1
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Pashenko AE, Gaidai A, Hryhoriev N, Volovenko O, Levandovskiy I, Maksymenko O, Volochnyuk DM, Ryabukhin SV. Scale-Up Synthesis of 1-Methyladamantane and Its Functionalization as a Key Point for Promising Antiviral Agents. Org Process Res Dev 2023. [DOI: 10.1021/acs.oprd.2c00305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Affiliation(s)
- Alexander E. Pashenko
- Enamine Ltd., 78 Chervonotkatska Street, 02660 Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska Street, 01033 Kyiv, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska Street, 02660 Kyiv, Ukraine
| | - Alexandr Gaidai
- Enamine Ltd., 78 Chervonotkatska Street, 02660 Kyiv, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska Street, 02660 Kyiv, Ukraine
- National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 37 Peremohy Avenue, 03056 Kyiv, Ukraine
| | - Nazar Hryhoriev
- Enamine Ltd., 78 Chervonotkatska Street, 02660 Kyiv, Ukraine
- National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 37 Peremohy Avenue, 03056 Kyiv, Ukraine
| | | | - Igor Levandovskiy
- National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 37 Peremohy Avenue, 03056 Kyiv, Ukraine
| | - Olga Maksymenko
- Enamine Ltd., 78 Chervonotkatska Street, 02660 Kyiv, Ukraine
| | - Dmitriy M. Volochnyuk
- Enamine Ltd., 78 Chervonotkatska Street, 02660 Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska Street, 01033 Kyiv, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska Street, 02660 Kyiv, Ukraine
| | - Sergey V. Ryabukhin
- Enamine Ltd., 78 Chervonotkatska Street, 02660 Kyiv, Ukraine
- Taras Shevchenko National University of Kyiv, 60 Volodymyrska Street, 01033 Kyiv, Ukraine
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska Street, 02660 Kyiv, Ukraine
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2
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Gambacorta N, Özdemir Z, Doğan İS, Ciriaco F, Zenni YN, Karakurt A, Saraç S, Nicolotti O. Integrated experimental and theoretical approaches to investigate the molecular mechanisms of the enantioseparation of chiral anticonvulsant and antifungal compounds. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Tai HC, Lin Z, Fabiano A, Zhou Y, Saurer EM, Ye YK, He BL. Evaluation of Chiral Normal-Phase Liquid Chromatography as a Secondary Tier in Pharmaceutical Chiral Screening Strategy. J Chromatogr A 2022; 1672:463053. [DOI: 10.1016/j.chroma.2022.463053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 10/18/2022]
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4
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Ali I, Raja R, Alam SD, Shirsath V, K. Jain A, Locatelli M, David V. A comparison of chiral separations by supercritical fluid chromatography and high-performance liquid chromatography. J LIQ CHROMATOGR R T 2021. [DOI: 10.1080/10826076.2021.1979037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Imran Ali
- Department of Chemistry, Jamia Millia Islamia, New Delhi, India
| | - Rupak Raja
- Department of Chemistry, School of Basic and Applied Sciences, Galgotias University, Greater Noida, India
- Jubilant Biosys Limited, Noida, India
| | | | | | - Arvind K. Jain
- Department of Chemistry, School of Basic and Applied Sciences, Galgotias University, Greater Noida, India
| | - Marcello Locatelli
- Department of Pharmacy, Analytical and Bioanalytical Chemistry, University “G. d’Annunzio” of Chieti-Pescara, Chieti, Italy
| | - Victor David
- Department of Analytical Chemistry, University of Bucharest, Romania
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5
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Lin Z, Tai HC, Zhu G, Fabiano A, Borges-Muñoz A, Ye YK, He BL. Evaluation of a polysaccharide-based chiral reversed-phase liquid chromatography screen strategy in pharmaceutical analysis. J Chromatogr A 2021; 1645:462085. [PMID: 33848654 DOI: 10.1016/j.chroma.2021.462085] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/16/2021] [Accepted: 03/19/2021] [Indexed: 11/20/2022]
Abstract
Chirality control plays a critical role in developing stereoisomeric drugs. Due to the complexity and lack of predictability in chiral separations, column screening remains the gold standard to initiate chiral method development for active pharmaceutical ingredients (APIs) and synthetic intermediates. Chiral reversed-phase (RP) liquid chromatography (LC) has gained favor over other modes due to its versatility and compatibility in analyzing a wide range of chiral compounds in various matrices. Herein, we established a tier-based chiral RPLC screen strategy by constructing and analyzing a database of 101 chiral screens with a total of 3,401 entries (unique LC runs) for proprietary APIs or intermediates at Bristol Myers Squibb. Up to 17 polysaccharide-based chiral stationary phases (CSPs) and four mobile phases (MPs) have been screened with gradient elution. A selection of ten CSPs with two MPs was found sufficient to achieve successful separation for 82% of the total screens. Two RPLC screen tiers (Tier 1: AZ, OD, ID, and IG) and (Tier 2: AY, OJ, OZ, IA, IC, and IH) were proposed along with two MPs (acidic and neutral) to target ~70% hit rate for Tier 1, and ~80% for the combined set. We also implemented a user-friendly workflow to enable walk-up chiral RPLC screening with automated reports and system suitability tests.
