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Franz L, Kazmaier U, Truman AW, Koehnke J. Bottromycins - biosynthesis, synthesis and activity. Nat Prod Rep 2021; 38:1659-1683. [PMID: 33621290 DOI: 10.1039/d0np00097c] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covering: 1950s up to the end of 2020Bottromycins are a class of macrocyclic peptide natural products that are produced by several Streptomyces species and possess promising antibacterial activity against clinically relevant multidrug-resistant pathogens. They belong to the ribosomally synthesised and post-translationally modified peptide (RiPP) superfamily of natural products. The structure contains a unique four-amino acid macrocycle formed via a rare amidine linkage, C-methylation and a d-amino acid. This review covers all aspects of bottromycin research with a focus on recent years (2009-2020), in which major advances in total synthesis and understanding of bottromycin biosynthesis were achieved.
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Affiliation(s)
- Laura Franz
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University Campus, 66123 Saarbrücken, Germany
| | - Uli Kazmaier
- Saarland University, Organic Chemistry, Campus Geb. C4.2, 66123 Saarbrücken, Germany
| | - Andrew W Truman
- Department of Molecular Microbiology, John Innes Centre, Norwich, UK
| | - Jesko Koehnke
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University Campus, 66123 Saarbrücken, Germany and School of Chemistry, University of Glasgow, Glasgow, UK.
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2
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3
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Molineau J, Hideux M, West C. Chromatographic analysis of biomolecules with pressurized carbon dioxide mobile phases - A review. J Pharm Biomed Anal 2020; 193:113736. [PMID: 33176241 DOI: 10.1016/j.jpba.2020.113736] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/24/2020] [Accepted: 10/24/2020] [Indexed: 12/14/2022]
Abstract
Biomolecules like proteins, peptides and nucleic acids widely emerge in pharmaceutical applications, either as synthetic active pharmaceutical ingredients, or from natural products as in traditional Chinese medicine. Liquid-phase chromatographic methods (LC) are widely employed for the analysis and/or purification of such molecules. On another hand, to answer the ever-increasing requests from scientists involved in biomolecules projects, other chromatographic methods emerge as useful complements to LC. In particular, there is a growing interest for chromatography with a mobile phase comprising pressurized carbon dioxide, which can be named either (i) supercritical (or subcritical) fluid chromatography (SFC) when CO2 is the major constituent of the mobile phase, or (ii) enhanced fluidity liquid chromatography (EFLC) when hydro-organic or purely organic solvents are the major constituents of the mobile phase. Despite the low polarity of CO2, supposedly inadequate to solubilize such biomolecules, SFC and EFLC were both employed in many occasions for this purpose. This paper specifically reviews the literature related to the SFC/EFLC analysis of free amino acids, peptides, proteins, nucleobases, nucleosides and nucleotides. The analytical conditions employed for specific molecular families are presented, with a focus on the nature of the stationary phase and the mobile phase composition. We also discuss the potential benefits of combining SFC/EFLC to LC in a single gradient elution, a method sometimes designated as unified chromatography (UC). Finally, detection issues are presented, and more particularly hyphenation to mass spectrometry.
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Affiliation(s)
- Jérémy Molineau
- University of Orleans, ICOA, CNRS UMR 7311, rue de Chartres, BP 6759, 45067 Orléans, France
| | - Maria Hideux
- Institut de Recherches Servier, 11 rue des Moulineaux, 92150 Suresnes, France
| | - Caroline West
- University of Orleans, ICOA, CNRS UMR 7311, rue de Chartres, BP 6759, 45067 Orléans, France.
