analysis of a clinically comprehensive amino acid profile without the need for derivatisation/ion-pair reagents and benefitting from improved analytical quantitation through multipoint calibration and use of stable isotope IS. The analysis time is fast in comparison to IEC, improves efficiency of laboratory workflow and enables stat analysis of clinically urgent samples.
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Affiliation(s)
- Rachel S Carling
- Biochemical Sciences, Viapath, Guys and St Thomas' NHSFT, London, UK.,GKT School of Medical Education, King's College, London, UK
| | - Kate John
- Biochemical Sciences, Viapath, Guys and St Thomas' NHSFT, London, UK
| | - Richard Churchus
- Biochemical Sciences, Viapath, Guys and St Thomas' NHSFT, London, UK
| | - Charles Turner
- SpOtOn Clinical Diagnostics Ltd, Guy's Hospital, London, UK
| | - R Neil Dalton
- SpOtOn Clinical Diagnostics Ltd, Guy's Hospital, London, UK
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15
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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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16
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Jiang H, Yang K, Zhao X, Zhang W, Liu Y, Jiang J, Cui Y. Highly Stable Zr(IV)-Based Metal-Organic Frameworks for Chiral Separation in Reversed-Phase Liquid Chromatography. J Am Chem Soc 2020; 143:390-398. [PMID: 33356210 DOI: 10.1021/jacs.0c11276] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Separation of racemic mixtures is of great importance and interest in chemistry and pharmacology. Porous materials including metal-organic frameworks (MOFs) have been widely explored as chiral stationary phases (CSPs) in chiral resolution. However, it remains a challenge to develop new CSPs for reversed-phase high-performance liquid chromatography (RP-HPLC), which is the most popular chromatographic mode and accounts for over 90% of all separations. Here we demonstrated for the first time that highly stable Zr-based MOFs can be efficient CSPs for RP-HPLC. By elaborately designing and synthesizing three tetracarboxylate ligands of enantiopure 1,1'-biphenyl-20-crown-6, we prepared three chiral porous Zr(IV)-MOFs with the framework formula [Zr6O4(OH)8(H2O)4(L)2]. They share the same flu topological structure but channels of different sizes and display excellent tolerance to water, acid, and base. Chiral crown ether moieties are periodically aligned within the framework channels, allowing for stereoselective recognition of guest molecules via supramolecular interactions. Under acidic aqueous eluent conditions, the Zr-MOF-packed HPLC columns provide high resolution, selectivity, and durability for the separation of a variety of model racemates, including unprotected and protected amino acids and N-containing drugs, which are comparable to or even superior to several commercial chiral columns for HPLC separation. DFT calculations suggest that the Zr-MOF provides a confined microenvironment for chiral crown ethers that dictates the separation selectivity.
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Affiliation(s)
- Hong Jiang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Kuiwei Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Xiangxiang Zhao
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wenqiang Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yan Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jianwen Jiang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Yong Cui
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
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17
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Gogolishvili OS, Reshetova EN. Chromatographic enantioseparation and adsorption thermodynamics of hydroxy acids and their derivatives on antibiotic-based chiral stationary phases as affected by eluent pH. Chromatographia 2020. [DOI: 10.1007/s10337-020-03978-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Carenzi G, Sacchi S, Abbondi M, Pollegioni L. Direct chromatographic methods for enantioresolution of amino acids: recent developments. Amino Acids 2020; 52:849-862. [DOI: 10.1007/s00726-020-02873-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/05/2020] [Indexed: 12/24/2022]
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19
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Asnin LD, Kopchenova MV, Vozisov SE, Klochkova MA, Klimova YA. Enantioselective retention mechanisms of dipeptides on antibiotic-based chiral stationary phases. II. Effect of the methanol content in the mobile phase. J Chromatogr A 2020; 1626:461371. [PMID: 32797850 DOI: 10.1016/j.chroma.2020.461371] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/22/2020] [Accepted: 06/24/2020] [Indexed: 11/28/2022]
Abstract
Effect of mobile phase (water-methanol) composition on the enantioseparation of dipeptides on the chiral stationary phase Chirobiotic R was investigated using Ala-Ala, Leu-Leu, Gly-Leu, and Leu-Gly as case studies. The lipophilicity of dipeptides was found to be an essential factor in the dependence of their retention on the methanol percentage, the retention factor of lipophobic dipeptides increasing monotonously and that of lipophilic dipeptides changing according to an asymmetric U-shaped trajectory as methanol concentration increases. The behavior of enantioselectivity as a function of the methanol content also depends on the lipophilicity of dipeptide. For lipophilic Leu-Leu, the dependence has a dome-like shape, and for more lipophobic dipeptides, Ala-Ala and Gly-Leu, it is an increasing function of the methanol concentration. The importance of solvation equilibria in the bulk liquid and on the surface of the stationary phase for the total retention is discussed from the thermodynamic point of view. Special consideration is given to the adsorption of the water-methanol mixture on the surface of the Chirobiotic R stationary phase.
