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Kapavarapu MSRS, Ma Y, Vasudevan S, Chew JW. Economic Analysis of Membrane-Based Separation of Biocatalyst: Mode of Operation and Stage Configuration. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- MSR Sridhar Kapavarapu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Yunqiao Ma
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Suraj Vasudevan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Jia Wei Chew
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
- Singapore Membrane Technology Centre, Nanyang Environmental and Water Research Institute, Nanyang Technological University, Singapore 637141, Singapore
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2
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Ong CS, Oor JZ, Tan SJ, Chew JW. Enantiomeric Separation of Racemic Mixtures Using Chiral-Selective and Organic-Solvent-Resistant Thin-Film Composite Membranes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:10875-10885. [PMID: 35175724 DOI: 10.1021/acsami.1c25175] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Membrane-based chiral separation has emerged as a promising method for the efficient separation of chiral molecules. Ideally, the membranes should be able to achieve good enantioselectivity, while maintaining high stability in harsh solvents. However, engineering membranes for chiral molecular separation in harsh organic solvent environments is still a big challenge. In this study, we fabricated a novel thin-film composite nanofiltration membrane composed of (2-hydroxypropyl)-beta-cyclodextrin (HP-β-CD) as the chiral selector for the enantiomeric separation of racemic 1-phenylethanol chiral compounds in organic solvents. The fabricated membrane achieved 60-80% enantioselectivity of R-phenylethanol over S-phenylethanol in nonpolar n-hexane. It was found that HP-β-CD played a critical role in the enantioselective performance, as the membrane without HP-β-CD showed no chiral selectivity. Molecular docking calculations substantiate the experiments by showing that the average free binding energy of S-phenylethanol with HP-β-CD is stronger than that of R-phenylethanol, indicating that the complex of S-phenylethanol with HP-β-CD has a higher thermodynamic stability and greater interaction. Furthermore, the crosslinked network between HP-β-CD and the polyamide layer conferred the membrane with solvent stability in nonpolar solvents. Moreover, this new membrane exhibited good solvent permeance and a molecular weight cutoff of around 650 g mol-1.
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Affiliation(s)
- Chi Siang Ong
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Jia Zheng Oor
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
- Singapore Membrane Technology Centre, Nanyang Environmental and Water Research Institute, Nanyang Technological University, Singapore 637141, Singapore
| | - Shiliang Johnathan Tan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Jia Wei Chew
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
- Singapore Membrane Technology Centre, Nanyang Environmental and Water Research Institute, Nanyang Technological University, Singapore 637141, Singapore
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Lay HT, Yeow RJE, Ma Y, Zydney AL, Wang R, Chew JW. Internal membrane fouling by proteins during microfiltration. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119589] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4
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5
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Zhang P, Cheng Q, Zeng L, Xu W, Yuan X, Tang K. Enzymatic enantioselective hydrolysis of 2-phenylpropionic acid ester: Experiment and simulation. Chem Eng Res Des 2019. [DOI: 10.1016/j.cherd.2019.07.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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6
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He L, Chen X, Li X, Zhou Z, Ren Z. Chiral co-selector induced chirality switching in the enantioseparation of ofloxacin by forming a co-crystal. NEW J CHEM 2019. [DOI: 10.1039/c9nj02921d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The chiral selectivity in the cocrystal process could be switched by changing the combination of chiral co-selectors.