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Affiliation(s)
- Ziqing Lin
- Bristol Myers Squibb Company, Chemical Process Development, 1 Squibb Drive, New Brunswick, NJ 08903, USA
| | - Hua-Chia Tai
- Bristol Myers Squibb Company, Chemical Process Development, 1 Squibb Drive, New Brunswick, NJ 08903, USA
| | - Guanghui Zhu
- Bristol Myers Squibb Company, Chemical Process Development, 1 Squibb Drive, New Brunswick, NJ 08903, USA
| | - Abigail Fabiano
- Chemical & Biochemical Engineering, Rutgers University, 98 Brett Rd, Piscataway, NJ 08854, USA
| | - Amaris Borges-Muñoz
- Bristol Myers Squibb Company, Chemical Process Development, 1 Squibb Drive, New Brunswick, NJ 08903, USA
| | - Yun K Ye
- Bristol Myers Squibb Company, Chemical Process Development, 1 Squibb Drive, New Brunswick, NJ 08903, USA
| | - Brian Lingfeng He
- Bristol Myers Squibb Company, Chemical Process Development, 1 Squibb Drive, New Brunswick, NJ 08903, USA.
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6
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Chiral chromatography method screening strategies: Past, present and future. J Chromatogr A 2021; 1638:461878. [PMID: 33477025 DOI: 10.1016/j.chroma.2021.461878] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/31/2020] [Accepted: 01/02/2021] [Indexed: 11/23/2022]
Abstract
Method screening is an integral part of chromatographic method development for the separation of racemates. Due to the highly complex retention mechanism of a chiral stationary-phase, it is often difficult, if not impossible, to device predefined method-development steps that can be successfully applied to a wide group of molecules. The standard approach is to evaluate or screen a series of stationary and mobile-phase combinations to increase the chances of detecting a suitable separation condition. Such a process is often the rate-limiting step for high-throughput analyses and purification workflows. To address the problem, several solutions and strategies have been proposed over the years for reduction of net method-screening time. Some of the strategies have been adopted in practice while others remained confined in the literature. The main objective of this review is to revisit, critically discuss and compile the solutions published over the last two decades. We expect that making the diverse set of solutions available in a single document will help assessing the adequacy of existing screening protocols in laboratories conducting chiral separation.
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7
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Defining a system suitability limit to decide on column deterioration and to facilitate column transfers in chiral supercritical fluid chromatography. Anal Bioanal Chem 2019; 412:6221-6230. [PMID: 31729584 DOI: 10.1007/s00216-019-02173-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/17/2019] [Accepted: 09/24/2019] [Indexed: 10/25/2022]
Abstract
The separation of enantiomers is an important requirement during the entire drug life cycle in the pharmaceutical industry. High-performance liquid chromatography and supercritical fluid chromatography (SFC) are the main chromatographic techniques used to separate enantiomers. Since chiral stationary phases are often extensively used once a method has been developed, columns will age and must be replaced after a certain period. However, no practical guidelines exist to determine when a column is deteriorated or to decide whether a transfer to another column (with the same chiral selector) is successful. In this study, a system suitability limit for resolution was defined, based on an intermediate (time-different) precision study in SFC on four immobilized polysaccharide-based columns that only differed in manufacturer or particle size. This system suitability limit could be used to decide on column deterioration or as a requirement to evaluate whether a separation transfer was successful. Some method adaptations may be necessary to obtain successful transfers. An approach was proposed, which helped the analyst to make successful transfers. Graphical abstract.