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Affiliation(s)
- Leonid D Asnin
- Perm National Research Polytechnic University, 29 Komsomolsky Al., Perm 614990, Russia.
| | | | - Stepan E Vozisov
- Perm National Research Polytechnic University, 29 Komsomolsky Al., Perm 614990, Russia
| | - Mariya A Klochkova
- Perm National Research Polytechnic University, 29 Komsomolsky Al., Perm 614990, Russia
| | - Yana A Klimova
- Perm National Research Polytechnic University, 29 Komsomolsky Al., Perm 614990, Russia
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20
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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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21
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Sardella R, Ianni F, Cossignani L, Aldini G, Carotti A. Binding modes identification through molecular dynamic simulations: A case study with carnosine enantiomers and the Teicoplanin A2-2-based chiral stationary phase. J Sep Sci 2020; 43:1728-1736. [PMID: 32112671 DOI: 10.1002/jssc.202000092] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/25/2020] [Accepted: 02/26/2020] [Indexed: 12/12/2022]
Abstract
In the present study, an in silico methodology able to define the binding modes adopted by carnosine enantiomers in the setting of the chiral recognition process is described. The inter- and intramolecular forces involved in the enantioseparation process with the Teicoplanin A2-2 chiral selector and carnosine as model compound are successfully identified. This approach fully rationalizes, at a molecular level, the (S) < (R) enantiomeric elution order obtained under reversed-phase conditions. Consistent explanations were achieved by managing molecular dynamics results with advanced techniques of data analysis. As a result, the time-dependent identification of all the interactions simultaneously occurring in the chiral selector-enantiomeric analyte binding process was obtained. Accordingly, it was found that only (R)-carnosine is able to engage a stabilizing charge-charge interaction through its ionized imidazole ring with the carboxylate counter-part on the chiral selector. Instead, (S)-carnosine establishes intramolecular contacts between its ionized functional groups, that limit its conformational freedom and impair the association with the chiral selector unit.
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Affiliation(s)
- Roccaldo Sardella
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, Perugia, 06123, Italy
| | - Federica Ianni
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, Perugia, 06123, Italy
| | - Lina Cossignani
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, Perugia, 06123, Italy
| | - Giancarlo Aldini
- Department of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, Milano, 20133, Italy
| | - Andrea Carotti
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, Perugia, 06123, Italy
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22
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Miller L, Yue L. Chiral separation of underivatized amino acids in supercritical fluid chromatography with chiral crown ether derived column. Chirality 2020; 32:981-989. [PMID: 32141123 DOI: 10.1002/chir.23204] [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: 12/18/2019] [Revised: 02/07/2020] [Accepted: 02/13/2020] [Indexed: 12/17/2022]
Abstract
The supercritical fluid chromatographic separation of underivatized amino acids was explored using immobilized chiral crown ether column CROWNPAK CR-I (+) and mass spectrometric detection. The type of modifier, acidic additives, and the role of water were investigated. Enantioseparation was achieved for all 18 amino acids investigated with short retention times (less than 3 minutes) and average resolution of greater than 5.0. Analysis of enantiomerically pure standards demonstrated the D enantiomer eluted first for all amino acids using a CROWNPAK CR-I (+) column.
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Affiliation(s)
| | - Lei Yue
- Amgen Research, Amgen, Cambridge, Massachusetts
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23
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Identification of d-amino acids in tea leaves. Food Chem 2020; 317:126428. [PMID: 32113139 DOI: 10.1016/j.foodchem.2020.126428] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 02/15/2020] [Accepted: 02/17/2020] [Indexed: 11/23/2022]
Abstract
During manufacturing processes and in the storage period of tea, amino acids may undergo enantiomeric isomerization, converting their l- to d-forms. To examine the hypothesis, a method was developed for the analysis of the enantiomers in tea leaves. After enriched by ion-exchange solid-phase extraction, the enantiomeric pairs were separated by a chiral high performance liquid chromatography (HPLC) and subsequently detected and identified by using a high resolution quadrupole time-of-flight mass spectrometry (QTOF MS). Only l-forms of amino acids were found in fresh tea leaves. A total of 11 d-amino acids were found in 19 tea samples, ranging from trace amount to 43 µg/g. The results indicated that the enantioisomerization of amino acids occurred in post-harvest tea leaves, and affected by process conditions and storage time.