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4
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Govender K, Naicker T, Baijnath S, Chuturgoon AA, Abdul NS, Docrat T, Kruger HG, Govender T. Sub/supercritical fluid chromatography employing water-rich modifier enables the purification of biosynthesized human insulin. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1155:122126. [DOI: 10.1016/j.jchromb.2020.122126] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/21/2020] [Accepted: 04/23/2020] [Indexed: 10/24/2022]
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Huang Y, Wang T, Fillet M, Crommen J, Jiang Z. Simultaneous determination of amino acids in different teas using supercritical fluid chromatography coupled with single quadrupole mass spectrometry. J Pharm Anal 2019; 9:254-258. [PMID: 31452963 PMCID: PMC6702419 DOI: 10.1016/j.jpha.2019.05.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/13/2019] [Accepted: 05/05/2019] [Indexed: 01/25/2023] Open
Abstract
Tea is a widely consumed beverage and has many important physiological properties and potential health benefits. In this study, a novel method based on supercritical fluid chromatography coupled with mass spectrometry (SFC-MS) was developed to simultaneously determine 11 amino acids in different types of tea (green teas, Oolong tea, black tea and Pu-erh tea). The separation conditions for the analysis of the selected amino acids including the column type, temperature and backpressure as well as the type of additive, were carefully optimized. The best separation of the 11 amino acids was obtained by adding water (5%, v/v) and trifluoroacetic acid (0.4%, v/v) to the organic modifier (methanol). Finally, the developed SFC-MS method was fully validated and successfully applied to the determination of these amino acids in six different tea samples. Good linearity (r ≥ 0.993), precision (RSDs ≤ 2.99%), accuracy (91.95%–107.09%) as well as good sample stability were observed. The limits of detection ranged from 1.42 to 14.69 ng/mL, while the limits of quantification were between 4.53 and 47.0 ng/mL. The results indicate that the contents of the 11 amino acids in the six different tea samples are greatly influenced by the degree of fermentation. The proposed SFC-MS method shows a great potential for further investigation of tea varieties. A SFC-MS approach was developed for the determination of amino acids. Water and trifluoroacetic acid are interesting additives for the SFC separation of amino acids. The SFC-MS method shows a good potential to differentiate the types of tea based on the content of amino acids.
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Affiliation(s)
- Yang Huang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou 510632, China
- Shenzhen Institute for Drug Control, Shenzhen, China
- Department of Pharmaceutics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- Laboratory for the Analysis of Medicine, Department of Pharmaceutical Sciences, CIRM, University of Liege, CHU B36, B-4000 Liege, Belgium
| | - Tiejie Wang
- Shenzhen Institute for Drug Control, Shenzhen, China
| | - Marianne Fillet
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou 510632, China
- Laboratory for the Analysis of Medicine, Department of Pharmaceutical Sciences, CIRM, University of Liege, CHU B36, B-4000 Liege, Belgium
| | - Jacques Crommen
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou 510632, China
- Laboratory for the Analysis of Medicine, Department of Pharmaceutical Sciences, CIRM, University of Liege, CHU B36, B-4000 Liege, Belgium
| | - Zhengjin Jiang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou 510632, China
- Corresponding author.
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Hu Z, Awakawa T, Ma Z, Abe I. Aminoacyl sulfonamide assembly in SB-203208 biosynthesis. Nat Commun 2019; 10:184. [PMID: 30643149 PMCID: PMC6331615 DOI: 10.1038/s41467-018-08093-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 12/12/2018] [Indexed: 12/14/2022] Open
Abstract
Sulfonamide is present in many important drugs, due to its unique chemical and biological properties. In contrast, naturally occurring sulfonamides are rare, and their biosynthetic knowledge are scarce. Here we identify the biosynthetic gene cluster of sulfonamide antibiotics, altemicidin, SB-203207, and SB-203208, from Streptomyces sp. NCIMB40513. The heterologous gene expression and biochemical analyses reveal unique aminoacyl transfer reactions, including the tRNA synthetase-like enzyme SbzA-catalyzed L-isoleucine transfer and the GNAT enzyme SbzC-catalyzed β-methylphenylalanine transfer. Furthermore, we elucidate the biogenesis of 2-sulfamoylacetic acid from L-cysteine, by the collaboration of the cupin dioxygenase SbzM and the aldehyde dehydrogenase SbzJ. Remarkably, SbzM catalyzes the two-step oxidation and decarboxylation of L-cysteine, and the subsequent intramolecular amino group rearrangement leads to N-S bond formation. This detailed analysis of the aminoacyl sulfonamide antibiotics biosynthetic machineries paves the way toward investigations of sulfonamide biosynthesis and its engineering.
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Affiliation(s)
- Zhijuan Hu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
- Ocean College, Zhejiang University, Zhoushan, 316000, China
| | - Takayoshi Awakawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, 113-8657, Japan.
| | - Zhongjun Ma
- Ocean College, Zhejiang University, Zhoushan, 316000, China
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, 113-8657, Japan.