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Affiliation(s)
- Lichao He
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- People's Republic of China
| | - Xinjian Chen
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- People's Republic of China
| | - Xiangrong Li
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- People's Republic of China
| | - Zhiyong Zhou
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- People's Republic of China
| | - Zhongqi Ren
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- People's Republic of China
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7
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Xu W, Cheng Q, Zhang P, Zeng L, Tang K. Kinetic study on enhanced reactive extraction separation of terbutaline enantiomers by hydrophobic phase transfer. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.12.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Zhang P, Wang S, Tang K, Xu W, Qiu Y, Xiong B, Liu Y. Multistage enantioselective reactive extraction of terbutaline enantiomers by hydrophobic phase transfer: Experiment and modeling. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.09.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Basheer AA. Chemical chiral pollution: Impact on the society and science and need of the regulations in the 21 st century. Chirality 2017; 30:402-406. [PMID: 29266491 DOI: 10.1002/chir.22808] [Citation(s) in RCA: 174] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 11/21/2017] [Accepted: 11/29/2017] [Indexed: 01/11/2023]
Abstract
The chiral pollution is a serious issue for our health and environment due to the enantio-selective biodegradation of the chiral pollutants. It has adverse impact on our society and science. There is a big loss of our economy due to the use of racemic agrochemicals. The most notorious chiral pollutants are pesticides, polychloro biphenyls, polyaromatic hydrocarbons, brominated flame retardants, drugs, and pharmaceuticals. More than 1500 chiral pollutants are present in the environment. Unfortunately, there is no regulation and control of the chiral pollutants. Therefore, it is an urgent need of the present 21st century to develop a data bank on the chiral pollutants, guidelines for controlling the production, sale and use of the racemic agrochemicals and the other industrial products. The Governments of the different countries should come forward to initiate the regulations. US, FDA, US EPA, and WHO are the most important regulatory authorities and should think about the chiral pollutants. The present article highlights the impact of the chiral pollution on the society and science. Besides, the efforts have also been made to emphasize the need of the regulations to control the chiral pollution.
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Chiral ligand exchange countercurrent chromatography: Equilibrium model study on enantioseparation of mandelic acid. J Chromatogr A 2016; 1447:115-21. [DOI: 10.1016/j.chroma.2016.04.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 02/26/2016] [Accepted: 04/07/2016] [Indexed: 11/24/2022]
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11
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Zhang P, Xie N, Tang K, Chen X, Xu W. Modeling and optimization of two phase system for recycling high-speed counter-current chromatographic separation of ketoconazole enantiomers. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.03.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Zhang P, Sun G, Qiu Y, Tang K, Zhou C, Yang C. Equilibrium study on enantioselective distribution of amlodipine besilate enantiomers in a biphasic recognition chiral extraction system. J INCL PHENOM MACRO 2016. [DOI: 10.1007/s10847-016-0612-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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13
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Feng X, Tang K, Zhang P, Yin S. Experimental and Model Studies on Continuous Separation of 2-Phenylpropionic Acid Enantiomers by Enantioselective Liquid-Liquid Extraction in Centrifugal Contactor Separators. Chirality 2016; 28:235-44. [DOI: 10.1002/chir.22567] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 11/18/2015] [Accepted: 11/20/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaofeng Feng
- College of Chemistry and Chemical Engineering; Hunan University; Changsha People's Republic of China
| | - Kewen Tang
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; Yueyang People's Republic of China
| | - Pangliang Zhang
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; Yueyang People's Republic of China
| | - Shuangfeng Yin
- College of Chemistry and Chemical Engineering; Hunan University; Changsha People's Republic of China
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Tang K, Sun G, Zhang P, Yang W, Zhou C, Yang C. Modelling and optimization of a two phase system for the separation of equol enantiomers by recycling high-speed counter-current chromatography. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.06.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Tang K, Fu T, Zhang P, Yang C, Zhou C, Liang E. Modeling and experimental evaluation of enantioselective liquid-liquid extraction of (D, L)-4-chlorophenylglycine in a biphasic system. Chem Eng Res Des 2015. [DOI: 10.1016/j.cherd.2014.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Zhang P, Zhang H, Tang K, Yi J, Huang Y. Influence of pH on enantioselective extraction of aromatic acid enantiomers in centrifugal contactor separators: Experiments and simulation. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2014.11.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Zhang P, Sun G, Tang K, Yang W, Sui G, Zhou C. Enantiomeric separation of oxybutynin by recycling high-speed counter-current chromatography with hydroxypropyl-β-cyclodextrin as chiral selector. J Sep Sci 2014; 37:3443-50. [DOI: 10.1002/jssc.201400812] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Revised: 08/28/2014] [Accepted: 08/31/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Panliang Zhang
