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Blakley B, Zlibut E, Gupta RM, May JC, McLean JA. Direct Enantiomer Differentiation of Drugs and Drug-Like Compounds via Noncovalent Copper-Amino Acid Complexation and Ion Mobility-Mass Spectrometry. Anal Chem 2024; 96:12892-12900. [PMID: 39051631 PMCID: PMC11307251 DOI: 10.1021/acs.analchem.4c02710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 07/12/2024] [Accepted: 07/15/2024] [Indexed: 07/27/2024]
Abstract
Drug enantiomers can possess vastly different pharmacological properties, yet they are identical in their chemical composition and structural connectivity. Thus, resolving enantiomers poses a great challenge in the field of separation science. Enantiomer separations necessitate interaction of the analyte with a chiral environment─in mass spectrometry-based analysis, a common approach is through a three-point interaction with a chiral selector commonly introduced during sample preparation. In select cases, the structural difference imparted through noncovalent complexation results in enantiomer-specific structural differences, facilitating measurement using a structurally selective analytical technique such as ion mobility-mass spectrometry (IM-MS). In this work, we investigate the direct IM-MS differentiation of chiral drug compounds using mononuclear copper complexes incorporating an amino acid chiral selector. A panel of 20 chiral drugs and drug-like compounds were investigated for separation, and four l-amino acids (l-histidine, l-tryptophan, l-proline, and l-tyrosine) were evaluated as chiral selectors (CS) to provide the chiral environment necessary for differentiation. Enantiomer differentiation was achieved for four chiral molecule pairs (R/S-thalidomide, R/S-baclofen, R/S-metoprolol, and d/l-panthenol) with two-peak resolution (Rp-p) values ranging from 0.7 (>10% valley) to 1.5 (baseline separation). Calibration curves relating IM peak areas to enantiomeric concentrations enabled enantiomeric excess quantitation of racemic thalidomide and metoprolol with residuals of 5.7 and 2.5%, respectively. Theoretical models suggest that CuII and l-histidine complexation around the analyte chiral center is important for gas-phase stereoselectivity. This study demonstrates the potential of combining enantioselective noncovalent copper complexation with structurally selective IM-MS for differentiating chiral drugs and drug-like compounds.
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Affiliation(s)
- Benjamin
K. Blakley
- Department of Chemistry, Center for
Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt-Ingram
Cancer Center, and Vanderbilt Institute for Integrated Biosystems
Research and Education, Vanderbilt University, Nashville, Tennessee 37235-1822, United
States
| | | | - Rashi M. Gupta
- Department of Chemistry, Center for
Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt-Ingram
Cancer Center, and Vanderbilt Institute for Integrated Biosystems
Research and Education, Vanderbilt University, Nashville, Tennessee 37235-1822, United
States
| | - Jody C. May
- Department of Chemistry, Center for
Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt-Ingram
Cancer Center, and Vanderbilt Institute for Integrated Biosystems
Research and Education, Vanderbilt University, Nashville, Tennessee 37235-1822, United
States
| | - John A. McLean
- Department of Chemistry, Center for
Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt-Ingram
Cancer Center, and Vanderbilt Institute for Integrated Biosystems
Research and Education, Vanderbilt University, Nashville, Tennessee 37235-1822, United
States
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2
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Zhang C, Liu Y, He L, Li W. Tandem Mass Spectrometry Approaches for Differentiation and Quantification Pidotimod and Its Three Isomers in the Gas Phase. Chirality 2024; 36:e23699. [PMID: 39034278 DOI: 10.1002/chir.23699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 06/12/2024] [Accepted: 06/18/2024] [Indexed: 07/23/2024]
Abstract
Pidotimod is a chiral drug that possesses two chiral centers, resulting in three isomeric impurities (analytes, A). This study employs electrospray ionization ion trap mass spectrometry (ESI-MS) through collision-induced dissociation (CID) to investigate the chiral recognition of pidotimod and its three isomers to eliminate chromatographic separation. Three approaches were explored: (1) Protonated molecules in CID exhibited discriminative potential for diastereomers, with the ability to distinguish between S,S and R,R configurations, albeit with an Rchiral value of ~1.8. However, differentiation between R,S and S,R configurations was not achievable. (2) Alkali adductions (lithium and sodium) only discerned diastereomers. The Rchiral values of the diastereomers obtained from alkali adduct ions were significantly lower than those obtained from protonated ions. (3) Therefore, a third approach was used to address the challenge of distinguishing between R,S and S,R configurations, including the introduction of chiral references (ref) and transition metals (MII) to form metal-bound complexes [MII(A)(ref)-H]+. Additionally, we synthesized a novel ligand, 4-(N-tert-butoxycarbonyl [Boc]-L-prolinamido)phenol (denoted as ligand A), by modifying N-t-Boc-L-Pro with 2-aminophenol, which, in combination with CuII and NiII, enabled simultaneous differentiation of all four isomers. CuII complexes exhibited significant chiral selectivity between R,S and S,R configurations. Density functional theory calculations were performed to further elucidate the stereodynamic behavior and stoichiometry of these ions in the gas phase. These calculations revealed the interaction energy and coordination sites of the precursor ions in the gas phase, correlating well with MS/MS experiment results. Additionally, the logarithm of the CuII complexes' characteristic fragment ion abundance ratio demonstrated a strong linear relationship with enantiomeric excess (ee). This study presents a novel strategy for chiral drug quality control that eliminates chromatographic separation.
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Affiliation(s)
- Caiyu Zhang
- Chemical Drugs Division, National Institutes for Food and Drug Control, Beijing, China
| | - Yang Liu
- Chemical Drugs Division, National Institutes for Food and Drug Control, Beijing, China
| | - Lan He
- Chemical Drugs Division, National Institutes for Food and Drug Control, Beijing, China
| | - Wei Li
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, China
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Chalet C, Lesage D, Darii E, Perret A, Alves S, Gimbert Y, Tabet JC. Enantioselective Reduction of Noncovalent Complexes of Amino Acids with Cu II via Resonant Collision-Induced Dissociation: Collision Energy, Activation Duration Effects, and RRKM Modeling. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2024; 35:456-465. [PMID: 38372248 DOI: 10.1021/jasms.3c00355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Formation of noncovalent complexes is one of the approaches to perform chiral analysis with mass spectrometry. Enantiomeric distinction of amino acids (AAs) based on the relative rate constants of competitive fragmentations of quaternary copper complexes is an efficient method for chiral differentiation. Here, we studied the complex [CuII,(Phe,PhG,Pro-H)]+ (m/z 493) under resonant collision-induced dissociation conditions while varying the activation time. The precursor ion can yield two main fragments through the loss of the non-natural AA phenylglycine (PhG): the expected product ion [CuII,(Phe,Pro-H)]+ (m/z 342) and the reduced product ion [CuI,(Phe,Pro)]+ (m/z 343). Enantioselective reduction describes the difference in relative abundance of these ions, which depends on the chirality of the precursor ion: the formation of the reduced ion m/z 343 is favored in homochiral complexes (DDD) compared to heterochiral complexes (such as LDD). Energy-resolved mass spectrometry data show that reduction, which arises from rearrangement, is favored at a low collision energy (CE) and long activation time (ActT), whereas direct cleavage preferentially occurs at a high CE and short ActT. These results were confirmed with kinetic modeling based on RRKM theory. For this modeling, it was necessary to set a pre-exponential factor as a reference, so that the E0 values obtained are relative values. Interestingly, these simulations showed that the critical energy E0 required to form the reduced ion is comparable in both homochiral and heterochiral complexes. However, the formation of product ion m/z 342 through direct cleavage is associated with a lower E0 in heterochiral complexes. Consequently, enantioselectivity would not be caused by enhanced reduction in homochiral complexes but rather by direct cleavage being favored in heterochiral complexes.
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Affiliation(s)
- Clément Chalet
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, 91057 Evry, France
- Sorbonne Université, Institut Parisien de Chimie Moléculaire (IPCM), 75005 Paris, France
| | - Denis Lesage
- Sorbonne Université, Institut Parisien de Chimie Moléculaire (IPCM), 75005 Paris, France
| | - Ekaterina Darii
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, 91057 Evry, France
| | - Alain Perret
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, 91057 Evry, France
| | - Sandra Alves
- Sorbonne Université, Institut Parisien de Chimie Moléculaire (IPCM), 75005 Paris, France
| | - Yves Gimbert
- Sorbonne Université, Institut Parisien de Chimie Moléculaire (IPCM), 75005 Paris, France
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble Alpes, 38058 Grenoble, France
| | - Jean-Claude Tabet
- Sorbonne Université, Institut Parisien de Chimie Moléculaire (IPCM), 75005 Paris, France
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA, INRAE, F-91191 Gif sur Yvette, France
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4
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Yang X, Li W, Liu J, He L, Liu Y, Zhang C. Exploration of chiral drugs as references for chiral discrimination of valsartan and voriconazole by tandem mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2023; 58:e4968. [PMID: 37609721 DOI: 10.1002/jms.4968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 07/13/2023] [Accepted: 07/21/2023] [Indexed: 08/24/2023]
Abstract
The use of mass spectrometry for chiral recognition and quantification has attracted great interest owing to its speed, sensitivity, specificity, and tolerance. However, searching for chiral selectors in chiral analyses using mass spectrometry is still problematic. In this study, chiral drugs could be applied as references for the chiral recognition and enantiomeric quantification of valsartan and voriconazole. Two novel pairs of metal-bound diastereomeric complex ions were detected by mass spectrometry, namely, nickel (II)-bound dimeric ions [NiII (2R,5S-emtricitabine) (S-valsartan)-H]+ and [NiII (2R,5S-emtricitabine) (R-valsartan)-H]+ and copper (II)-bound dimeric ions [CuII (S,S,S-enalaprilat) (2S,3R-voriconazole)-H]+ and [CuII (S,S,S-enalaprilat) (2R,3S-voriconazole)-H]+ . The resulting diastereomers were successfully identified based on the relative intensities of their characteristic fragments using tandem mass spectrometry. The logarithm of the characteristic fragment ion abundance ratio exhibited a good linear relationship with the enantiomeric excess. Density functional theory calculations were also performed to elucidate the mechanism of the structural differences observed in the MS results. This established approach proves that chiral drugs can serve as ligands for the rapid recognition and quantitative analysis of other chiral drugs without a chiral chromatographic column or complex sample pretreatment.