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Investigation of robustness for supercritical fluid chromatography separation of peptides: Isocratic vs gradient mode. J Chromatogr A 2018; 1568:177-187. [PMID: 30072233 DOI: 10.1016/j.chroma.2018.07.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/01/2018] [Accepted: 07/05/2018] [Indexed: 11/22/2022]
Abstract
We investigated and compared the robustness of supercritical fluid chromatography (SFC) separations of the peptide gramicidin, using either isocratic or gradient elution. This was done using design of experiments in a design space of co-solvent fraction, water mass fraction in co-solvent, pressure, and temperature. The density of the eluent (CO2-MeOH-H2O) was experimentally determined using a Coriolis mass flow meter to calculate the volumetric flow rate required by the design. For both retention models, the most important factor was the total co-solvent fraction and water mass fraction in co-solvent. Comparing the elution modes, we found that gradient elution was more than three times more robust than isocratic elution. We also observed a relationship between the sensitivity to changes and the gradient steepness and used this to draw general conclusions beyond the studied experimental system. To test the robustness in a practical context, both the isocratic and gradient separations were transferred to another laboratory. The gradient elution was highly reproducible between laboratories, whereas the isocratic system was not. Using measurements of the actual operational conditions (not the set system conditions), the isocratic deviation was quantitatively explained using the retention model. The findings indicate the benefits of using gradient elution in SFC as well as the importance of measuring the actual operational conditions to be able to explain observed differences between laboratories when conducting method transfer.
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Balasubramanyam P, Ashraf-Khorassani M, Josan JS. Separation of stereoisomers of 7-oxa-bicyclo[2.2.1]heptene sulfonate (OBHS), a Selective Estrogen Receptor Modulator (SERM), via chiral stationary phases using SFC/UV and SFC/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1092:279-285. [PMID: 29933221 DOI: 10.1016/j.jchromb.2018.06.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/07/2018] [Accepted: 06/08/2018] [Indexed: 11/26/2022]
Abstract
The enantiomeric separation of a racemate of 7-oxa-bicyclo[2.2.1]heptene sulfonate (OBHS) derivatives, a Selective Estrogen Receptor Modulator (SERM), was obtained using supercritical fluid chromatography in tandem with UV and mass spectrometry (SFC/UV and SFC/MS, respectively). Supercritical CO2 modified with methanol or isopropyl alcohol was used with isopropylamine (IPAm), trimethylamine (TEA), or trifluoroacetic acid (TFA) as an additive to obtain the enantiomers separations. Both Chiralpak IC and IA were evaluated for the separation of enantiomers. Results showed enantiomers separation can be achieved in less than 5 min with a resolution greater than 1 and 0.9, respectively, for the different OBHS derivatives (compounds A and B) using supercritical CO2 modified with 40% isopropyl alcohol containing 0.25% IPAm and IC column applying isocratic conditions. Similar conditions were used with the semi-preparative Chiralpak IC column to isolate more than 50 mg of each enantiomer. SFC/MS and SFC/UV results showed pure enantiomers were isolated. Method development via SFC was much simpler than those reported in the literature using HPLC.
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Affiliation(s)
| | - Mehdi Ashraf-Khorassani
- Department of Chemistry, Chromatography and Mass Spectroscopy Center, Virginia Tech, Blacksburg, VA, USA.
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9
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Preparative supercritical fluid chromatography: A powerful tool for chiral separations. J Chromatogr A 2016; 1467:33-55. [DOI: 10.1016/j.chroma.2016.07.050] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 07/17/2016] [Accepted: 07/19/2016] [Indexed: 01/27/2023]
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10
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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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11
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Nie L, Dai Z, Ma S. Improved Chiral Separation of (R,S)-Goitrin by SFC: An Application in Traditional Chinese Medicine. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2016; 2016:5782942. [PMID: 27022502 PMCID: PMC4779522 DOI: 10.1155/2016/5782942] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 01/26/2016] [Indexed: 05/21/2023]
Abstract
Like chemical drugs, research and development of herbal medicine also have a need to resolve enantiomers. To help illustrating the antiviral bioactivity of Isatidis Radix, a widely used traditional Chinese medicine (TCM), supercritical fluid chromatography (SFC) was used for analytical and preparative separation of (R,S)-goitrin, which was reported as the active ingredient of the herbal. Improved resolution was achieved on Chiralpak IC column, using acetonitrile as the organic modifier, representing a tenfold increase in speed, compared to the previous normal phase HPLC (NPLC) method. The newly developed chromatographic method was validated in terms of linearity, precision, limit of detection (LOD), and limit of quantitation (LOQ). Scale-up purification of (R)-goitrin and (S)-goitrin was performed on a preparative column with >90% total recovery. The absolute stereochemical assignment of the purified isomers was determined through optical rotation study. This attempt explored SFC's application in chiral research of traditional Chinese medicine.