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; Yueyang China
| | - Genlin Sun
- College of Chemistry and Chemical Engineering; Hunan University; Changsha China
| | - Kewen Tang
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; Yueyang China
| | - Weijun Yang
- College of Chemistry and Chemical Engineering; Hunan University; Changsha China
| | - Guoqing Sui
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; Yueyang China
| | - Congshan Zhou
- Department of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; Yueyang China
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18
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Xu C, Zhao C, Li M, Wu L, Ren J, Qu X. Artificial evolution of graphene oxide chemzyme with enantioselectivity and near-infrared photothermal effect for cascade biocatalysis reactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:1841-1847. [PMID: 24523073 DOI: 10.1002/smll.201302750] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 12/18/2013] [Indexed: 06/03/2023]
Abstract
It is highly desirable and challenging when the chemzyme can be not only simply duplicating and imitating the properties of natural enzymes, but also introducing additional new features for practical applications. Herein, we report a zinc-finger-protein like α-helical chiral metallo-supramolecular complex ([Fe2L3](4+)) functionalized graphene oxide (GO-COOH) as a peroxidase mimic. This artificial enzyme integrates the characteristics of both chiral metallo-supramolecular complex and GO-COOH, and shows excellent catalytic activity. More intriguingly, the novel chemzyme turn out to have enantioselectivity and near-infrared photothermal effect. To the best of our knowledge, this is the first example that the chemzyme has such new features. Based on these properties, we have demonstrated three examples for the applications of our designed enzyme: 1) Intracellular H2O2 detection in PC12 cells against Alzheimer's disease; 2) Discrimination between the chiral drug, Levodopa (L-dopa), the gold standard for treating Parkinson's disease and its enantiomer, D-dopa. This is important because L-dopa is the most effective drug at present used to combat Parkinson's disease while D-dopa is inactive and can even cause side effects, thus for drug efficacy it must be free of D-dopa in the formulation; 3) Remote control of enzyme cascade biocatalysis reactions using high transparent, bio-friendly near-infrared (NIR) light. NIR allows remote activation with relatively high spatial and temporal precision. Our work will provide new insights into design and construction of novel chemzyme with more advanced features beyond intrinsic enzyme property.
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Affiliation(s)
- Can Xu
- Laboratory of Chemical Biology, Division of Biological Inorganic Chemistry, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
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19
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Tang K, Luo J, Zhang P, Zhou C, Yi J. Kinetics study on reactive extraction of hydroxy-(2-methyl-phenyl)-acetic acid enantiomers from organic solution by HP-β-CD. Chem Eng Res Des 2013. [DOI: 10.1016/j.cherd.2012.08.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Advantages of electronic circular dichroism detection for the stereochemical analysis and characterization of drugs and natural products by liquid chromatography. J Chromatogr A 2012; 1269:69-81. [PMID: 23040981 DOI: 10.1016/j.chroma.2012.09.046] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 09/10/2012] [Accepted: 09/17/2012] [Indexed: 11/21/2022]
Abstract
The need for analytical methods for the determination of the enantiomeric excess of chiral compounds increased significantly in the last decades, and enantioselective separation techniques resulted particularly efficient to this purpose. Moreover, when detection systems based on chiroptical properties (optical rotation or circular dichroism) are employed in high-performance liquid chromatography (HPLC), the stereochemistry of a chiral analyte can be fully determined. Indeed, the coupling of HPLC with chiroptical detection systems allows the simultaneous assessment of the absolute configuration of stereoisomers and the evaluation of the enantiomeric/diastereomeric excess of samples. These features are particularly important in the study of drugs and natural products provided with biological activity, because the assignment of their absolute stereochemistry is essential to establish reliable structure-activity relationships. The following review aims to discuss the analytical advantages arising from the employment of electronic circular dichroism (ECD) detection systems in stereochemical analysis by HPLC upon chiral and non-chiral stationary phases and their use for the stereochemical characterization of chiral drugs and natural compounds. The different methods for the correlation between absolute stereochemistry and chiroptical properties are critically discussed. Relevant HPLC applications of ECD detection systems are then reported, and their analytical advantages are highlighted. For instance, the importance of the concentration-independent anisotropy factor (g-factor; g=Δɛ/ɛ) for the determination of the stereoisomeric composition of samples upon non-chiral stationary phases is underlined, since its sensitivity makes ECD detection very well suited for the enantioselective analysis of large libraries of chiral compounds in relatively short times.