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Affiliation(s)
- Xue Yang
- National Institutes for Food and Drug Control, Beijing, China
- School of Science, China Pharmaceutical University, Nanjing, China
| | - Wei Li
- Beijing Institute of Petrochemical Technology, Beijing, China
| | - Jie Liu
- School of Science, China Pharmaceutical University, Nanjing, China
| | - Lan He
- National Institutes for Food and Drug Control, Beijing, China
| | - Yang Liu
- National Institutes for Food and Drug Control, Beijing, China
| | - Caiyu Zhang
- National Institutes for Food and Drug Control, Beijing, China
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5
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Crotti S, Menicatti M, Pallecchi M, Bartolucci G. Tandem mass spectrometry approaches for recognition of isomeric compounds mixtures. MASS SPECTROMETRY REVIEWS 2023; 42:1244-1260. [PMID: 34841547 DOI: 10.1002/mas.21757] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 10/27/2021] [Accepted: 10/27/2021] [Indexed: 06/07/2023]
Abstract
The present review aims to collect the published literature pertaining the recognition of isobaric compounds (isomers or stereoisomers) using the features of tandem mass spectrometry (MS) experiments without any chromatographic separation or chemical modification (derivatization or isotopic enrichment) of the analytes. MS/MS methods possess high selectivity, wide dynamic range and high throughput capabilities. Generally, tandem MS has limited capability for distinguishing isomers that fragment similarly. However, some MS/MS methods have been developed and positively applied to isomers discrimination. Among the literature on this topic, the applications that fit on the review subject can be summarized as follow: (1) chiral discrimination by the kinetic method, (2) the use energy-resolved tandem mass spectra and the survival yield (SY) representation, (3) the kinetics evaluation of the ion-molecule interaction and (4) the postprocessing mathematical algorithm to resolve the isomers in MS/MS signal.
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Affiliation(s)
- Sara Crotti
- Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
| | - Marta Menicatti
- Dipartimento Neurofarba, Università di Firenze, Florence, Italy
| | - Marco Pallecchi
- Dipartimento Neurofarba, Università di Firenze, Florence, Italy
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Gumus E, Bingol H, Zor E. Nanomaterials-enriched sensors for detection of chiral pharmaceuticals. J Pharm Biomed Anal 2022; 221:115031. [PMID: 36115205 DOI: 10.1016/j.jpba.2022.115031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 09/02/2022] [Accepted: 09/04/2022] [Indexed: 10/31/2022]
Abstract
Advancements in nanoscience and nanotechnology have opened new pathways to fabricate novel nanostructures with interesting properties that would be used for different applications. In this respect, nanostructures comprising chirality are one of the most rapidly developing research fields encompassing chemistry, physics and biology. Chirality, also known as mirror asymmetry, describes the geometrical property of an object that is not superimposable on its mirror image. This characteristic plays a crucial role because these identical forms of chiral species in pharmaceuticals or food additives may exhibit different effects on living organisms. Therefore, chiral analysis is an important field of modern chemical analysis in health-related industries that are reliant on the production of enantiomeric compounds involving pharmaceuticals. This review covers the recent advances dealing with the synthesis, design and advantageous analytical performance of nanomaterials-enriched sensors used for chiral pharmaceuticals. We conclude this review with the challenges existing in this research field and our perspectives on some potential strategies with cutting-edge approaches for the rational design of sensors for chiral pharmaceuticals. We expect this comprehensive review will inspire future studies in nanomaterials-enriched chiral sensors.
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Affiliation(s)
- Eda Gumus
- Biomaterials and Biotechnology Laboratory, Science and Technology Research and Application Center (BITAM), Necmettin Erbakan University, 42140 Konya, Turkey
| | - Haluk Bingol
- Biomaterials and Biotechnology Laboratory, Science and Technology Research and Application Center (BITAM), Necmettin Erbakan University, 42140 Konya, Turkey; Department of Chemistry Education, A.K. Education Faculty, Necmettin Erbakan University, 42090 Konya, Turkey
| | - Erhan Zor
- Biomaterials and Biotechnology Laboratory, Science and Technology Research and Application Center (BITAM), Necmettin Erbakan University, 42140 Konya, Turkey; Department of Science Education, A.K. Education Faculty, Necmettin Erbakan University, 42090 Konya, Turkey.
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7
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Zlibut E, May JC, McLean JA. Enantiomer Differentiation of Amino Acid Stereoisomers by Structural Mass Spectrometry Using Noncovalent Trinuclear Copper Complexes. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:996-1002. [PMID: 35580025 DOI: 10.1021/jasms.2c00059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Previous work has demonstrated that copper complexation strategies can be used with tandem MS (MS/MS) and, more recently, ion mobility-mass spectrometry (IM-MS) to differentiate chiral isomers based upon enantiomeric-specific binding. In this study, we investigate the separation of chiral amino acids (AAs) forming trinuclear complexes that can be directly resolved by IM-MS analyses. Twenty standard AAs of both d- and l-chirality were investigated. Specific AAs including d/l-histidine, d/l-proline, d/l-glutamine, d/l-tyrosine, and d/l-tryptophan were evaluated as "chiral selectors" that, when combined with copper, were found to promote selective complexation with specific AA enantiomers. Significant enantiomer differentiation was observed in the IM spectra for hydrophobic AAs acids with peak-to-peak resolutions ranging from 0.63 to 1.15. Among the chiral selectors investigated, histidine provided the best enantioselectivity, followed by tryptophan, suggesting the aromatic structure plays an important role in forming chiral-specific ion complexes. Unlike MS/MS methods where chiral selectors with l-stereochemistry enhance the differentiation, the chirality of the selector was found to have no significant effect on observed IM separation with both d- and l-selectors providing similar resolutions but with inverted IM arrival time ordering. To investigate the structural differences between resolvable chiral complexes, a combination of MS/MS, collision cross-section (CCS) measurements, and molecular mechanics techniques was used. Candidate trinuclear structures of the stoichiometry [(Cu2+)3(d/lIle)3(lHis)2 - 5H]+ were constructed with guidance from empirical MS/MS results. Of the 48 theoretical structures generated, one enantiomeric cluster pair yielded close correlation (<1%) with experimental CCS measurements, suggesting the most enantioselective ion complexes observed in this work are bridged by three coppers.
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Affiliation(s)
- Emanuel Zlibut
- Center for Innovative Technology, Department of Chemistry, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37235 United States
| | - Jody C May
- Center for Innovative Technology, Department of Chemistry, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37235 United States
| | - John A McLean
- Center for Innovative Technology, Department of Chemistry, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37235 United States
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Zhang C, Liu Y, Liu R, Li W, Liu C, He L. Chiral probe for mass spectrometric identification and quantitation of levodropropizine and its enantiomer, dextrodropropizine. Chirality 2022; 34:955-967. [PMID: 35506518 DOI: 10.1002/chir.23443] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 02/27/2022] [Accepted: 03/14/2022] [Indexed: 11/06/2022]
Abstract
Acyl chlorides react rapidly with hydroxyl and amino groups in the absence of catalysts and therefore hold great promise for chiral mass spectrometry. Herein, a tandem mass spectrometry method based on derivatization with (-)-camphanic acid chloride as a simple chiral probe was developed for the highly sensitive detection and quantitation of levodropropizine and its enantiomer, namely, dextrodropropizine. The diastereomeric derivatization products were quantified based on the relative abundances of their fragment ions produced upon collision-induced dissociation in positive-ion mode. The reactive site was elucidated using nuclear magnetic resonance spectroscopy and two-dimensional total correlation spectroscopy, and the reaction mechanism was proved by stoichiometry studies. The degree of isomer recognition was investigated at different collision energies and determined as Rchiral ≈ 1.5. Thus, this study gives the way to the mass spectrometric identification and quantitation of levodropropizine and its enantiomer, and the developed method represents a new and practical technique for rapid and sensitive determination and quality control of enantiomers of chiral drugs.