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8
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Karakka Kal AK, Karatt TK, Sayed R, Philip M, Meissir S, Nalakath J. Separation of ephedrine and pseudoephedrine enantiomers using a polysaccharide-based chiral column: A normal phase liquid chromatography-high-resolution mass spectrometry approach. Chirality 2019; 31:568-574. [PMID: 31250489 DOI: 10.1002/chir.23104] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/16/2019] [Accepted: 05/30/2019] [Indexed: 12/21/2022]
Abstract
Chiral considerations are found to be very much relevant in various aspects of forensic toxicology and pharmacology. In forensics, it has become increasingly important to identify the chirality of doping agents to avoid legal arguments and challenges to the analytical findings. The scope of this study was to develop an liquid chromatography-mass spectrometry (LCMS) method for the enantiomeric separation of typical illicit drugs such as ephedrines (ie, 1S,2R(+)-ephedrine and 1R,2S(-)-ephedrine) and pseudoephedrine (ie, R,R(-)-pseudoephedrine and S,S(+)-pseudoephedrine) by using normal phase chiral liquid chromatography-high-resolution mass spectrometry technique. Results show that the Lux i-amylose-1 stationary phase has very broad and balancing-enantio-recognition properties towards ephedrine analogues, and this immobilized chiral stationary phase may offer a powerful tool for enantio-separation of different types of pharmaceuticals in the normal phase mode. The type of mobile phase and organic modifier used appear to have dramatic influences on separation quality. Since the developed method was able to detect and separate the enantiomers at very low levels (in pico grams), this method opens easy access for the unambiguous identification of these illicit drugs and can be used for the routine screening of the biological samples in the antidoping laboratories.
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Affiliation(s)
| | - Tajudheen K Karatt
- Equine Forensic Unit, Central Veterinary Research Laboratory, Dubai, United Arab Emirates
| | - Ramy Sayed
- Equine Forensic Unit, Central Veterinary Research Laboratory, Dubai, United Arab Emirates
| | - Moses Philip
- Equine Forensic Unit, Central Veterinary Research Laboratory, Dubai, United Arab Emirates
| | - Samir Meissir
- Equine Forensic Unit, Central Veterinary Research Laboratory, Dubai, United Arab Emirates
| | - Jahfar Nalakath
- Equine Forensic Unit, Central Veterinary Research Laboratory, Dubai, United Arab Emirates
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9
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Use of polysaccharide-based chiral columns: enantiomeric separation of seven pairs of abused drugs by high-performance liquid chromatography–mass spectrometry. Forensic Toxicol 2018. [DOI: 10.1007/s11419-018-0453-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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10
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Joshi N, Dhamarlapati B, Pillai A, Paulose J, Tan J, Blue LE, Tedrow J, Farrell B. Separation and quantitation of eight isomers in a molecule with three stereogenic centers by normal phase liquid chromatography. J Chromatogr A 2018; 1538:108-111. [DOI: 10.1016/j.chroma.2018.01.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 01/12/2018] [Accepted: 01/15/2018] [Indexed: 11/29/2022]
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11
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Zhang P, Yu Q, He X, Qian K, Xiao W, Xu Z, Li T, He L. Enantiomeric separation of type I and type II pyrethroid insecticides with different chiral stationary phases by reversed-phase high-performance liquid chromatography. Chirality 2017; 30:420-431. [PMID: 29274232 DOI: 10.1002/chir.22801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 10/24/2017] [Accepted: 11/22/2017] [Indexed: 01/07/2023]
Abstract
The enantiomeric separation of type I (bifenthrin, BF) and type II (lambda-cyhalothrin, LCT) pyrethroid insecticides on Lux Cellulose-1, Lux Cellulose-3, and Chiralpak IC chiral columns was investigated by reversed-phase high-performance liquid chromatography. Methanol/water or acetonitrile/water was used as mobile phase at a flow rate of 0.8 mL/min. The effects of chiral stationary phase, mobile phase composition, column temperature, and thermodynamic parameters on enantiomer separation were carefully studied. Bifenthrin got a partial separation on Lux Cellulose-1 column and baseline separation on Lux Cellulose-3 column, while LCT enantiomers could be completely separated on both Lux Cellulose-1 and Lux Cellulose-3 columns. Chiralpak IC provided no separation ability for both BF and LCT. Retention factor (k) and selectivity factor (α) decreased with the column temperature increasing from 10°C to 40°C for both BF and LCT enantiomers. Thermodynamic parameters including ∆H and ∆S were also calculated, and the maximum Rs were not always obtained at lowest temperature. Furthermore, the quantitative analysis methods for BF and LCT enantiomers in soil and water were also established. Such results provide a new approach for pyrethroid separation under reversed-phase condition and contribute to environmental risk assessment of pyrethroids at enantiomer level.