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24
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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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25
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Quantification of aminobutyric acids and their clinical applications as biomarkers for osteoporosis. Commun Biol 2020; 3:39. [PMID: 31969651 PMCID: PMC6976694 DOI: 10.1038/s42003-020-0766-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 01/08/2020] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis is a highly prevalent chronic aging-related disease that frequently is only detected after fracture. We hypothesized that aminobutyric acids could serve as biomarkers for osteoporosis. We developed a quick, accurate, and sensitive screening method for aminobutyric acid isomers and enantiomers yielding correlations with bone mineral density (BMD) and osteoporotic fracture. In serum, γ-aminobutyric acid (GABA) and (R)-3-aminoisobutyric acid (D-BAIBA) have positive associations with physical activity in young lean women. D-BAIBA positively associated with hip BMD in older individuals without osteoporosis/osteopenia. Lower levels of GABA were observed in 60–80 year old women with osteoporotic fractures. Single nucleotide polymorphisms in seven genes related to these metabolites associated with BMD and osteoporosis. In peripheral blood monocytes, dihydropyrimidine dehydrogenase, an enzyme essential to D-BAIBA generation, exhibited positive association with physical activity and hip BMD. Along with their signaling roles, BAIBA and GABA might serve as biomarkers for diagnosis and treatments of osteoporosis. Wang et al. develop an LC/MS based screening method to separate and quantify aminobutyric acids isoforms. Applying it to osteoporosis clinical studies, their method yields important correlations with bone mineral density and osteoporotic fracture and highlight the role of γ-aminobutyric acid and β-aminoisobutyric acid as biomarkers for osteoporosis.
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26
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Pucciarini L, González-Ruiz V, Zangari J, Martinou JC, Natalini B, Sardella R, Rudaz S. Development and validation of a chiral UHPLC-MS method for the analysis of cysteine enantiomers in biological samples. J Pharm Biomed Anal 2020; 177:112841. [DOI: 10.1016/j.jpba.2019.112841] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/22/2019] [Accepted: 08/26/2019] [Indexed: 12/12/2022]
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27
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Roy D, Armstrong DW. Fast super/subcritical fluid chromatographic enantioseparations on superficially porous particles bonded with broad selectivity chiral selectors relative to fully porous particles. J Chromatogr A 2019; 1605:360339. [PMID: 31350029 DOI: 10.1016/j.chroma.2019.06.060] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 06/24/2019] [Accepted: 06/28/2019] [Indexed: 12/24/2022]
Abstract
Superficially porous particles (SPPs) have shown advantages in enantiomeric separations in HPLC by conserving selectivity while providing higher efficiency separations with significantly reduced analysis times. The question arises as to whether the same advantages can be found to the same extent in super/subcritical fluid chromatography. In this work, the low viscosity advantage of carbon dioxide/MeOH mixtures is coupled with high-efficiency 2.7 μm superficially porous particles for enantiomeric separations. Given the fact that the viscosity of the mobile phase is typically ten times lower than liquid mobile phases it is possible to use flow rates as high as 14 mL/min on 5 cm packed columns. Superficially porous particles (SPPs) were grafted with teicoplanin (TeicoShell), a chemically modified macrocyclic glycopeptide (NicoShell), vancomycin (VancoShell), and isopropyl derivatized cyclofructan-6 (LarihcShell-P). One hundred chiral analytes were separated in a very short time frame, as little as 0.2 min (13 s). Even shorter separations can be obtained with advances in SFC instrumentation. The LarihcShell-P is the only chiral crown ether-based selector which showed high selectivity for primary amines. The Teicoshell column offered unique separations for acidic and neutral analytes. The NicoShell and the VancoShell were useful in separating amine (secondary and tertiary) containing pharmaceutical drugs and controlled substances. By chemically modifying a macrocyclic glycopeptide (NicoShell) we report the first enantiomeric separation of nicotine under SFC conditions within 3 min with a resolution of >3. Additionally, van Deemter plots are constructed comparing the fully porous particles and superficially porous particles bonded with the same chiral selectors. In toto the SPP advantages also were found for SFC. However instrumental shortcomings involving extra column effects and pressure limitations need to be addressed by instrument manufacturers to realize the full advantages of SPPs and other smaller particle supports.
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Affiliation(s)
- Daipayan Roy
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX, United States
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX, United States.