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Affiliation(s)
- Lixing Nie
- National Institutes for Food and Drug Control, China Food and Drug Administration, 2 Tiantan Xili, Beijing 100050, China
- *Lixing Nie:
| | - Zhong Dai
- National Institutes for Food and Drug Control, China Food and Drug Administration, 2 Tiantan Xili, Beijing 100050, China
| | - Shuangcheng Ma
- National Institutes for Food and Drug Control, China Food and Drug Administration, 2 Tiantan Xili, Beijing 100050, China
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12
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Remelli M, Pozzati G, Conato C. Direct chiral resolution of underivatized amino acids on a stationary phase dynamically modified with the ion-exchanger N
τ
-decyl-l
-spinacine. J Sep Sci 2015; 38:894-900. [DOI: 10.1002/jssc.201401381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 12/19/2014] [Accepted: 12/22/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Maurizio Remelli
- Dipartimento di Scienze Chimiche e Farmaceutiche; Università di Ferrara; Ferrara Italy
| | - Giovanni Pozzati
- Dipartimento di Scienze Chimiche e Farmaceutiche; Università di Ferrara; Ferrara Italy
| | - Chiara Conato
- Dipartimento di Scienze Chimiche e Farmaceutiche; Università di Ferrara; Ferrara Italy
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13
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Berger TA. Minimizing ultraviolet noise due to mis-matches between detector flow cell and post column mobile phase temperatures in supercritical fluid chromatography: Effect of flow cell design. J Chromatogr A 2014; 1364:249-60. [DOI: 10.1016/j.chroma.2014.08.067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 08/18/2014] [Accepted: 08/20/2014] [Indexed: 10/24/2022]
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14
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Płotka JM, Biziuk M, Morrison C, Namieśnik J. Pharmaceutical and forensic drug applications of chiral supercritical fluid chromatography. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2013.12.012] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Supercritical fluid chromatography as a tool for enantioselective separation; A review. Anal Chim Acta 2014; 821:1-33. [DOI: 10.1016/j.aca.2014.02.036] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 01/31/2014] [Accepted: 02/22/2014] [Indexed: 12/14/2022]
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16
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Dołowy M, Pyka A. Application of TLC, HPLC and GC methods to the study of amino acid and peptide enantiomers: a review. Biomed Chromatogr 2013; 28:84-101. [DOI: 10.1002/bmc.3016] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 07/09/2013] [Accepted: 07/09/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Małgorzata Dołowy
- Department of Analytical Chemistry, Faculty of Pharmacy; Medical University of Silesia in Katowice; Sosnowiec Poland
| | - Alina Pyka
- Department of Analytical Chemistry, Faculty of Pharmacy; Medical University of Silesia in Katowice; Sosnowiec Poland
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Ilisz I, Aranyi A, Péter A. Chiral derivatizations applied for the separation of unusual amino acid enantiomers by liquid chromatography and related techniques. J Chromatogr A 2013; 1296:119-39. [PMID: 23598164 DOI: 10.1016/j.chroma.2013.03.034] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 03/14/2013] [Accepted: 03/14/2013] [Indexed: 12/25/2022]
Abstract
Amino acids are essential for life, and have many functions in metabolism. One particularly important function is to serve as the building blocks of peptides and proteins, giving rise complex three dimensional structures through disulfide bonds or crosslinked amino acids. Peptides are frequently cyclic and contain proteinogenic as well as nonproteinogenic amino acids in many instances. Since most of the proteinogenic α-amino acids contain at least one stereogenic center (with the exception of glycine), the stereoisomers of all these amino acids and the peptides in which they are to be found may possess differences in biological activity in living systems. The impetus for advances in chiral separation has been highest in the past 25 years and this still continues to be an area of high focus. The important analytical task of the separation of isomers is achieved mainly by chromatographic and electrophoretic methods. This paper reviews indirect separation approaches, i.e. derivatization reactions aimed at creating the basis for the chromatographic resolution of biologically and pharmaceutically important enantiomers of unusual amino acids and related compounds, with emphasis on the literature published from 1980s. The main aspects of the chiral derivatization of amino acids are discussed, i.e. derivatization on the amino group, transforming the molecules into covalently bonded diastereomeric derivatives through the use of homochiral derivatizing agents. The diastereomers formed (amides, urethanes, urea and thiourea derivatives, etc.) can be separated on achiral stationary phases. The applications are considered, and in some cases different derivatizing agents for the resolution of complex mixtures of proteinogenic d,l-amino acids, non-proteinogenic amino acids and peptides/amino acids from peptide syntheses or microorganisms are compared.