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Affiliation(s)
- Caiyu Zhang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, China.,National Institutes for Food and Drug Control, Beijing, China
| | - Yang Liu
- National Institutes for Food and Drug Control, Beijing, China
| | - Rui Liu
- Beijing Normal University, Beijing, China
| | - Wei Li
- Beijing Institute of Petrochemical Technology, Beijing, China
| | - Changxiao Liu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, China
| | - Lan He
- National Institutes for Food and Drug Control, Beijing, China
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9
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Rapid differentiation of simple saccharides based on cluster ions by paper spray tandem mass spectrometry. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Gao Z, Li L, Chen W, Ma Z, Li Y, Gao Y, Ding CF, Zhao X, Pan Y. Distinguishment of Glycan Isomers by Trapped Ion Mobility Spectrometry. Anal Chem 2021; 93:9209-9217. [PMID: 34165974 DOI: 10.1021/acs.analchem.1c01461] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The in-depth study of glycan has drawn large research interests since it is one of the main biopolymers on the earth with a variety of biological functions. However, the distinguishment of glycans is still difficult due to the similarity of the monosaccharide building block, the anomer, and the linkage of glycosidic bonds. In this study, four novel and representative copper-bound diastereoisomeric complex ions were simultaneously detected in a single measurement by trapped ion mobility mass spectrometry, including mononuclear copper-bound dimeric ions [(Cu2+)(A)(l-Ser)-H]+ and [(Cu2+)(A)(l-His)-H]+, the mononuclear copper-bound trimeric ion [(Cu2+)(A)(l-Ser)(l-His)-H]+, and the binuclear copper-bound tetrameric ion [(Cu2+)2(A)(l-Ser)2(l-His)-3H]+ (where A denotes an oligosaccharide, and l-Ser and l-His denote l-serine and l-histidine, respectively). By combining the collision cross sections of complex ions, 23 oligosaccharide isomers were successfully distinguished including two pairs of sialylated glycan linkage isomers. In addition, due to the unique dissociation pathways of the trimeric ion, both the relative and absolute quantification of the individual isomer in the mixture could be determined using a mass spectrometry-based kinetic method. Finally, the method established above was successfully applied to the identification and quantification of glycan isomers in dairy beverages and juice. The method in the present study was sensitive to the fine difference of glycan isomers and might have wide applicability in glycoscience.
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Affiliation(s)
- Zhan Gao
- Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, P. R. China
| | - Lei Li
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, P. R. China
| | - Weiwei Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, P. R. China
| | - Zihan Ma
- Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, P. R. China
| | - Yuan Li
- Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, P. R. China
| | - Yuanji Gao
- Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, P. R. China
| | - Chuan-Fan Ding
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, P. R. China
| | - Xiaoyong Zhao
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou 310058, P. R. China
| | - Yuanjiang Pan
- Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, P. R. China
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11
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Gu L, Yang S, Wu F, Xu F, Yu S, Zhou M, Chu Y, Ding CF. Enantio-separation of pregabalin by ternary complexation using trapped ion mobility spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9052. [PMID: 33470461 DOI: 10.1002/rcm.9052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/19/2021] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
UNLABELLED Rationale The rapid identification of small-molecule chiral drugs is challenging due to subtle structural differences. Different enantiomers of chiral drugs may produce inverse biological effects through their different pharmacokinetics. Therefore, it is highly desirable to distinguish the chirality of drug molecules. METHODS The chirality of pregabalin was distinguished by studying the ion mobility spectra of the ternary non-covalent complexes formed with cyclodextrins (CDs), pregabalin, and alkali-earth cations using trapped ion mobility spectrometry (TIMS). The ternary non-covalent complex ions were determined by electrospray ionization of mixed solutions. The analyzed sample was simply mixed, without derivatization or sample pretreatment. The relative contents of pregabalin enantiomers were derived using a calibration curve method. RESULTS The ion mobility spectra of several ternary non-covalent complexes formed with α-, β-, and γ-CD, pregabalin, and alkali-earth cations were obtained. We compared their ability to distinguish the chirality of pregabalin. The best peak-to-peak resolution (Rp-p ) was estimated to be 2.20 for [2β-CD + pregabalin + Sr]2+ , which can be ascribed as baseline separation. The derived relative contents for S-pregabalin were in agreement with the actual contents. CONCLUSIONS A novel and convenient method for discriminating the chirality of the pregabalin molecule by TIMS was developed and optimized. The chirality of pregabalin was recognized by studying the ion mobility spectra of the ternary non-covalent complexes, such as [2β-CD + pregabalin + Sr]2+ . This TIMS method could also be used to quantify the relative contents of pregabalin enantiomers.
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Affiliation(s)
- Liancheng Gu
- Department of Chemistry, Laser Chemistry Institute, Fudan University, Shanghai, 200438, China
| | - Shutong Yang
- Department of Chemistry, Laser Chemistry Institute, Fudan University, Shanghai, 200438, China
| | - Fangling Wu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Provincial, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Fuxing Xu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Provincial, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Shaoning Yu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Provincial, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Mingfei Zhou
- Department of Chemistry, Laser Chemistry Institute, Fudan University, Shanghai, 200438, China
| | - Yanqiu Chu
- Department of Chemistry, Laser Chemistry Institute, Fudan University, Shanghai, 200438, China
| | - Chuan-Fan Ding
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Provincial, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
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12
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Hirata K, Mori Y, Ishiuchi SI, Fujii M, Zehnacker A. Chiral discrimination between tyrosine and β-cyclodextrin revealed by cryogenic ion trap infrared spectroscopy. Phys Chem Chem Phys 2020; 22:24887-24894. [PMID: 32914820 DOI: 10.1039/d0cp02968h] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Complexes of permethylated β-cyclodextrin (β-MCD) with the two enantiomers of protonated tyrosine (l- and d-TyrH+) are studied by cryogenic ion trap infrared photo-dissociation spectroscopy. The vibrational spectra in the OH/NH stretch and fingerprint regions are assigned based on density functional theory calculations. The spectrum of both l- and d-TyrH+ complexes contains features characteristic of a first structure with ammonium and acid groups of the amino acid simultaneously interacting with the β-MCD, the phenolic OH remaining free. A second structure involving additional interaction between the phenolic OH and the β-MCD is observed only for the complex with d-TyrH+. The larger abundance of the d-TyrH+ complex in the mass spectrum is tentatively explained in terms of (1) better insertion of d-TyrH+ within the cavity with the hydrophobic aromatic moiety less exposed to hydrophilic solvent molecules and (2) a stiff structure involving three interaction points, namely the ammonium, the phenolic OH and the carboxylic acid OH, which is not possible for the complex with l-TyrH+. The recognition process does not occur through size effects that induce complementarity to the host molecule but specific interactions. These results provide a comprehensive understanding of how the cyclodextrin recognises a chiral biomolecule.
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Affiliation(s)
- Keisuke Hirata
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan.
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Application of Infrared Multiple Photon Dissociation (IRMPD) Spectroscopy in Chiral Analysis. Molecules 2020; 25:molecules25215152. [PMID: 33167464 PMCID: PMC7663940 DOI: 10.3390/molecules25215152] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/03/2020] [Accepted: 11/04/2020] [Indexed: 12/24/2022] Open
Abstract
In recent years, methods based on photodissociation in the gas phase have become powerful means in the field of chiral analysis. Among them, infrared multiple photon dissociation (IRMPD) spectroscopy is a very attractive one, since it can provide valuable spectral and structural information of chiral complexes in addition to chiral discrimination. Experimentally, the method can be fulfilled by the isolation of target diastereomeric ions in an ion trap followed by the irradiation of a tunable IR laser. Chiral analysis is performed by comparing the difference existing in the spectra of enantiomers. Combined with theoretical calculations, their structures can be further understood on the molecular scale. By now, lots of chiral molecules, including amino acids and peptides, have been studied with the method combined with theoretical calculations. This review summarizes the relative experimental results obtained, and discusses the limitation and prospects of the method.
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Zhang Y, Tan X, Wu H, Yang J. Rapid detection of chiral drug ephedrine using erythrosin B for the resonance Rayleigh scattering probe. LUMINESCENCE 2020; 36:425-430. [DOI: 10.1002/bio.3959] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/22/2020] [Accepted: 09/30/2020] [Indexed: 12/25/2022]
Affiliation(s)
- Yuhui Zhang
- Chongqing Three Gorges University Wanzhou Chongqing China
| | - Xuanping Tan
- Chongqing Three Gorges University Wanzhou Chongqing China
| | - Huan Wu
- Chongqing Three Gorges Vocational College Wanzhou Chongqing China
| | - Jidong Yang
- Chongqing Three Gorges University Wanzhou Chongqing China
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15
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Daly S, Rosu F, Gabelica V. Mass-resolved electronic circular dichroism ion spectroscopy. Science 2020; 368:1465-1468. [PMID: 32587016 DOI: 10.1126/science.abb1822] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 04/27/2020] [Indexed: 12/15/2022]
Abstract
DNA and proteins are chiral: Their three-dimensional structures cannot be superimposed with their mirror images. Circular dichroism spectroscopy is widely used to characterize chiral compounds, but data interpretation is difficult in the case of mixtures. We recorded the electronic circular dichroism spectra of DNA helices separated in a mass spectrometer. We studied guanine-rich strands having various secondary structures, electrosprayed them as negative ions, irradiated them with an ultraviolet nanosecond optical parametric oscillator laser, and measured the difference in electron photodetachment efficiency between left and right circularly polarized light. The reconstructed circular dichroism ion spectra resembled those of their solution-phase counterparts, thereby allowing us to assign the DNA helical topology. The ability to measure circular dichroism directly on biomolecular ions expands the capabilities of mass spectrometry for structural analysis.