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28
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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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29
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Gogolishvili OS, Reshetova EN. Effect of the Concentration of an Organic Modifier in a Water–Ethanol Mobile Phase on the Retention and Thermodynamics of Adsorption of Enantiomers of Hydroxy Acids and Their Derivatives on a Chiral Adsorbent with a Grafted Antibiotic Eremomycin. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s0036024419060128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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Shapovalova EN, Fedorova IA, Anan’eva IA, Shpigun OA. Macrocyclic Antibiotics as Chiral Selectors in High-Performance Liquid Chromatography and Capillary Electrophoresis. JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1134/s1061934818110114] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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31
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Yang XR, Song XD, Zhu HY, Cheng CJ, Yu HR, Zhang HH. Novel Smart Polymer-Brush-Modified Magnetic Graphene Oxide for Highly Efficient Chiral Recognition and Enantioseparation of Tryptophan Enantiomers. ACS APPLIED BIO MATERIALS 2018; 1:1074-1083. [DOI: 10.1021/acsabm.8b00294] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xiao-Rong Yang
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu, Sichuan 610041, P. R. China
| | - Xiao-Dong Song
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu, Sichuan 610041, P. R. China
| | - Han-Yan Zhu
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu, Sichuan 610041, P. R. China
| | - Chang-Jing Cheng
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu, Sichuan 610041, P. R. China
| | - Hai-Rong Yu
- College of Chemistry and Environment Protection Engineering, Southwest Minzu University, Chengdu, Sichuan 610041, P. R. China
| | - Huai-Hao Zhang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
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32
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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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33
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Reshetova E, Gogolishvili O. Adsorption of mandelic acid enantiomers on a chiral stationary phase with a grafted antibiotic eremomycin. J LIQ CHROMATOGR R T 2018. [DOI: 10.1080/10826076.2018.1459305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Elena Reshetova
- Institute of Technical Chemistry the Ural Branch of the Russian Academy of Sciences, Perm, Russia
| | - Otar Gogolishvili
- Institute of Technical Chemistry the Ural Branch of the Russian Academy of Sciences, Perm, Russia
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Determination of enantiomeric excess of some amino acids by second-order calibration of kinetic-fluorescence data. Anal Biochem 2018; 550:15-26. [PMID: 29634910 DOI: 10.1016/j.ab.2018.04.004] [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: 12/22/2017] [Revised: 04/05/2018] [Accepted: 04/06/2018] [Indexed: 01/22/2023]
Abstract
In this investigation a new non-separative kinetic-spectroflourimetric method is proposed for the determination of lysine (lys), leucine (leu) and phenylalanine (phe) enantiomers as their o-phthaldialdehyde (OPA) derivatives in the presence of an optically active chiral thiol compound, 1-mercapto-2-propanol (MP). At ambient temperature and in the borate buffer media of pH 9.6, MP, OPA, as highly selective fluorogenic reagents, and amino acid (AA) enantiomers reacts with each other to yield two fluorescent diasteriomers of D and L-AA with maximum difference in fluorescence intensity at about 450 nm. To achieve information from the small spectral changes, the data are analyzed by Multivariate Curve Resolution Alternating Least Squares (MCR-ALS) method. Linear calibration curves are achieved to distinct D and L-lys, leu and phe in different mole ratios by applying appropriate constraints in MCR-ALS procedures. This is the first application of MCR-ALS in determination of enantiomeric excess (ee) using OPA/MP adduct as chiral reagent, which benefits from direct time dependent-fluorescence spectral analysis and does not require prior separation of chiral analytes. Both the cross-validated correlation coefficient (Q2) and root mean squares error of prediction (RMSEP) indicated satisfactory prediction ability of this method.
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N L Batista A, M Dos Santos F, Batista JM, Cass QB. Enantiomeric Mixtures in Natural Product Chemistry: Separation and Absolute Configuration Assignment. Molecules 2018; 23:molecules23020492. [PMID: 29473869 PMCID: PMC6017502 DOI: 10.3390/molecules23020492] [Citation(s) in RCA: 35] [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: 12/21/2017] [Revised: 01/23/2018] [Accepted: 02/21/2018] [Indexed: 01/13/2023] Open
Abstract
Chiral natural product molecules are generally assumed to be biosynthesized in an enantiomerically pure or enriched fashion. Nevertheless, a significant amount of racemates or enantiomerically enriched mixtures has been reported from natural sources. This number is estimated to be even larger since the enantiomeric purity of secondary metabolites is rarely checked in the natural product isolation pipeline. This latter fact may have drastic effects on the evaluation of the biological activity of chiral natural products. A second bottleneck is the determination of their absolute configurations. Despite the widespread use of optical rotation and electronic circular dichroism, most of the stereochemical assignments are based on empirical correlations with similar compounds reported in the literature. As an alternative, the combination of vibrational circular dichroism and quantum chemical calculations has emerged as a powerful and reliable tool for both conformational and configurational analysis of natural products, even for those lacking UV-Vis chromophores. In this review, we aim to provide the reader with a critical overview of the occurrence of enantiomeric mixtures of secondary metabolites in nature as well the best practices for their detection, enantioselective separation using liquid chromatography, and determination of absolute configuration by means of vibrational circular dichroism and density functional theory calculations.