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Affiliation(s)
- Ping Zhang
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Qian Yu
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Xiulong He
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Kun Qian
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Wei Xiao
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Zhifeng Xu
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Tian Li
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Lin He
- College of Plant Protection, Southwest University, Chongqing, China.,Academy of Agricultural Sciences, Southwest University, Chongqing, China
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12
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Mattrey FT, Makarov AA, Regalado EL, Bernardoni F, Figus M, Hicks MB, Zheng J, Wang L, Schafer W, Antonucci V, Hamilton SE, Zawatzky K, Welch CJ. Current challenges and future prospects in chromatographic method development for pharmaceutical research. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.07.021] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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13
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Enantiomeric Separation of Tramadol and Its Metabolites: Method Validation and Application to Environmental Samples. Symmetry (Basel) 2017. [DOI: 10.3390/sym9090170] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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14
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Quinine bonded to superficially porous particles for high-efficiency and ultrafast liquid and supercritical fluid chromatography. Anal Chim Acta 2017; 963:164-174. [DOI: 10.1016/j.aca.2017.02.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 02/02/2017] [Accepted: 02/10/2017] [Indexed: 11/20/2022]
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15
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Yang B, Zhou J, Wang Y, Tang J, Tang W. Enantioseparation of isoxazolines with functionalized perphenylcarbamate cyclodextrin clicked chiral stationary phases in HPLC. Electrophoresis 2017; 38:1939-1947. [PMID: 28176345 DOI: 10.1002/elps.201600491] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 02/01/2017] [Accepted: 02/01/2017] [Indexed: 11/10/2022]
Abstract
The enantioseparations of 12 isoxazoline racemates were explored with four perphenylcarbamate cyclodextrin (CD) clicked chiral stationary phases (CSPs) in high performance liquid chromatography (HPLC). The results demonstrated that the functionalities on phenylcarbamate moiety greatly determined the chiral separation ability of CD clicked CSPs. Among of them, per(3-chloro-4-methylphenylcarbamate) CD clicked CSP (CCC3M4-CSP) exhibited the best enantioseparation ability, affording 4ClPh-OPr with a chiral resolution over 20 in ternary eluent mobile phases. The optimization of CSPs structures provided wide platform for their chiral separations towards multi-mode HPLC.
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Affiliation(s)
- Bo Yang
- Key Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing, P. R. China
| | - Jie Zhou
- Key Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing, P. R. China
| | - Yong Wang
- Department of Chemistry, School of Science, Tianjin University, Tianjin, P. R. China
| | - Jian Tang
- Key Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing, P. R. China
| | - Weihua Tang
- Key Laboratory of Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing, P. R. China
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16
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Tang J, Pang L, Zhou J, Zhang S, Tang W. Per(3-chloro-4-methyl)phenylcarbamate cyclodextrin clicked stationary phase for chiral separation in multiple modes high-performance liquid chromatography. Anal Chim Acta 2016; 946:96-103. [DOI: 10.1016/j.aca.2016.10.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 09/19/2016] [Accepted: 10/09/2016] [Indexed: 10/20/2022]
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17
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Zhuang J, Kumar S, Rustum A. Development and Validation of a Normal Phase Chiral HPLC Method for Analysis of Afoxolaner Using a Chiralpak ®AD-3 Column. J Chromatogr Sci 2016; 54:1813-1819. [DOI: 10.1093/chromsci/bmw162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 08/02/2016] [Accepted: 09/12/2016] [Indexed: 11/12/2022]
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18
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In-line coupling of an achiral-chiral column to investigate the enantioselective in vitro metabolism of the pesticide Fenamiphos by human liver microsomes. J Chromatogr A 2016; 1467:326-334. [DOI: 10.1016/j.chroma.2016.08.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 08/12/2016] [Accepted: 08/16/2016] [Indexed: 11/20/2022]
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19
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Huang T, Song P, Jiang L, Peng Y, Feng S, Wang J. Electrospinning of magnetic cellulose tris-(4-methylbenzoate) microparticles for enantioselective adsorption of racemic drug. Electrophoresis 2016; 37:2050-3. [DOI: 10.1002/elps.201600095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/06/2016] [Accepted: 04/14/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Tengjun Huang
- Key Laboratory of Oil Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering; Xinjiang University; Urumqi P. R. China
| | - Peipei Song
- Key Laboratory of Oil Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering; Xinjiang University; Urumqi P. R. China
| | - Li Jiang