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Affiliation(s)
- Steven Daly
- Université de Bordeaux, Inserm & CNRS, Laboratoire Acides Nucléiques: Régulations Naturelle et Artificielle (ARNA, U1212, UMR5320), IECB, 33607 Pessac, France
| | - Frédéric Rosu
- Université de Bordeaux, CNRS & Inserm, Institut Européen de Chimie et Biologie (IECB, UMS3033, US001), 33607 Pessac, France
| | - Valérie Gabelica
- Université de Bordeaux, Inserm & CNRS, Laboratoire Acides Nucléiques: Régulations Naturelle et Artificielle (ARNA, U1212, UMR5320), IECB, 33607 Pessac, France.
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16
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Huang L, Gao Z, Yin X, He Q, Pan Y. Exploration of disaccharide as reference towards chiral recognition by the kinetic method. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8764. [PMID: 32079037 DOI: 10.1002/rcm.8764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/17/2020] [Accepted: 02/17/2020] [Indexed: 06/10/2023]
Abstract
RATIONALE A potential use of disaccharides was found as reference compounds in the kinetic method for chiral recognition and enantiomeric quantification. METHODS The experimental procedure consists of three steps: (1) mixing a metal salt, an analyte and a disaccharide at a molar ratio of 1:2:2 with an analyte concentration of 20 μM; (2) introducing the mixture into an electrospray ionization (ESI) mass spectrometry source; (3) isolating the ion [MII (ref*)2 (A) - H]+ and subjecting it to dissociation. Then through the relative ratio of two product ions combined with the kinetic method, chiral recognition and enantiomeric quantification can be achieved. RESULTS The method was verified with good chiral recognition for ten chiral amino acids and three chiral drugs. Among the ten amino acids, Tyr was observed to show best chiral selectivity (Rchiral = 1.62) and good linearity with the correlation coefficient R2 = 0.9991 for the quantitation of the enantiomeric excess (ee) of D-Tyr. Among the tested chiral drugs, naproxen showed best chiral selectivity with Rchiral = 1.56 and good linearity with the correlation coefficient R2 = 0.9997 for the quantitation of the ee of R-naproxen. CONCLUSIONS This established approach proves that a disaccharide can serve as a reference compound for chiral recognition using the kinetic method.
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Affiliation(s)
- Lili Huang
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Zhan Gao
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Xinchi Yin
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Quan He
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Yuanjiang Pan
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
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Domalain V, Hubert-Roux M, Quéguiner L, Fouque DJ, Arnoult E, Speybrouck D, Guillemont J, Afonso C. Ion mobility-mass spectrometry analysis of diarylquinoline diastereomers: Drugs used for tuberculosis treatment. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2019; 25:291-299. [PMID: 30518251 DOI: 10.1177/1469066718813226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Mycobacterium tuberculosis infection results in more than two million deaths per year and is the leading cause of mortality in people infected with HIV. A new structural class of antimycobacterials, the diarylquinolines, has been synthesized and is being highly effective against both M. tuberculosis and multidrug-resistant tuberculosis. As diarylquinolines are biologically active only under their ( R,S) stereoisomeric form, it is essential to differentiate the stereoisomers ( R,S) and ( R,R). To achieve this, tandem mass spectrometry and ion mobility spectrometry-mass spectrometry have been performed with 10 diarylquinoline diastereomers couples. In this study, we investigated cationization with alkali metal cations and several ion mobility drift gases in order to obtain diastereomer differentiations. We have shown that diastereomers of the diarylquinolines family can be differentiated separately by tandem mass spectrometry and in mixture by ion mobility spectrometry-mass spectrometry. However, although the structure of each diastereomer is close, several behaviors could be observed concerning the cationization and the ion mobility spectrometry separation. The ion mobility spectrometry isomer separation efficiency is not easily predictable; it was however observed for all diastereomeric couples with a significant improvement of separation using alkali adducts compared to protonated molecules. With the use of drift gas with higher polarizability only an improvement of separation was obtained in a few cases. Finally, a good correlation of the experimental collision cross section (relative to three-dimensional structure of ions) and the theoretical collision cross section has been shown.
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Affiliation(s)
- Virginie Domalain
- 1 Normandie Université, COBRA, UMR 6014 et FR 3038; Université de Rouen; INSA de Rouen; CNRS, IRCOF, Mont Saint Aignan Cedex, France
| | - Marie Hubert-Roux
- 1 Normandie Université, COBRA, UMR 6014 et FR 3038; Université de Rouen; INSA de Rouen; CNRS, IRCOF, Mont Saint Aignan Cedex, France
| | - Laurence Quéguiner
- 2 JANSSEN, Research & Development, a division of Janssen-Cilag, Val de Reuil Cedex, France
| | - Dany Jd Fouque
- 1 Normandie Université, COBRA, UMR 6014 et FR 3038; Université de Rouen; INSA de Rouen; CNRS, IRCOF, Mont Saint Aignan Cedex, France
| | - Eric Arnoult
- 2 JANSSEN, Research & Development, a division of Janssen-Cilag, Val de Reuil Cedex, France
| | - David Speybrouck
- 2 JANSSEN, Research & Development, a division of Janssen-Cilag, Val de Reuil Cedex, France
| | - Jérôme Guillemont
- 2 JANSSEN, Research & Development, a division of Janssen-Cilag, Val de Reuil Cedex, France
| | - Carlos Afonso
- 1 Normandie Université, COBRA, UMR 6014 et FR 3038; Université de Rouen; INSA de Rouen; CNRS, IRCOF, Mont Saint Aignan Cedex, France
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19
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Zhu YL, Peng ZB, Chen ZP, Wang JK, Shi CX, Chen Y, Yu RQ. Quantification of enantiomers by mass spectrometry based on chemical derivatization and spectral shape deformation quantitative theory. JOURNAL OF MASS SPECTROMETRY : JMS 2019; 54:250-257. [PMID: 30672064 DOI: 10.1002/jms.4334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 01/16/2019] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
A facile mass spectrometric kinetic method for quantitative analysis of chiral compounds was developed by integrating mass spectrometry based on chemical derivatization and the spectral shape deformation quantitative theory. Chemical derivatization was employed to introduce diastereomeric environments to the chiral compounds of interest, resulting in different abundance distribution patterns of fragment ions of the derivatization products of enantiomers in mass spectrometry. The quantitative information of the chiral compounds of interest was extracted from complex mass spectral data by an advanced calibration model derived based on the spectral shape deformation quantitative theory. The performance of the proposed method was tested on the quantitative analysis of R-propranolol in propranolol tablets. Experimental results demonstrated that it could achieve accurate and precise concentration ratio predictions for R-propranolol with an average relative predictive error (ARPE) of about 4%, considerably better than the corresponding results of the mass spectrometric method based on chemical derivatization and the univariate ratiometric model (ARPE: about 12%). The limit of detection (LOD) and limit of quantification (LOQ) of the proposed method for the concentration ratio of R-propranolol were estimated to be 1.5% and 6.0%, respectively. The proposed method is complementary to the existing methods designed for the quantification of enantiomers such as the Cooks kinetic method.
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Affiliation(s)
- Yan-Li Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China
| | - Zu-Bin Peng
- Forensic Science Branch of Changsha Railway Public Security Bureau, No. 19, Shuguang North Road, Furong District, Changsha, Hunan, 410001, China
| | - Zeng-Ping Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China
| | - Ji-Kai Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China
| | - Cai-Xia Shi
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China
| | - Yao Chen
- Hunan Key Lab of Biomedical Materials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, Hunan, 412008, China
| | - Ru-Qin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China
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20
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Wang L, Wang Y, Yu L, Sun C, Kang Y, Zeng S. Direct differentiation of stereoisomers of ezetimibe/ambrisentan/atorvastatin and their mechanism study by electrospray ionization quadrupole time-of-flight mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2018; 53:1238-1246. [PMID: 30276925 DOI: 10.1002/jms.4296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 09/01/2018] [Accepted: 09/18/2018] [Indexed: 06/08/2023]
Abstract
A mass spectrometric method is introduced for rapid and accurate chiral quantification by examining a trimeric metal complex into which a chiral reference is incorporated with the analyte. Several metal ions (CuII , NiII , MgII , MnII , CoII , and ZnII ) were selected as the central metal ion, and chiral drugs ezetimibe (EZM) and ambrisentan (AMB) were used as the reference to each other for isomeric differentiation by using electrospray ionization quadrupole time-of-flight mass spectrometry. Doubly charged trimeric cluster ions instead of the singly charged clusters were applied in this study. Kinetic method (KM) and chiral recognition (CR) method were used for construction of a calibration curve for chiral quantitation. The results from the two methods were found to be complementary to each other, which improved quantitative analysis of stereoisomers for EZM. Furthermore, we have successfully used S-AMB as reference for the chiral differentiation of enantiomeric atorvastatin (ATO), which is frequently combined with EZM as a codrug. Experimental results showed that the binary mixture of EZM and ATO enantiomers can be determined simultaneously without prior separation steps. The direct measurement of chiral purity within 5% was demonstrated. This mass spectrometric method represents an effective alternative to commonly used chromatographic techniques as means of chiral purity determination and is of potential use in rapid screening experiments.