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Affiliation(s)
- Andrea N L Batista
- Department of Chemistry, Federal University of São Carlos-UFSCar, Rod. Washington Luis s/n, km 235, São Carlos, SP 13565-905, Brazil.
| | - Fernando M Dos Santos
- Department of Chemistry, Federal University of São Carlos-UFSCar, Rod. Washington Luis s/n, km 235, São Carlos, SP 13565-905, Brazil.
| | - João M Batista
- Department of Chemistry, Federal University of São Carlos-UFSCar, Rod. Washington Luis s/n, km 235, São Carlos, SP 13565-905, Brazil.
- Institute of Science and Technology, Federal University of São Paulo-UNIFESP, R. Talim 330, São José dos Campos, SP 12231-280, Brazil.
| | - Quezia B Cass
- Department of Chemistry, Federal University of São Carlos-UFSCar, Rod. Washington Luis s/n, km 235, São Carlos, SP 13565-905, Brazil.
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Phyo YZ, Ribeiro J, Fernandes C, Kijjoa A, Pinto MMM. Marine Natural Peptides: Determination of Absolute Configuration Using Liquid Chromatography Methods and Evaluation of Bioactivities. Molecules 2018; 23:E306. [PMID: 29385101 PMCID: PMC6017543 DOI: 10.3390/molecules23020306] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 01/22/2018] [Accepted: 01/27/2018] [Indexed: 12/21/2022] Open
Abstract
Over the last decades, many naturally occurring peptides have attracted the attention of medicinal chemists due to their promising applicability as pharmaceuticals or as models for drugs used in therapeutics. Marine peptides are chiral molecules comprising different amino acid residues. Therefore, it is essential to establish the configuration of the stereogenic carbon of their amino acid constituents for a total characterization and further synthesis to obtain higher amount of the bioactive marine peptides or as a basis for structural modifications for more potent derivatives. Moreover, it is also a crucial issue taking into account the mechanisms of molecular recognition and the influence of molecular three-dimensionality in this process. In this review, a literature survey covering the report on the determination of absolute configuration of the amino acid residues of diverse marine peptides by chromatographic methodologies is presented. A brief summary of their biological activities was also included emphasizing to the most promising marine peptides. A case study describing an experience of our group was also included.
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Affiliation(s)
- Ye' Zaw Phyo
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, 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.
| | - João Ribeiro
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia da Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Carla Fernandes
- 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.
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia da Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Anake Kijjoa
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, 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.
| | - Madalena M M Pinto
- 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.
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia da Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
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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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Sun Y, Zhao C, Gao N, Ren J, Qu X. Stereoselective Nanozyme Based on Ceria Nanoparticles Engineered with Amino Acids. Chemistry 2017; 23:18146-18150. [PMID: 29131418 DOI: 10.1002/chem.201704579] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Indexed: 01/05/2023]
Abstract
Stereoselectivity towards substrates is one of the most important characteristics of enzymes. Amino acids, as cofactors of many enzymes, play important roles in stereochemistry. Herein, chiral nanozymes were constructed by grafting a series of d- or l-amino acids onto the surfaces of ceria (cerium oxide) nanoparticles. We selected the most commonly used drug for combating Parkinson's disease, that is, 3,4-dihydroxyphenylalanine (DOPA) enantiomers, as examples for chiral catalysis. Through detailed kinetic studies of cerium oxide nanoparticles (CeNPs) modified with different eight amino acids, we found that phenylalanine-modified CeNP was optimal for the DOPA oxidation reaction and showed excellent stereoselectivity towards its enantiomers. l-Phenylalanine-modified CeNPs showed higher catalytic ability for oxidation of d-DOPA, while d-phenylalanine-modified CeNPs were more effective towards l-DOPA. Taken together, the results indicated that stereoselective nanozyme can be constructed by grafting nanoparticles with chiral molecules. This work may inspire better design of chiral nanozymes.
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Affiliation(s)
- Yuhuan Sun
- Laboratory of Chemical Biology, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Chuanqi Zhao
- Laboratory of Chemical Biology, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Nan Gao
- Laboratory of Chemical Biology, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Jinsong Ren
- Laboratory of Chemical Biology, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Xiaogang Qu
- Laboratory of Chemical Biology, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
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Szymańska E, Nielsen B, Johansen TN, Cuñado Moral AM, Pickering DS, Szczepańska K, Mickowska A, Kieć-Kononowicz K. Pharmacological characterization and binding modes of novel racemic and optically active phenylalanine-based antagonists of AMPA receptors. Eur J Med Chem 2017; 138:874-883. [PMID: 28738307 DOI: 10.1016/j.ejmech.2017.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/29/2017] [Accepted: 07/05/2017] [Indexed: 01/01/2023]
Abstract
In order to map out molecular determinants for the competitive blockade of AMPA receptor subtypes, a series of racemic aryl-substituted phenylalanines was synthesized and pharmacologically characterized in vitro at native rat ionotropic glutamate receptors. Most of the compounds showed micromolar affinity and preference for AMPA receptors. Individual stereoisomers of selected compounds were further evaluated at recombinant homomeric rat GluA2 and GluA3 receptors. The most potent compound, (-)-2-amino-3-(6-chloro-2',5'-dihydroxy-5-nitro-[1,1'-biphenyl]-3-yl)propanoic acid, the expected R-isomer showing Ki of 1.71 μM at the GluA2 subtype, was found to competitively antagonize GluA2(Q)i receptors in TEVC electrophysiological experiments (Kb = 2.13 μM). Molecular docking experiments allowed us to compare two alternative antagonist binding modes for the synthesized phenylalanines at the GluA2 binding core, showing the direction for further structural modifications.