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22
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Crystallization of chiral compounds: thermodynamical, structural and practical aspects. MENDELEEV COMMUNICATIONS 2012. [DOI: 10.1016/j.mencom.2012.06.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Tang K, Cai J, Zhang P. Equilibrium and Kinetics of Reactive Extraction of Ibuprofen Enantiomers from Organic Solution by Hydroxypropyl-β-cyclodextrin. Ind Eng Chem Res 2011. [DOI: 10.1021/ie202016g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kewen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, China
| | - Jian Cai
- College of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China
| | - Panliang Zhang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414006, China
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24
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Modeling multiple chemical equilibrium for reactive extraction of naproxen enantiomers with HP-β-CD as hydrophilic selector. Sci China Chem 2011. [DOI: 10.1007/s11426-011-4253-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Tang K, Zhang P, Pan C, Li H. Equilibrium studies on enantioselective extraction of oxybutynin enantiomers by hydrophilic β-cyclodextrin derivatives. AIChE J 2011. [DOI: 10.1002/aic.12513] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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26
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Higuchi A, Tamai M, Ko YA, Tagawa YI, Wu YH, Freeman BD, Bing JT, Chang Y, Ling QD. Polymeric Membranes for Chiral Separation of Pharmaceuticals and Chemicals. POLYM REV 2010. [DOI: 10.1080/15583721003698853] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Xie R, Chu LY, Deng JG. Membranes and membrane processes for chiral resolution. Chem Soc Rev 2008; 37:1243-63. [DOI: 10.1039/b713350b] [Citation(s) in RCA: 229] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Ferretti R, Gallinella B, La Torre F, Zanitti L. DIRECT RESOLUTION OF ISAMOLTANE (CGP 361A) AND ENCIPRAZINE (WY 48624) ENANTIOMERS, USING CHIRAL HIGH PERFORMANCE LIQUID CHROMATOGRAPHY. J LIQ CHROMATOGR R T 2006. [DOI: 10.1081/jlc-100101773] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- R. Ferretti
- a Istituto Superiore di Sanità , Laboratorio di Chimica delFarmaco, Viale Regina Elena 299, Rome , 00161 , Italy
| | - B. Gallinella
- a Istituto Superiore di Sanità , Laboratorio di Chimica delFarmaco, Viale Regina Elena 299, Rome , 00161 , Italy
| | - F. La Torre
- b Istituto Superiore di Sanità , Laboratorio di Chimica delFarmaco, Viale Regina Elena 299, Rome , 00161 , Italy
| | - L. Zanitti
- a Istituto Superiore di Sanità , Laboratorio di Chimica delFarmaco, Viale Regina Elena 299, Rome , 00161 , Italy
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Abstract
Until relatively recently the three-dimensional nature of drug molecules has been largely neglected, with approximately 25% of marketed drugs being mixtures of agents rather than single chemical entities. These mixtures are not combinations of drugs but mixtures of stereoisomers, generally racemates of synthetic chiral drugs. The individual enantiomers present in such mixtures frequently differ in both their pharmacodynamic and pharmacokinetic profiles as a result of stereochemical discrimination on interaction with chiral biological macromolecules (enzymes and receptors). The use of such mixtures may present problems if their adverse effects are associated with the less active stereoisomer or do not show stereoselectivity. In addition, interactions between enantiomers may occur such that the observed activity of the racemate is not simply the product of the effects of the individual enantiomers. Since the mid-1980s there has been an ongoing "racemate-versus-enantiomer" debate with the potential advantages of single-isomer products, including improved selectivity of action and potential increase in therapeutic index, being highlighted. As a result, regulatory authorities have issued guidelines for dealing with chiral molecules, and the number of single enantiomer agents presented for evaluation has increased. Racemic mixtures may still be developed but require justification such that the risk-benefit ratio may be assessed. In addition to new chemical entities, a number of "old" mixtures are being re-examined as potential single-isomer products, the chiral switches, with the potential for an improved therapeutic profile and possibly new indications. However, for the majority of agents currently marketed as mixtures, relatively little is known concerning the pharmacological or toxicological properties of the individual enantiomers.