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Affiliation(s)
- Lu Wang
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Hangzhou, PR China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, PR China
| | - Yali Wang
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Hangzhou, PR China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, PR China
| | - Lushan Yu
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Hangzhou, PR China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, PR China
| | - Cuirong Sun
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Hangzhou, PR China
| | - Yu Kang
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Hangzhou, PR China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, PR China
| | - Su Zeng
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Hangzhou, PR China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, PR China
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21
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Dai T, Zhang C, Geng Y, Pan Y, He L. A rapid assay of identification for glimepiride and its cis-isomer by tandem mass spectrometry. Talanta 2018; 187:172-178. [DOI: 10.1016/j.talanta.2018.04.093] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 04/18/2018] [Accepted: 04/29/2018] [Indexed: 01/31/2023]
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22
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Fujihara A, Okawa Y. Chiral and molecular recognition of monosaccharides by photoexcited tryptophan in cold gas-phase noncovalent complexes as a model for chemical evolution in interstellar molecular clouds. Anal Bioanal Chem 2018; 410:6279-6287. [DOI: 10.1007/s00216-018-1238-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/18/2018] [Accepted: 06/28/2018] [Indexed: 12/14/2022]
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23
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Wollschläger JM, Simon K, Gaedke M, Schalley CA. Ion mobility and gas phase H/D exchange: revealing the importance of a single hydrogen bond for the chiral recognition of crown ether ammonium complexes. Chem Commun (Camb) 2018; 54:4967-4970. [PMID: 29701736 DOI: 10.1039/c8cc01671b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Two new BINOL-based chiral crown ether/ammonium complexes are studied by travelling-wave ion-mobility spectrometry. Homo- and heterochiral crown ether/ammonium complexes differ in their collision cross sections, and these differences go along with changes in hydrogen bonding as revealed by gas phase H/D-exchange experiments. Applications for the determination of enantiomeric excess are discussed.
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Affiliation(s)
- Jan M Wollschläger
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany.
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24
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Ma H, Zhang W, Yang X, Zhang Y, Wei S, Zhang H, Ma Y, Dang H. Effects of Genetic Polymorphisms of CYP2B6 on the Pharmacokinetics of Bupropion and Hydroxybupropion in Healthy Chinese Subjects. Med Sci Monit 2018; 24:2158-2163. [PMID: 29637923 PMCID: PMC5914277 DOI: 10.12659/msm.909227] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 03/22/2018] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Bupropion (BUP) is an antidepressant and its pharmacological activity is mediated by its major metabolite, hydroxybupropion (HBUP). We investigated the effects of genetic polymorphisms of CYP2B6 on BUP and HBUP to provide certain evidence on the clinical rational administration of BUP. MATERIAL AND METHODS Plasma BUP and HBUP concentrations were assayed using high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). RESULTS A total of 23 healthy volunteers (eleven participants with CYP2B6*1/*1, 7 participants with CYP2B6*1/*6, 3 participants with CYP2B6*4/*6, and 2 participants with CYP2B6*1/*4) received orally administered 150 mg of BUP according to protocol. Blood samples were obtained up to 96 hours after administration. The whole blood was subject to genotyping by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP). The concentration-time curve (AUC(0→96)), maximum plasma concentration (Cmax), and terminal half-life (t1/2) values of BUP in CYP2B6*1/*4 were lower than those of CYP2B6*1/*1. By contrast, the time to Cmax (tmax) value of the former was higher than that of the latter. The HBUP AUC(0→96) values in CYP2B6*4/*6 and CYP2B6*1/*4 increased to values 1.12-fold and 1.98-fold, compared with CYP2B6*1/*1 carriers. However, the HBUP AUC(0→96) value in CYP2B6*1/*1 was 1.51-fold higher than that in CYP2B6*1/*6. Similarly, the HBUP Cmax values in CYP2B6*4/*6 and CYP2B6*1/*4 increased by 1.12-fold and 1.97-fold, whereas the HBUP Cmax value in CYP2B6*1/*6 decreased to a value 1.64-fold lower than that in CYP2B6*1/*1. CONCLUSIONS Genetic polymorphisms of CYP2B6 influence the pharmacokinetic parameters of BUP and HBUP and thus establish rational BUP administration for Chinese patients in clinical settings.
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Affiliation(s)
- Hui Ma
- College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Wenping Zhang
- Institute of Clinical Pharmacology and Department of Pharmacy, General Hospital of Ningxia Medical University, and College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Xiaoying Yang
- Institute of Clinical Pharmacology and Department of Pharmacy, General Hospital of Ningxia Medical University, and College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Yuxin Zhang
- Institute of Clinical Pharmacology and Department of Pharmacy, General Hospital of Ningxia Medical University, and College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Shijie Wei
- Institute of Clinical Pharmacology and Department of Pharmacy, General Hospital of Ningxia Medical University, and College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Hao Zhang
- Institute of Clinical Pharmacology and Department of Pharmacy, General Hospital of Ningxia Medical University, and College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Yanni Ma
- Institute of Clinical Pharmacology and Department of Pharmacy, General Hospital of Ningxia Medical University, and College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
| | - Hongwan Dang
- Institute of Clinical Pharmacology and Department of Pharmacy, General Hospital of Ningxia Medical University, and College of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia, P.R. China
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Fraschetti C, Montagna M, Crestoni ME, Calcaterra A, Aiello F, Santi L, Filippi A. Kinetic enantioselectivity of a protonated bis(diamido)-bridged basket resorcin[4]arene towards alanine peptides. Org Biomol Chem 2018; 15:1183-1189. [PMID: 28084488 DOI: 10.1039/c6ob02734b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Efficient enantiodiscrimination of some alanine-containing di- and tri-peptides by using chiral protonated bis(diamido)-bridged basket resorcin[4]arenes depends on several factors, including the basicity of the amino acid residues at the C- and N-termini of the peptide.
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Affiliation(s)
- C Fraschetti
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P.le A. Moro 5, 00185 Roma, Italy.
| | - M Montagna
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P.le A. Moro 5, 00185 Roma, Italy.
| | - M E Crestoni
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P.le A. Moro 5, 00185 Roma, Italy.
| | - A Calcaterra
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P.le A. Moro 5, 00185 Roma, Italy.
| | - F Aiello
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - L Santi
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P.le A. Moro 5, 00185 Roma, Italy.
| | - A Filippi
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P.le A. Moro 5, 00185 Roma, Italy.
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Wang Y, Wang L, Chen X, Sun C, Zhu Y, Kang Y, Zeng S. Chiral detection of entecavir stereoisomeric impurities through coordination with R-besivance and Zn II using mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2018; 53:247-256. [PMID: 29314359 DOI: 10.1002/jms.4060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 12/11/2017] [Accepted: 12/19/2017] [Indexed: 06/07/2023]
Abstract
In this study, a mass spectrometry (MS)-based kinetic method (KM) is shown to be successful at analyzing a multichiral center drug stereoisomer, entecavir (ETV), both qualitatively and quantitatively. On the basis of the KM, the bivalent complex ion [MII (A)(ref*)2 ]2+ (MII = divalent metal ion, A = analyte, and ref* = chiral reference) was set as precursor ion in MS/MS. The experiment results suggest strong chiral selectivity between ETV and its isomers when using ZnII coordinated with the chiral reference R-besivance (R-B). The logarithm of the fragment ion abundance ratio and the enantiomeric percentage (%) exhibits a strong linear relation because of the competitive loss of the reference and analyte. The product ion pair [ZnII (R-B)A-H]+ (m/z 733) and [ZnII (R-B)2 -H]+ (m/z 849), together with [R-B + H]+ (m/z 394) and [A + H]+ (m/z 278), can realize the identification of ETV and all of its chiral isomers. Theoretical calculation were also performed using the B3LYP functional with the 6-31G* and LanL2DZ basis set to clarify the mechanism of structural difference of these bivalent complex ions. The results reveal that MS-KM can be used to detect optical impurities without a chiral chromatographic column and fussy sample pretreatment. The established method has been used to determine stereoisomeric impurities of less than 0.1% in ETV crude drug, a demonstration of its simple and effective nature for rapid detection of stereoisomeric impurities.