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Affiliation(s)
- Ewa Szymańska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland.
| | - Birgitte Nielsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen Ø, Denmark
| | - Tommy N Johansen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen Ø, Denmark
| | - Ana Maria Cuñado Moral
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen Ø, Denmark
| | - Darryl S Pickering
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen Ø, Denmark
| | - Katarzyna Szczepańska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Anna Mickowska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, PL 30-688 Kraków, Poland
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40
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Bouzon M, Perret A, Loreau O, Delmas V, Perchat N, Weissenbach J, Taran F, Marlière P. A Synthetic Alternative to Canonical One-Carbon Metabolism. ACS Synth Biol 2017; 6:1520-1533. [PMID: 28467058 DOI: 10.1021/acssynbio.7b00029] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
One-carbon metabolism is an ubiquitous metabolic pathway that encompasses the reactions transferring formyl-, hydroxymethyl- and methyl-groups bound to tetrahydrofolate for the synthesis of purine nucleotides, thymidylate, methionine and dehydropantoate, the precursor of coenzyme A. An alternative cyclic pathway was designed that substitutes 4-hydroxy-2-oxobutanoic acid (HOB), a compound absent from known metabolism, for the amino acids serine and glycine as one-carbon donors. It involves two novel reactions, the transamination of l-homoserine and the transfer of a one-carbon unit from HOB to tetrahydrofolate releasing pyruvate as coproduct. Since canonical reactions regenerate l-homoserine from pyruvate by carboxylation and subsequent reduction, every one-carbon moiety made available for anabolic reactions originates from CO2. The HOB-dependent pathway was established in an Escherichia coli auxotroph selected for prototrophy using long-term cultivation protocols. Genetic, metabolic and biochemical evidence support the emergence of a functional HOB-dependent one-carbon pathway achieved with the recruitment of the two enzymes l-homoserine transaminase and HOB-hydroxymethyltransferase and of HOB as an essential metabolic intermediate. Escherichia coli biochemical reprogramming was achieved by minimally altering canonical metabolism and leveraging on natural selection mechanisms, thereby launching the resulting strain on an evolutionary trajectory diverging from all known extant species.
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Affiliation(s)
- Madeleine Bouzon
- CEA, Genoscope, 2 rue Gaston
Crémieux, 91000 Evry, France
- CNRS UMR8030 Génomique Métabolique, 2 rue Gaston Crémieux, 91000 Evry, France
- Université Evry Val d’Essone, 91000 Evry, France
- Université Paris-Saclay, 91000 Evry, France
| | - Alain Perret
- CEA, Genoscope, 2 rue Gaston
Crémieux, 91000 Evry, France
- CNRS UMR8030 Génomique Métabolique, 2 rue Gaston Crémieux, 91000 Evry, France
- Université Evry Val d’Essone, 91000 Evry, France
- Université Paris-Saclay, 91000 Evry, France
| | | | - Valérie Delmas
- CEA, Genoscope, 2 rue Gaston
Crémieux, 91000 Evry, France
- CNRS UMR8030 Génomique Métabolique, 2 rue Gaston Crémieux, 91000 Evry, France
- Université Evry Val d’Essone, 91000 Evry, France
- Université Paris-Saclay, 91000 Evry, France
| | - Nadia Perchat
- CEA, Genoscope, 2 rue Gaston
Crémieux, 91000 Evry, France
- CNRS UMR8030 Génomique Métabolique, 2 rue Gaston Crémieux, 91000 Evry, France
- Université Evry Val d’Essone, 91000 Evry, France
- Université Paris-Saclay, 91000 Evry, France
| | - Jean Weissenbach
- CEA, Genoscope, 2 rue Gaston
Crémieux, 91000 Evry, France
- CNRS UMR8030 Génomique Métabolique, 2 rue Gaston Crémieux, 91000 Evry, France
- Université Evry Val d’Essone, 91000 Evry, France
- Université Paris-Saclay, 91000 Evry, France
| | | | - Philippe Marlière
- Institute of Systems and Synthetic Biology, Génopole, 5 rue Desbruères, 91030 Evry Cedex, France
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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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42
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Wang H, An X, Deng X, Ding G. Facile synthesis and application of teicoplanin-modified magnetic microparticles for enantioseparation. Electrophoresis 2017; 38:1374-1382. [DOI: 10.1002/elps.201600419] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 02/23/2017] [Accepted: 02/24/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Huijuan Wang
- School of Pharmaceutical Science and Technology; Tianjin University; Tianjin P.R. China
| | - Xuehan An