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Affiliation(s)
- Andrew J Hutt
- Department of Pharmacy, King's College London, London, UK
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31
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Srinivas NR, Barbhaiya RH, Midha KK. Enantiomeric drug development: issues, considerations, and regulatory requirements. J Pharm Sci 2001; 90:1205-15. [PMID: 11745774 DOI: 10.1002/jps.1074] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- N R Srinivas
- Metabolism and Pharmacokinetics, Bristol-Myers Squibb Pharmaceutical Research Institute, Princeton, NJ 08543, USA
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Ferretti R, Gallinella B, La Torre F, Turchetto L. Validated chiral high-performance liquid chromatographic method for the determination of trans-(-)-paroxetine and its enantiomer in bulk and pharmaceutical formulations. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1998; 710:157-64. [PMID: 9686883 DOI: 10.1016/s0378-4347(98)00098-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A stereospecific high-performance liquid chromatography method for the determination of trans-(-)-paroxetine and its enantiomer in bulk raw material and pharmaceutical formulations was developed and validated. The enantiomeric separation was achieved, without any derivatization, on a carbamate derivative-based column (Chiralpak AD). The effect of the organic modifiers, 2-propanol and ethanol, in the mobile phases was optimised to obtain enantiomeric separation. Limits of detection and quantitation of 2 and 6 ng, respectively, were obtained for both of the enantiomers. The linearity was established in the range of 5-41 microg for trans-(-)-paroxetine and in the range of 10-160 ng for trans-(+)-paroxetine. The accuracy of the method was 102.3% (mean value) for trans-(-)-paroxetine and 99.9% (mean value) for trans-(+)-paroxetine. For the precision (repeatability), a relative standard deviation value of 1.5% (mean value) for trans-(-)-paroxetine and of 2.1% (mean value) for trans-(+)-paroxetine was found. The method is capable of determining a minimum limit of 0.2% of trans-(+)-isomer in commercial samples.
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Affiliation(s)
- R Ferretti
- Istituto Superiore di Sanità, Laboratorio di Chimica del Farmaco, Rome, Italy
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Ferretti R, Gallinella B, La Torre F, Turchetto L. Liquid chromatographic separation of the enantiomers of becliconazole and its potential impurities. J Chromatogr A 1997. [DOI: 10.1016/s0021-9673(96)01035-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Direct high-performance liquid chromatography resolution on a chiral column of dexfenfluramine and its impurities, in bulk raw drug and pharmaceutical formulations. J Chromatogr A 1996. [DOI: 10.1016/0021-9673(95)01307-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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36
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Wikberg T, Korkolainen T, Karlsson M. Enantiomeric bioanalysis of simendan and levosimendan by chiral high-performance liquid chromatography. Chirality 1996; 8:511-517. [PMID: 8970749 DOI: 10.1002/(sici)1520-636x(1996)8:7<511::aid-chir8>3.0.co;2-d] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
rac-Simendan, (+/-)-(R,S)-[[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)-phenyl ] hydrazono]propanedinitrile, and the levorotatory enantiomer levosimendan, are drug candidates intended for the treatment of congestive heart failure. An enantiospecific high-performance liquid chromatographic (HPLC) method suitable for determination of the ratio of the enantiomer concentrations in blood plasma samples was developed. Direct resolution of the enantiomers was achieved by using a chiral beta-cyclodextrin stationary phase in reversed phase mode. With an eluent containing 24-33% of methanol in a 0.5% (v/v) triethylammonium acetate buffer, pH 6.0, and a flow rate of 1 ml/min, a resolution (1.2-1.6) adequate for the determinations was achieved. By using UV detection, the relative concentration of the enantiomers in plasma was assessed down to 10 ng/ml. For the racemate, the results indicated a slightly enantioselective disposition and plasma protein binding in rat, dog, and man. The pure enantiomer, levosimendan, was found not to isomerize in vivo.