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Affiliation(s)
- Yali Wang
- Institute of Drug Metabolism and Drug Analysis, College of Pharmaceutical Sciences, Hangzhou, 310058, Zhejiang, China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Lu Wang
- Institute of Drug Metabolism and Drug Analysis, College of Pharmaceutical Sciences, Hangzhou, 310058, Zhejiang, China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Xiaolei Chen
- Institute of Drug Metabolism and Drug Analysis, College of Pharmaceutical Sciences, Hangzhou, 310058, Zhejiang, China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Cuirong Sun
- Institute of Drug Metabolism and Drug Analysis, College of Pharmaceutical Sciences, Hangzhou, 310058, Zhejiang, China
| | - Yixin Zhu
- Zhejiang Haochuang Biotech Co, Ltd, Hangzhou, 311121, Zhejiang, China
| | - Yu Kang
- Institute of Drug Metabolism and Drug Analysis, College of Pharmaceutical Sciences, Hangzhou, 310058, Zhejiang, China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Su Zeng
- Institute of Drug Metabolism and Drug Analysis, College of Pharmaceutical Sciences, Hangzhou, 310058, Zhejiang, China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, 310058, Zhejiang, China
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Yu X, Chau MC, Tang WK, Siu CK, Yao ZP. Self-Assembled Binuclear Cu(II)–Histidine Complex for Absolute Configuration and Enantiomeric Excess Determination of Naproxen by Tandem Mass Spectrometry. Anal Chem 2018; 90:4089-4097. [DOI: 10.1021/acs.analchem.7b05407] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiangying Yu
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation) and Shenzhen Key Laboratory of Food Biological Safety Control, Shenzhen Research Institute of Hong Kong Polytechnic University, Shenzhen 518057, China
- School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Man-Chu Chau
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong SAR, China
| | - Wai Kit Tang
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong SAR, China
| | - Chi-Kit Siu
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong SAR, China
| | - Zhong-Ping Yao
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation) and Shenzhen Key Laboratory of Food Biological Safety Control, Shenzhen Research Institute of Hong Kong Polytechnic University, Shenzhen 518057, China
- State Key Laboratory of Chirosciences, Food Safety and Technology Research Centre and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules (Yanbian University), Ministry of Education, Yanji 133002, Jilin, China
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28
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Begala M. Conversion of benzoic acid into phenol in an ITMS under CI-MS n conditions. Recognition of ortho-chlorobenzoyl derivatives. JOURNAL OF MASS SPECTROMETRY : JMS 2018; 53:30-38. [PMID: 28929601 DOI: 10.1002/jms.4031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 09/01/2017] [Accepted: 09/11/2017] [Indexed: 06/07/2023]
Abstract
Isomeric chlorobenzoyl cations (m/z 139), under collision-induced experiments, fragment identically. Chlorobenzoyl cations can be efficiently converted into cholorophenol radical cations by the reaction with methanol in the ion trap analyzer under CI-MSn conditions. The substitution of the carbonyl group with a hydroxyl moiety is able to induce an ortho effect, which is absent in the startingortho-chlorobenzoyl cation. This transformation could be useful to recognize ortho-chlorinated benzoyl derivatives without the need of MS spectrum comparison of the whole set of isomers. The method reported in this study could be applicable to biologically active molecules that dissociate to form the chlorobenzoyl cations under CI or CI collision-induced dissociation conditions, such as indomethacin, the degradation products from the insect growth regulator 1-(2-chlorobenzoyl)-3-(4-chlorophenyl) urea, and lorazepam.
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Affiliation(s)
- Michela Begala
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, via Ospedale 72, 09124, Cagliari, Italy
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29
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Chiral differentiation of amino acids through binuclear copper bound tetramers by ion mobility mass spectrometry. Anal Chim Acta 2017; 981:62-70. [DOI: 10.1016/j.aca.2017.05.026] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 05/16/2017] [Accepted: 05/21/2017] [Indexed: 11/23/2022]
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30
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Wang J, Jiang XX, Zhao W, Hu J, Guan QY, Xu JJ, Chen HY. On-line Identification of chiral ofloxacin in milk with an extraction/ionization device coupled to Electrospray Mass Spectrometry. Talanta 2017; 171:190-196. [DOI: 10.1016/j.talanta.2017.04.071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 04/26/2017] [Accepted: 04/30/2017] [Indexed: 01/18/2023]
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31
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Wang L, Wang Y, Chai Y, Kang Y, Sun C, Zeng S. Nickel(II)-assisted enantiomeric differentiation and quantitation of tadalafil by direct electrospray ionization mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2017; 52:411-416. [PMID: 28470986 DOI: 10.1002/jms.3939] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 04/19/2017] [Accepted: 04/21/2017] [Indexed: 06/07/2023]
Abstract
A facile method based on electrospray mass spectrometry was established and validated for the differentiation of enantiomeric tadalafil isomers without using chiral chromatographic separation. The enantiomers were coupled with a chiral selector to form diastereomeric complex ions. Nickel-tadalafil complexes, [NiII (tadalafil)(l-Trp)-H]+ , produced a characteristic fragment ion at m/z 524 by loss of 1-methyl-1,6-dihydropyrazine-2,5-dione via collision-induced dissociation. The relative abundance of this fragment ion to the precursor contributed to differentiate tadalafil enantiomers, and energy-resolved product-ion spectra were applied to determine the molar composition of tadalafil in the mixture (R,R and S,S) as well. In addition, the other two forms of stereomeric isomers of tadalafil (R,S and S,R) could be also distinguished and analyzed by this method. The method was validated in different types of mass spectrometers (AB quadrupole time-of-flight and Bruker ion trap) and also verified by a chiral high-performance liquid chromatography coupled with quadrupole time-of-flight. The chiral determination of tadalafil using MS method proved to be rapid (1-min run time for each sample) and to have the same accuracy and precision comparable to chiral liquid chromatography mass spectrometry methods. This method provides an alternative to commonly used chromatographic technique for chiral determination and is particularly useful in rapid screening in enantioselective synthesis and enantiomeric impurity detection in pharmaceutical industry. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- L Wang
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, 310058, China
| | - Y Wang
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, 310058, China
| | - Y Chai
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Y Kang
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, 310058, China
| | - C Sun
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - S Zeng
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, Zhejiang University, Hangzhou, 310058, China
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32
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Yu X, Yao ZP. Chiral recognition and determination of enantiomeric excess by mass spectrometry: A review. Anal Chim Acta 2017; 968:1-20. [DOI: 10.1016/j.aca.2017.03.021] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 03/15/2017] [Accepted: 03/16/2017] [Indexed: 10/19/2022]
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33
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Rebrov O, Kulyk K, Ryding M, Thomas RD, Uggerud E, Larsson M. Chirally sensitive collision induced dissociation of proton-bound diastereomeric complexes of tryptophan and 2-butanol. Chirality 2017; 29:115-119. [PMID: 28332282 DOI: 10.1002/chir.22679] [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: 11/11/2016] [Revised: 10/01/2017] [Accepted: 10/02/2017] [Indexed: 02/05/2023]
Abstract
In this work we report the stereo-dependent collision-induced dissociation (CID) of proton-bound complexes of tryptophan and 2-butanol. The dissociation efficiency was measured as a function of collision energy in single collision mode. The homochiral complex was found to be less stable against CID than a heterochiral one. Additional gas dependence measurements were performed with diastereomeric complexes that confirm the findings.
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Affiliation(s)
- Oleksii Rebrov
- Department of Physics, AlbaNova University Center, Stockholm University, Stockholm, Sweden
| | - Kostiantyn Kulyk
- Department of Physics, AlbaNova University Center, Stockholm University, Stockholm, Sweden
| | - Mauritz Ryding
- Department of Chemistry, University of Oslo, Oslo, Norway
| | - Richard D Thomas
- Department of Physics, AlbaNova University Center, Stockholm University, Stockholm, Sweden
| | - Einar Uggerud
- Department of Chemistry, University of Oslo, Oslo, Norway
| | - Mats Larsson
- Department of Physics, AlbaNova University Center, Stockholm University, Stockholm, Sweden
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34
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Fujihara A, Maeda N, Doan TN, Hayakawa S. Enantiomeric Excess Determination for Monosaccharides Using Chiral Transmission to Cold Gas-Phase Tryptophan in Ultraviolet Photodissociation. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:224-228. [PMID: 27739022 DOI: 10.1007/s13361-016-1519-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/27/2016] [Accepted: 10/01/2016] [Indexed: 06/06/2023]
Abstract
Chiral transmission between monosaccharides and amino acids via photodissociation in the gas phase was examined using a tandem mass spectrometer fitted with an electrospray ionization source and a cold ion trap in order to investigate the origin of the homochirality of biomolecules in molecular clouds. Ultraviolet photodissociation mass spectra of cold gas-phase noncovalent complexes of the monosaccharide enantiomers glucose (Glc) and galactose (Gal) with protonated L-tryptophan H+(L-Trp) were obtained by photoexcitation of the indole ring of L-Trp. L-Trp dissociated via Cα-Cβ bond cleavage when noncovalently complexed with D-Glc; however, no dissociation of L-Trp occurred in the homochiral H+(L-Trp)(L-Glc) noncovalent complex, where the energy absorbed by L-Trp was released through the evaporation of L-Glc. This enantioselective photodissociation of Trp was due to the transmission of chirality from Glc to Trp via photodissociation in the gas-phase noncovalent complexes, and was applied to the quantitative chiral analysis of monosaccharides. The enantiomeric excess of monosaccharides in solution could be determined by measuring the relative abundance of the two product ions in a single photodissociation mass spectrum of the cold gas-phase noncovalent complex with H+(L-Trp), and by referring to the linear relationships derived in this work. Graphical Abstract ᅟ.