- School of Pharmaceutical Science and Technology; Tianjin University; Tianjin P.R. China
| | - Xiaojuan Deng
- Analysis Center; Tianjin University; Tianjin P.R. China
| | - Guosheng Ding
- School of Pharmaceutical Science and Technology; Tianjin University; Tianjin P.R. China
- Analysis Center; Tianjin University; Tianjin P.R. China
- State Key Laboratory of Medicinal Chemical Biology (Nankai University); Tianjin P.R. China
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43
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Separation of peptides on superficially porous particle based macrocyclic glycopeptide liquid chromatography stationary phases: consideration of fast separations. Anal Bioanal Chem 2017; 409:2437-2447. [PMID: 28215026 DOI: 10.1007/s00216-017-0190-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 12/20/2016] [Accepted: 01/04/2017] [Indexed: 10/20/2022]
Abstract
Macrocyclic glycopeptide based liquid chromatography stationary phases are known for their highly selective peptide separations. Fast and ultrafast (t R < 1 min) high-efficiency separations were achieved with superficially porous particle (SPP)-based stationary phases. Separations of pharmaceutically important classes of peptides such as enkephalins and bradykinins have been achieved in less than 5 min in isocratic elution modes. Selectivity for peptides structurally similar to one another was increased with use of teicoplanin-based stationary phases compared with commercial C18 stationary phases. Ultrafast isocratic separations of structurally related peptides were achieved with teicoplanin- and vancomycin-based short SPP columns. Acidic mobile phases produced better separations. Ammonium formate was the optimal mobile phase buffer additive. Use of an appropriate combination of a macrocyclic glycopeptide stationary phase and a mobile phase permits faster and more electrospray ionization mass spectrometry compatible isocratic separations than previous gradient approaches. The tryptic peptide separation characteristics of the teicoplanin stationary phase are demonstrated. Additionally, compared with commercial C18 stationary phases, teicoplanin showed tryptic peptide separations with different selectivities. Graphical Abstract Ultrafast separation of enkephalin peptide epimers.
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44
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Using chromatogram averaging to improve quantitation of minor impurities. J Chromatogr A 2016; 1465:205-10. [DOI: 10.1016/j.chroma.2016.08.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/15/2016] [Accepted: 08/20/2016] [Indexed: 11/20/2022]
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45
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May Zin WW, Buttachon S, Dethoup T, Fernandes C, Cravo S, Pinto MMM, Gales L, Pereira JA, Silva AMS, Sekeroglu N, Kijjoa A. New Cyclotetrapeptides and a New Diketopiperzine Derivative from the Marine Sponge-Associated Fungus Neosartorya glabra KUFA 0702. Mar Drugs 2016; 14:E136. [PMID: 27447650 PMCID: PMC4962026 DOI: 10.3390/md14070136] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 07/14/2016] [Accepted: 07/15/2016] [Indexed: 11/16/2022] Open
Abstract
Two new cyclotetrapeptides, sartoryglabramides A (5) and B (6), and a new analog of fellutanine A (8) were isolated, together with six known compounds including ergosta-4, 6, 8 (14), 22-tetraen-3-one, ergosterol 5, 8-endoperoxide, helvolic acid, aszonalenin (1), (3R)-3-(1H-indol-3-ylmethyl)-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione (2), takakiamide (3), (11aR)-2,3-dihydro-1H-pyrrolo[2,1-c][1,4]benzodiazepine-5,11(10H,11aH)-dione (4), and fellutanine A (7), from the ethyl acetate extract of the culture of the marine sponge-associated fungus Neosartorya glabra KUFA 0702. The structures of the new compounds were established based on extensive 1D and 2D spectral analysis. X-ray analysis was also used to confirm the relative configuration of the amino acid constituents of sartoryglabramide A (5), and the absolute stereochemistry of the amino acid constituents of sartoryglabramide A (5) and sartoryglabramides B (6) was determined by chiral HPLC analysis of their hydrolysates by co-injection with the d- and l- amino acids standards. Compounds 1-8 were tested for their antibacterial activity against Gram-positive (Escherichia coli ATCC 25922) and Gram-negative (Staphyllococus aureus ATCC 25923) bacteria, as well as for their antifungal activity against filamentous (Aspergillus fumigatus ATCC 46645), dermatophyte (Trichophyton rubrum ATCC FF5) and yeast (Candida albicans ATCC 10231). None of the tested compounds exhibited either antibacterial (MIC > 256 μg/mL) or antifungal activities (MIC > 512 μg/mL).