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Affiliation(s)
- T Wikberg
- Orion-Farmos, Orion Research, Espoo, Finland
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Direct high-performance liquid chromatography resolution on chiral columns of tiaprofenic acid and related compounds in bulk powder and pharmaceutical formulations. J Chromatogr A 1995. [DOI: 10.1016/0021-9673(94)00027-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Van Overbeke A, Baeyens W, Van den Bossche W, Dewaele C. Separation of 2-arylpropionic acids on a cellulose based chiral stationary phase by RP-HPLC. J Pharm Biomed Anal 1994; 12:901-9. [PMID: 7981319 DOI: 10.1016/0731-7085(94)e0019-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The enantiomers of eight 2-arylpropionic acids, a group of chiral non steroidal antiinflammatory drugs, were resolved as their benzylamide derivatives on a high-performance liquid chromatographic chiral stationary phase consisting of a covalently bound tris (4-methylbenzoate) cellulose layer on silica gel. The column was used under reversed-phase conditions using methanol as the main mobile phase component, with a perchlorate buffer pH 2.0. A compromise for derivatization with a water soluble carbodiimide and 1-hydroxybenzotriazole of a group of eight analytes was obtained. The derivatives were identified by IR- and MS-spectroscopy.
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Affiliation(s)
- A Van Overbeke
- Laboratory of Drug Analysis, Faculty of Pharmaceutical Sciences, University of Ghent, Belgium
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Cortes HJ, Nicholson LW. Chiral separations using packed capillary liquid chromatography. ACTA ACUST UNITED AC 1994. [DOI: 10.1002/mcs.1220060310] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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40
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Abstract
Computer simulation was used to test the effects of pulsatile oral input on the stereoselectivity in the area under the blood concentration-time curves (AUCs) of the enantiomers of racemic drugs. The effects of input rate determinants, namely, dose, dosage interval, and formulation on the stereoselectivity were investigated under both steady-state and nonsteady-state conditions. Simulations were carried out for drugs undergoing Michaelis-Menten hepatic metabolism with different enantiomeric maximum velocity (Vmax) or constant (Km) values. With pulsatile input, the enantiomeric AUC ratios of both types of drugs were dependent on all the determinants of input rate. However, in most cases, the direction of input rate-dependent changes in the enantiomeric AUC ratios for drugs with different enantiomeric Vmax was opposite of that for drugs with different enantiomeric Km. The direction and magnitude of changes in the enantiomeric AUC ratios were also dependent on the selected dose, dosage interval, and formulation. Further, different conclusions could be reached based on the nonsteady-state and steady-state data. Additional simulations were then performed to test the effects of input rate-dependent stereoselective pharmacokinetics on the bioequivalence of chiral drugs with nonlinear metabolism. These simulations suggested that bioequivalence studies based on the racemic drug measurement may result in erroneous conclusions for the individual enantiomers. The results of this study may be used as a tool for the design of experiments to test the input rate dependence of stereoselective pharmacokinetics and bioequivalence of racemic drugs in animals and humans.
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Affiliation(s)
- R Mehvar
- College of Pharmacy and Health Sciences, Drake University, Des Moines, Iowa
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Muller N, Lapicque F, Drelon E, Gillet P, Monot C, Poletto B, Netter P. Direct high-performance liquid chromatographic resolution of the enantiomers of tiaprofenic acid using immobilized human serum albumin. JOURNAL OF CHROMATOGRAPHY 1993; 616:261-70. [PMID: 7690766 DOI: 10.1016/0378-4347(93)80394-j] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Resolution of racemic tiaprofenic acid (TA) has been performed using immobilized human serum albumin as the stationary phase. The eluent was phosphate buffer-acetonitrile-n-octanoic acid (90:10:0.015, v/v). Detection was achieved at 305 nm. The pharmacokinetics of the enantiomers were studied following oral administration into humans and after subcutaneous injection in rats. Plasma concentrations of (+)-TA were much greater than those of (-)-TA. For the rat, the pharmacokinetic parameters between (-)-TA and (+)-TA were all statistically different (p < 0.005).
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Affiliation(s)
- N Muller
- URA CNRS 1288, Faculté de Médecine, Vandoeuvre les Nancy, France
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Asymmetric synthesis of both enantiomers of α-(4-fluorophenyl)-4-(2-pyrimidinyl)-1-piperazinebutanol: Potential antipsychotic agents. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/s0957-4166(00)82208-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Elsabee M, Prankerd R. Solid-state properties of drugs. III. Differential scanning calorimetry of chiral drug mixtures existing as racemic solid solutions, racemic mixtures or racemic compounds. Int J Pharm 1992. [DOI: 10.1016/0378-5173(92)90200-l] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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