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Affiliation(s)
- Akimasa Fujihara
- Department of Chemistry, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan.
| | - Naoto Maeda
- Department of Chemistry, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
| | - Thuc N Doan
- Department of Chemistry, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
| | - Shigeo Hayakawa
- Department of Chemistry, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
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35
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Determination of ᴅ-phenylglycine in the presence of its ʟ-enantiomer using a turn-on fluorescent nano-chemosensor. Talanta 2017; 162:547-551. [DOI: 10.1016/j.talanta.2016.10.054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 10/10/2016] [Accepted: 10/12/2016] [Indexed: 11/17/2022]
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36
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Wang L, Chai Y, Zhu W, Pan Y, Sun C, Zeng S. Doubly charged trimeric cluster ions: effective in mutual chiral recognition of tadalafil and three proton pump inhibitors. Analyst 2017; 142:745-751. [DOI: 10.1039/c6an02666d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mutual chiral recognition of four stereoisomers of tadalafil and three pairs of enantiomers of proton pump inhibitors (PPIs), as well as enantiomers excess analysis are achieved on the basis of the competitive fragmentation of doubly charged trimeric NiIIcluster ion.
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Affiliation(s)
- Lu Wang
- Institute of Drug Metabolism and Analysis
- College of Pharmaceutical Sciences
- Hangzhou 310058
- PR China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
| | - Yunfeng Chai
- Institute of Drug Metabolism and Analysis
- College of Pharmaceutical Sciences
- Hangzhou 310058
- PR China
| | - Wenquan Zhu
- Department of Quality Control
- Zhejiang Huahai Pharmaceutical Ltd
- Taizhou
- China
| | - Yuanjiang Pan
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- PR China
| | - Cuirong Sun
- Institute of Drug Metabolism and Analysis
- College of Pharmaceutical Sciences
- Hangzhou 310058
- PR China
| | - Su Zeng
- Institute of Drug Metabolism and Analysis
- College of Pharmaceutical Sciences
- Hangzhou 310058
- PR China
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research
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37
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Yin Q, Wang L, Sun C. Rapid identification of miglitol and its isomers by electrospray ionization tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2016; 30 Suppl 1:155-161. [PMID: 27539431 DOI: 10.1002/rcm.7618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
RATIONALE Miglitol (1) derived from 1-deoxynojirimycin is an iminosugar that is useful in the treatment of type 2 diabetes mellitus. Isomers (2, 3, 4) that differ at the C2 and C3 positions of hydroxyl groups from miglitol are impurities resulting from the synthesis of miglitol. The impurity profile of a drug substance is critical to its safety assessment and is important for monitoring the manufacturing process. Therefore, developing a fast and simple method that can rapidly identify the configuration of miglitol and its isomers (2, 3, 4) is necessary. METHODS Miglitol (1) and its isomers 2-4 were derivatized with benzoboroxole (o-hydroxymethyl phenylboronic acid) at room temperature, and the cyclic boronate esters of different configurations were generated. Protonated miglitol and its isomers 2-4, as well as their derivatives, were subjected to collision-induced dissociation (CID) experiments by using electrospray ionization tandem mass spectrometry (ESI-MS/MS). Elemental compositions of all the ions were verified by electrospray ion-trap time-of-flight mass spectrometry. RESULTS Fragmentation of the protonated miglitol and its isomers gave the same fragment ions at m/z 190 and m/z 146. Both their fragmentation behavior and abundances were similar. Whereas the CID mass spectra of the precursor ions (m/z 322) of cyclic boronate esters showed four characteristic fragment ions, m/z 214 ([M-C7 H8 O](-) ), m/z 196 ([M-C7 H8 O-H2 O](-) ), m/z 151 ([M-C8 H13 NO3 ](-) ), and m/z 133 ([M-C8 H15 NO4 ](-) ). The abundances of these fragments are different which are related to the stereostructure of miglitol and its isomers. CONCLUSIONS A facile method was established for the differentiation of the spatial configuration of miglitol and its isomers using the relative abundances of the fragment ions of boronate esters generated from in-situ reaction between analytes and benzoboroxole by ESI-MS/MS. This approach could be used to rapidly identify the stereoisomers and monitor the epimerization of miglitol and its isomers in chemical reactions and manufacturing processes. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Qiuhong Yin
- Institute of Drug Metabolism and Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, Zhejiang, China
| | - Lin Wang
- Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Cuirong Sun
- Institute of Drug Metabolism and Analysis, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China
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38
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Gaye MM, Nagy G, Clemmer DE, Pohl NLB. Multidimensional Analysis of 16 Glucose Isomers by Ion Mobility Spectrometry. Anal Chem 2016; 88:2335-44. [PMID: 26799269 DOI: 10.1021/acs.analchem.5b04280] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Diastereomeric adducts comprising an enantiomerically pure monosaccharide analyte, a peptide, and/or an amino acid and a divalent metal ion (for 16 different monosaccharide isomers) are generated by electrospray ionization and analyzed by combined ion mobility spectrometry-mass spectrometry (IMS-MS) techniques. Mobility distributions of [l-Ser + M + H](+) (where l-Ser is l-serine and M is a given monosaccharide), [l-Phe-Gly + M + H](+) (where l-Phe-Gly is l-phenylalanine-glycine), and [Mn(II) + (l-Phe-Gly - H) + M](+) complex ions are used to determine collision cross sections (ccs in Å(2)), and groups of cross sections for different clusters are proposed as means of identifying the sugar isomers. Within one type of complex, variations in ccs do not always allow delineation between the 16 glucose isomers, but interestingly, when ccs of three different ions are combined as a spatial vector, enantiomers are partially resolved. As a result of this analysis, l-glucose, d-glucose, l-allose, d-allose, d-gulose, d-galactose, and l-mannose are delineated, and for all eight enantiomeric pairs, d and l entities display different coordinates. In addition, different combinations of amino acids, peptide, and metal ions are surveyed, and the potential for yielding unique coordinates for the generated diastereomeric complexes is assessed.
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Affiliation(s)
- M M Gaye
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - G Nagy
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - D E Clemmer
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
| | - N L B Pohl
- Department of Chemistry, Indiana University , Bloomington, Indiana 47405, United States
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39
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Bain RM, Yan X, Raab SA, Ayrton ST, Flick TG, Cooks RG. On-line chiral analysis using the kinetic method. Analyst 2016; 141:2441-6. [PMID: 26979554 DOI: 10.1039/c6an00100a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Chiral analysis of constituents in solution-phase reaction mixtures can be performed by tandem mass spectrometry using the kinetic method to determine the enantiomeric excess (ee).
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Affiliation(s)
- Ryan M. Bain
- Department of Chemistry
- Purdue University
- West Lafayette
- USA
| | - Xin Yan
- Department of Chemistry
- Purdue University
- West Lafayette
- USA
| | | | | | | | - R. Graham Cooks
- Department of Chemistry
- Purdue University
- West Lafayette
- USA
- Center for Analytical Instrumentation Development
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40
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Fanood MMR, Ram NB, Lehmann CS, Powis I, Janssen MHM. Enantiomer-specific analysis of multi-component mixtures by correlated electron imaging-ion mass spectrometry. Nat Commun 2015; 6:7511. [PMID: 26104140 PMCID: PMC4491818 DOI: 10.1038/ncomms8511] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 05/14/2015] [Indexed: 11/09/2022] Open
Abstract
Simultaneous, enantiomer-specific identification of chiral molecules in multi-component mixtures is extremely challenging. Many established techniques for single-component analysis fail to provide selectivity in multi-component mixtures and lack sensitivity for dilute samples. Here we show how enantiomers may be differentiated by mass-selected photoelectron circular dichroism using an electron-ion coincidence imaging spectrometer. As proof of concept, vapours containing ∼1% of two chiral monoterpene molecules, limonene and camphor, are irradiated by a circularly polarized femtosecond laser, resulting in multiphoton near-threshold ionization with little molecular fragmentation. Large chiral asymmetries (2-4%) are observed in the mass-tagged photoelectron angular distributions. These asymmetries switch sign according to the handedness (R- or S-) of the enantiomer in the mixture and scale with enantiomeric excess of a component. The results demonstrate that mass spectrometric identification of mixtures of chiral molecules and quantitative determination of enantiomeric excess can be achieved in a table-top instrument.