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Affiliation(s)
- War War May Zin
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Rua dos Bragas 289, 4050-313 Porto, Portugal.
| | - Suradet Buttachon
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Rua dos Bragas 289, 4050-313 Porto, Portugal.
| | - Tida Dethoup
- Department of Plant Pathology, Faculty of Agriculture, Kasetsart University, 10240 Bangkok, Thailand.
| | - Carla Fernandes
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Rua dos Bragas 289, 4050-313 Porto, Portugal.
- Laboratório de Química Orgânica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Sara Cravo
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Rua dos Bragas 289, 4050-313 Porto, Portugal.
- Laboratório de Química Orgânica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Madalena M M Pinto
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Rua dos Bragas 289, 4050-313 Porto, Portugal.
- Laboratório de Química Orgânica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Luís Gales
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - José A Pereira
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Artur M S Silva
- Departamento de Química & QOPNA, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - Nazim Sekeroglu
- Medicinal and Aromatic Plant Programme, Plant and Animal Sciences Department, Vocational School, Kilis Aralık University, 79000 Kilis, Turkey.
| | - Anake Kijjoa
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Rua dos Bragas 289, 4050-313 Porto, Portugal.
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46
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Ali I, Suhail M, Lone MN, Alothman ZA, Alwarthan A. Chiral resolution of multichiral center racemates by different modalities of chromatography. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2016.1152582] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Imran Ali
- Department of Chemistry, Jamia Millia Islamia Central University, New Delhi, India
| | - Mohd Suhail
- Department of Chemistry, Jamia Millia Islamia Central University, New Delhi, India
| | - Mohammad Nadeem Lone
- Department of Chemistry, Jamia Millia Islamia Central University, New Delhi, India
| | - Zeid A. Alothman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Abdulrahman Alwarthan
- Department of Chemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
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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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Separation of N-derivatized di- and tri-peptide stereoisomers by micro-liquid chromatography using a quinidine-based monolithic column – Analysis of l-carnosine in dietary supplements. J Chromatogr A 2016; 1428:176-84. [DOI: 10.1016/j.chroma.2015.09.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/02/2015] [Accepted: 09/05/2015] [Indexed: 02/04/2023]
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Riesová M, Geryk R, Kalíková K, Šlechtová T, Voborná M, Martínková M, Bydžovská A, Tesařová E. Direct CE and HPLC methods for enantioseparation of tryptophan and its unnatural derivatives. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2015.12.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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50
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Szymanska E, Frydenvang K, Pickering DS, Krintel C, Nielsen B, Kooshki A, Zachariassen LG, Olsen L, Kastrup JS, Johansen TN. Studies on Aryl-Substituted Phenylalanines: Synthesis, Activity, and Different Binding Modes at AMPA Receptors. J Med Chem 2015; 59:448-61. [PMID: 26653877 DOI: 10.1021/acs.jmedchem.5b01666] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of racemic aryl-substituted phenylalanines was synthesized and evaluated in vitro at recombinant rat GluA1-3, at GluK1-3, and at native AMPA receptors. The individual enantiomers of two target compounds, (RS)-2-amino-3-(3,4-dichloro-5-(5-hydroxypyridin-3-yl)phenyl)propanoic acid 37 and (RS)-2-amino-3-(3'-hydroxybiphenyl-3-yl)propanoic acid 38, were characterized. (S)-37 and (R)-38 were identified as the only biologically active isomers, both being antagonists at GluA2 receptors with Kb of 1.80 and 3.90 μM, respectively. To address this difference in enantiopharmacology, not previously seen for amino acid-based AMPA receptor antagonists, X-ray crystal structures of both eutomers in complex with the GluA2 ligand binding domain were solved. The cocrystal structures of (S)-37 and (R)-38 showed similar interactions of the amino acid parts but unexpected and different orientations and interactions of the biaromatic parts of the ligands inside the binding site, with (R)-38 having a binding mode not previously identified for amino acid-based antagonists.
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Affiliation(s)
- Ewa Szymanska
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Karla Frydenvang
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Darryl S Pickering
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Christian Krintel
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Birgitte Nielsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Ayesheh Kooshki
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Linda G Zachariassen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Lars Olsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Jette S Kastrup
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Tommy N Johansen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , 2100 Copenhagen, Denmark
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