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Affiliation(s)
- István Ilisz
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
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Samokhin AS, Revelsky IA, Chepelyansky DA, Parenago OO, Pokrovsky OI, Lepeshkin FD, Ustinovich KB, Revelsky AI. Supercritical fluid chromatography and its application to analysis and preparation of high-purity compounds. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2013. [DOI: 10.1134/s1990793111080100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Ilisz I, Aranyi A, Pataj Z, Péter A. Enantiomeric separation of nonproteinogenic amino acids by high-performance liquid chromatography. J Chromatogr A 2012; 1269:94-121. [DOI: 10.1016/j.chroma.2012.07.011] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 07/02/2012] [Accepted: 07/06/2012] [Indexed: 10/28/2022]
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20
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Ilisz I, Aranyi A, Pataj Z, Péter A. Recent advances in the direct and indirect liquid chromatographic enantioseparation of amino acids and related compounds: A review. J Pharm Biomed Anal 2012; 69:28-41. [DOI: 10.1016/j.jpba.2012.01.020] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 01/18/2012] [Accepted: 01/19/2012] [Indexed: 12/01/2022]
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21
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Miller L. Preparative enantioseparations using supercritical fluid chromatography. J Chromatogr A 2012; 1250:250-5. [DOI: 10.1016/j.chroma.2012.05.025] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 05/06/2012] [Accepted: 05/07/2012] [Indexed: 11/26/2022]
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22
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Lee YJ, Choi S, Lee J, Nguyen NT, Lee K, Kang JS, Mar W, Kim KH. Chiral discrimination of sibutramine enantiomers by capillary electrophoresis and proton nuclear magnetic resonance spectroscopy. Arch Pharm Res 2012; 35:671-81. [DOI: 10.1007/s12272-012-0411-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 08/17/2011] [Accepted: 08/17/2011] [Indexed: 10/28/2022]
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23
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Berger TA, Berger BK. Minimizing UV noise in supercritical fluid chromatography. I. Improving back pressure regulator pressure noise. J Chromatogr A 2011; 1218:2320-6. [DOI: 10.1016/j.chroma.2011.02.030] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Revised: 02/11/2011] [Accepted: 02/14/2011] [Indexed: 11/26/2022]
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24
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Hongjun E, Su P, Farooq MU, Yang Y. Microwave-Assisted Preparation of a β-Cyclodextrin-Based Stationary Phase for Open Tubular Capillary Electrochromatography. ANAL LETT 2010. [DOI: 10.1080/00032711003725532] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Yan TQ, Orihuela C, Preston JP, Xia F. Supercritical fluid chromatography and steady-state recycling: Phase appropriate technologies for the resolutions of pharmaceutical intermediates in the early drug development stage. Chirality 2010; 22:922-8. [DOI: 10.1002/chir.20861] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Huang YT, Lyu SY, Chuang PH, Hsu NS, Li YS, Chan HC, Huang CJ, Liu YC, Wu CJ, Yang WB, Li TL. In vitro Characterization of Enzymes Involved in the Synthesis of Nonproteinogenic Residue (2S,3S)-β-Methylphenylalanine in Glycopeptide Antibiotic Mannopeptimycin. Chembiochem 2009; 10:2480-7. [DOI: 10.1002/cbic.200900351] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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27
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28
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Qian-Cutrone J, Dasgupta B, Kozlowski ES, Dalterio R, Wang-Iverson D, Vrudhula VM. Separation of maxi-K channel opening 3-substitued-4-arylquinolinone atropisomers by enantioselective supercritical fluid chromatography. J Pharm Biomed Anal 2008; 48:1120-6. [DOI: 10.1016/j.jpba.2008.08.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2008] [Revised: 07/24/2008] [Accepted: 08/23/2008] [Indexed: 11/25/2022]
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Toribio L, del Nozal MJ, Bernal YL, Alonso C, Jiménez JJ. Semipreparative chiral supercritical fluid chromatography in the fractionation of lansoprazole and two related antiulcer drugs enantiomers. J Sep Sci 2008; 31:1307-13. [DOI: 10.1002/jssc.200700457] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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30