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Affiliation(s)
- Mohammad M Rafiee Fanood
- LaserLaB Amsterdam and Department of Physics and Astronomy, VU University Amsterdam, De Boelelaan 1081, Amsterdam 1081 HV, The Netherlands
| | - N Bhargava Ram
- LaserLaB Amsterdam and Department of Physics and Astronomy, VU University Amsterdam, De Boelelaan 1081, Amsterdam 1081 HV, The Netherlands
| | - C Stefan Lehmann
- LaserLaB Amsterdam and Department of Physics and Astronomy, VU University Amsterdam, De Boelelaan 1081, Amsterdam 1081 HV, The Netherlands
| | - Ivan Powis
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, UK
| | - Maurice H M Janssen
- LaserLaB Amsterdam and Department of Physics and Astronomy, VU University Amsterdam, De Boelelaan 1081, Amsterdam 1081 HV, The Netherlands
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41
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Begala M. Evaluation of the α-phenylvinyl cation as a chemical ionization reagent for the differentiation of isomeric substituted phenols in an ITMS. JOURNAL OF MASS SPECTROMETRY : JMS 2015; 50:693-702. [PMID: 26149114 DOI: 10.1002/jms.3578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 01/29/2015] [Accepted: 02/08/2015] [Indexed: 06/04/2023]
Abstract
Ion-molecule reactions between the α-phenylvinyl cation and isomeric naturally occurring phenols were investigated using a quadruple ion trap mass spectrometer. The α-phenylvinyl cation m/z 103, generated by chemical ionization from phenylacetylene, reacts with neutral aromatic compounds to form the characteristic species: [M + 103](+) adduct ions and the trans-vinylating product ions [M + 25](+) , which correspond to [M + 103](+) adduct after the loss of benzene. Isomeric differentiation of several ring-substituted phenols was achieved by using collision-induced dissociation of the [M + 103](+) adduct ions. This method also showed to be effective in the differentiation of 4-ethylguaiacol from one of its structural isomers that displays identical EI and EI/MS/MS spectra. The effects of gas-phase alkylation with phenylvinyl cation on the dissociation behavior were examined using mass spectrometry(n) and labeled derivatives. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Michela Begala
- Unit of Drug Sciences, Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
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42
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Afkhami A, Kafrashi F, Ahmadi M, Madrakian T. A new chiral electrochemical sensor for the enantioselective recognition of naproxen enantiomers using l-cysteine self-assembled over gold nanoparticles on a gold electrode. RSC Adv 2015. [DOI: 10.1039/c5ra07396k] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A chiral electrochemical sensor for analyzing the enantiomeric composition of chiral compounds is reported.
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Affiliation(s)
- Abbas Afkhami
- Faculty of Chemistry
- Bu Ali Sina University
- Hamedan
- Iran
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43
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Nanoclusters formation in ion mobility spectrometry and change separation selectivity of picoline isomers. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s12127-014-0157-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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Zehnacker A. Chirality effects in gas-phase spectroscopy and photophysics of molecular and ionic complexes: contribution of low and room temperature studies. INT REV PHYS CHEM 2014. [DOI: 10.1080/0144235x.2014.911548] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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45
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Karthikraj R, Chitumalla RK, Bhanuprakash K, Prabhakar S, Vairamani M. Enantiomeric differentiation of β-amino alcohols under electrospray ionization mass spectrometric conditions. JOURNAL OF MASS SPECTROMETRY : JMS 2014; 49:108-116. [PMID: 24446270 DOI: 10.1002/jms.3312] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 11/07/2013] [Accepted: 11/15/2013] [Indexed: 06/03/2023]
Abstract
The enantiomeric differentiation of a series of chiral β-amino alcohols (A) is attempted, for the first time, by applying the kinetic method using L-proline, L-tryptophan, 4-iodo-L-phenylalanine or 3, 5-diiodo-L-tyrosine as the chiral references (Ref) and Cu(2+) or Ni(2+) ion (M) as the central metal ion. The trimeric diastereomeric adduct ions, [M+(Ref)2+A-H](+), formed under electrospray ionization conditions, are subjected for collision-induced dissociation (CID) experiments. The products ions, formed by the loss of either a reference or an analyte, detected in the CID spectra are evaluated for the enantiomeric differentiation. All the references showed enantiomeric differentiation and the R(chiral) values are better for the aromatic alcohols than for aliphatic alcohols. Notably, the R(chiral) values of the aliphatic amino alcohols enhanced when Ni(2+) is used as the central metal ion. The experimental results are well supported by computational studies carried out on the diastereomeric dimeric complexes. The computational data of amino alcohols is correlated with that of amino acids to understand the structural interaction of amino alcohols with reference molecule and central metal ion and their role on the stabilization of the dimeric complexes. Application of flow injection MS/MS method is also demonstrated for the enantiomeric differentiation of the amino alcohols.
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Affiliation(s)
- R Karthikraj
- National Centre for Mass Spectrometry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, A.P., India
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Wang L, Chai Y, Ni Z, Wang L, Hu R, Pan Y, Sun C. Qualitative and quantitative analysis of enantiomers by mass spectrometry: Application of a simple chiral chloride probe via rapid in-situ reaction. Anal Chim Acta 2014; 809:104-8. [DOI: 10.1016/j.aca.2013.11.055] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 11/25/2013] [Accepted: 11/27/2013] [Indexed: 11/30/2022]
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47
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Trojanowicz M, Kaniewska M. Flow methods in chiral analysis. Anal Chim Acta 2013; 801:59-69. [DOI: 10.1016/j.aca.2013.09.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Revised: 08/31/2013] [Accepted: 09/10/2013] [Indexed: 11/30/2022]
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48
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Awad H, El-Aneed A. Enantioselectivity of mass spectrometry: challenges and promises. MASS SPECTROMETRY REVIEWS 2013; 32:466-483. [PMID: 23775620 DOI: 10.1002/mas.21379] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 03/15/2012] [Accepted: 03/15/2013] [Indexed: 06/02/2023]
Abstract
With the fast growing market of pure enantiomer drugs and bioactive molecules, new chiral-selective analytical tools have been instigated including the use of mass spectrometry (MS). Even though MS is one of the best analytical tools that has efficiently been used in several pharmaceutical and biological applications, traditionally MS is considered as a "chiral-blind" technique. This limitation is due to the MS inability to differentiate between two enantiomers of a chiral molecule based merely on their masses. Several approaches have been explored to assess the potential role of MS in chiral analysis. The first approach depends on the use of MS-hyphenated techniques utilizing fast and sensitive chiral separation tools such as liquid chromatography (LC), gas chromatography (GC), and capillary electrophoresis (CE) coupled to MS detector. More recently, several alternative separation techniques have been evaluated such as supercritical fluid chromatography (SFC) and capillary electrochromatography (CEC); the latter being a hybrid technique that combines the efficiency of CE with the selectivity of LC. The second approach is based on using the MS instrument solely for the chiral recognition. This method depends on the behavioral differences between enantiomers towards a foreign molecule and the ability of MS to monitor such differences. These behavioral differences can be divided into three types: (i) differences in the enantiomeric affinity for association with the chiral selector, (ii) differences of the enantiomeric exchange rate with a foreign reagent, and (iii) differences in the complex MS dissociation behaviors of the enantiomers. Most recently, ion mobility spectrometry was introduced to qualitatively and quantitatively evaluate chiral compounds. This article provides an overview of MS role in chiral analysis by discussing MS based methodologies and presenting the challenges and promises associated with each approach.
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Affiliation(s)
- Hanan Awad
- College of Pharmacy and Nutrition, University of Saskatchewan, Thorvaldson Building, 110 Science Place, Saskatoon, Saskatchewan, Canada, S7N 5C9
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49
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A novel methodology for analysis of enantiomers through determination of their critical micelle concentrations using spectrophotometric method. J Pharm Biomed Anal 2013; 83:96-100. [DOI: 10.1016/j.jpba.2013.04.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2012] [Revised: 04/10/2013] [Accepted: 04/17/2013] [Indexed: 11/23/2022]
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50
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Lalli PM, Corilo YE, Fasciotti M, Riccio MF, de Sa GF, Daroda RJ, Souza GHMF, McCullagh M, Bartberger MD, Eberlin MN, Campuzano IDG. Baseline resolution of isomers by traveling wave ion mobility mass spectrometry: investigating the effects of polarizable drift gases and ionic charge distribution. JOURNAL OF MASS SPECTROMETRY : JMS 2013; 48:989-997. [PMID: 24078238 DOI: 10.1002/jms.3245] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 05/28/2013] [Accepted: 06/06/2013] [Indexed: 06/02/2023]
Abstract
We have studied the behavior of isomers and analogues by traveling wave ion mobility mass spectrometry (TWIM-MS) using drift-gases with varying masses and polarizabilities. Despite the reduced length of the cell (18 cm), a pair of constitutional isomers, N-butylaniline and para-butylaniline, with theoretical collision cross-section values in helium (ΩHe ) differing by as little as 1.2 Å(2) (1.5%) but possessing contrasting charge distribution, showed baseline peak-to-peak resolution (Rp-p ) for their protonated molecules, using carbon dioxide (CO2), nitrous oxide (N2O) and ethene (C2H4 ) as the TWIM drift-gas. Near baseline Rp-p was also obtained in CO2 for a group of protonated haloanilines (para-chloroaniline, para-bromoaniline and para-iodoaniline) which display contrasting masses and theoretical ΩHe , which differ by as much as 15.7 Å(2) (19.5%) but similar charge distributions. The deprotonated isomeric pair of trans-oleic acid and cis-oleic acid possessing nearly identical theoretical ΩHe and ΩN2 as well as similar charge distributions, remained unresolved. Interestingly, an inversion of drift-times were observed for the 1,3-dialkylimidazolium ions when comparing He, N2 and N2O. Using density functional theory as a means of examining the ions electronic structure, and He and N2-based trajectory method algorithm, we discuss the effect of the long-range charge induced dipole attractive and short-range Van der Waals forces involved in the TWIM separation in drift-gases of differing polarizabilities. We therefore propose that examining the electronic structure of the ions under investigation may potentially indicate whether the use of more polarizable drift-gases could improve separation and the overall success of TWIM-MS analysis.
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Affiliation(s)
- Priscila M Lalli
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas - UNICAMP, 13084-970, Campinas, SP, Brazil
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