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Mangelings D, Vander Heyden Y. Chiral separations in sub- and supercritical fluid chromatography. J Sep Sci 2008; 31:1252-73. [DOI: 10.1002/jssc.200700564] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Affiliation(s)
- Larry T. Taylor
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061-0212
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32
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Stringham RW, Krueger BR, Marshall J. Use of elevated flow rates in preparative subcritical fluid chromatography. J Chromatogr A 2007; 1175:112-6. [DOI: 10.1016/j.chroma.2007.09.091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2007] [Revised: 09/22/2007] [Accepted: 09/26/2007] [Indexed: 11/28/2022]
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33
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Affiliation(s)
- R K Gilpin
- Brehm Research Laboratory, University Park, Wright State University, Fairborn, Ohio 45324-2031, USA
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34
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McConnell O, Bach A, Balibar C, Byrne N, Cai Y, Carter G, Chlenov M, Di L, Fan K, Goljer I, He Y, Herold D, Kagan M, Kerns E, Koehn F, Kraml C, Marathias V, Marquez B, McDonald L, Nogle L, Petucci C, Schlingmann G, Tawa G, Tischler M, Williamson RT, Sutherland A, Watts W, Young M, Zhang MY, Zhang Y, Zhou D, Ho D. Enantiomeric separation and determination of absolute stereochemistry of asymmetric molecules in drug discovery—Building chiral technology toolboxes. Chirality 2007; 19:658-82. [PMID: 17390370 DOI: 10.1002/chir.20399] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The application of Chiral Technology, or the (extensive) use of techniques or tools for the determination of absolute stereochemistry and the enantiomeric or chiral separation of racemic small molecule potential lead compounds, has been critical to successfully discovering and developing chiral drugs in the pharmaceutical industry. This has been due to the rapid increase over the past 10-15 years in potential drug candidates containing one or more asymmetric centers. Based on the experiences of one pharmaceutical company, a summary of the establishment of a Chiral Technology toolbox, including the implementation of known tools as well as the design, development, and implementation of new Chiral Technology tools, is provided.
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Affiliation(s)
- Oliver McConnell
- Wyeth Research, Chemical and Screening Sciences, Collegeville, PA 19426, USA.
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35
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Tóth G, Ioja E, Tömböly C, Ballet S, Tourwé D, Péter A, Martinek T, Chung NN, Schiller PW, Benyhe S, Borsodi A. β-Methyl Substitution of Cyclohexylalanine in Dmt-Tic-Cha-Phe Peptides Results in Highly Potent δ Opioid Antagonists. J Med Chem 2006; 50:328-33. [PMID: 17228874 DOI: 10.1021/jm060721u] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The opioid peptide TIPP (H-Tyr-Tic-Phe-Phe-OH, Tic:1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid) was substituted with Dmt (2',6'-dimethyltyrosine) and a new unnatural amino acid, beta-MeCha (beta-methyl-cyclohexylalanine). This double substitution led to a new series of opioid peptides displaying subnanomolar delta antagonist activity and mu agonist or antagonist properties depending on the configuration of the beta-MeCha residue. The most promising analog, H-Dmt-Tic-(2S,3S)-beta-MeCha-Phe-OH was a very selective delta antagonist both in the mouse vas deferens (MVD) assay (Ke = 0.241 +/- 0.05 nM) and in radioligand binding assay (K i delta = 0.48 +/- 0.05 nM, K i mu/K i delta = 2800). The epimeric peptide H-Dmt-Tic-(2S,3R)-beta-MeCha-Phe-OH and the corresponding peptide amide turned out to be mixed partial mu agonist/delta antagonists in the guinea pig ileum and MVD assays. Our results constitute further examples of the influence of Dmt and beta-methyl substitution as well as C-terminal amidation on the potency, selectivity, and signal transduction properties of TIPP related peptides. Some of these compounds represent valuable pharmacological tools for opioid research.
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Affiliation(s)
- Géza Tóth
- Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Post Office Box 521, H-6701 Szeged, Hungary.
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Toribio L, Alonso C, del Nozal M, Bernal J, Martín M. Semipreparative enantiomeric separation of omeprazole by supercritical fluid chromatography. J Chromatogr A 2006; 1137:30-5. [DOI: 10.1016/j.chroma.2006.09.092] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2006] [Revised: 09/26/2006] [Accepted: 09/29/2006] [Indexed: 11/25/2022]
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