- Key Laboratory of Oil Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering; Xinjiang University; Urumqi P. R. China
| | - Yan Peng
- Key Laboratory of Oil Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering; Xinjiang University; Urumqi P. R. China
| | - Shun Feng
- Key Laboratory of Oil Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering; Xinjiang University; Urumqi P. R. China
| | - Jide Wang
- Key Laboratory of Oil Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering; Xinjiang University; Urumqi P. R. China
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20
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Supercritical fluid chromatography in pharmaceutical analysis. J Pharm Biomed Anal 2015; 113:56-71. [DOI: 10.1016/j.jpba.2015.03.007] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/03/2015] [Accepted: 03/05/2015] [Indexed: 12/21/2022]
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21
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Tang J, Pang L, Zhou J, Tang W. Enantioseparation tuned by solvent polarity on a β-cyclodextrin clicked chiral stationary phase. J Sep Sci 2015; 38:3137-3144. [DOI: 10.1002/jssc.201500630] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Revised: 06/19/2015] [Accepted: 06/21/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Jian Tang
- College of Chemical Engineering; Nanjing University of Science and Technology; Nanjing China
| | - Limin Pang
- College of Chemical Engineering; Nanjing University of Science and Technology; Nanjing China
| | - Jie Zhou
- College of Chemical Engineering; Nanjing University of Science and Technology; Nanjing China
| | - Weihua Tang
- College of Chemical Engineering; Nanjing University of Science and Technology; Nanjing China
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22
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Quality by design in the chiral separation strategy for the determination of enantiomeric impurities: development of a capillary electrophoresis method based on dual cyclodextrin systems for the analysis of levosulpiride. J Chromatogr A 2014; 1380:177-85. [PMID: 25582483 DOI: 10.1016/j.chroma.2014.12.065] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 12/18/2014] [Accepted: 12/21/2014] [Indexed: 11/21/2022]
Abstract
Quality by design (QbD) concepts, in accordance with International Conference on Harmonisation Pharmaceutical Development guideline Q8(R2), represent an innovative strategy for the development of analytical methods. In this paper QbD principles have been comprehensively applied in the set-up of a capillary electrophoresis method aimed to quantify enantiomeric impurities. The test compound was the chiral drug substance levosulpiride (S-SUL) and the developed method was intended to be used for routine analysis of the pharmaceutical product. The target of analytical QbD approach is to establish a design space (DS) of critical process parameters (CPPs) where the critical quality attributes (CQAs) of the method have been assured to fulfil the desired requirements with a selected probability. QbD can improve the understanding of the enantioseparation process, including both the electrophoretic behavior of enantiomers and their separation, therefore enabling its control. The CQAs were represented by enantioresolution and analysis time. The scouting phase made it possible to select a separation system made by sulfated-β-cyclodextrin and a neutral cyclodextrin, operating in reverse polarity mode. The type of neutral cyclodextrin was included among other CPPs, both instrumental and related to background electrolyte composition, which were evaluated in a screening phase by an asymmetric screening matrix. Response surface methodology was carried out by a Doehlert design and allowed the contour plots to be drawn, highlighting significant interactions between some of the CPPs. DS was defined by applying Monte-Carlo simulations, and corresponded to the following intervals: sulfated-β-cyclodextrin concentration, 9-12 mM; methyl-β-cyclodextrin concentration, 29-38 mM; Britton-Robinson buffer pH, 3.24-3.50; voltage, 12-14 kV. Robustness of the method was examined by a Plackett-Burman matrix and the obtained results, together with system repeatability data, led to define a method control strategy. The method was validated and was finally applied to determine the enantiomeric purity of S-SUL in pharmaceutical dosage forms.
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23
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Insights into chiral recognition mechanism in supercritical fluid chromatography III. Non-halogenated polysaccharide stationary phases. J Chromatogr A 2014; 1363:278-93. [DOI: 10.1016/j.chroma.2014.06.084] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 06/18/2014] [Accepted: 06/24/2014] [Indexed: 11/19/2022]
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24
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Enantioseparation of chiral pharmaceuticals in biomedical and environmental analyses by liquid chromatography: An overview. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 968:8-21. [DOI: 10.1016/j.jchromb.2014.02.049] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 02/23/2014] [Accepted: 02/28/2014] [Indexed: 11/23/2022]
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25
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Albals D, Hendrickx A, Clincke L, Chankvetadze B, Heyden YV, Mangelings D. A chiral separation strategy for acidic drugs in capillary electrochromatography using both chlorinated and nonchlorinated polysaccharide-based selectors. Electrophoresis 2014; 35:2807-18. [DOI: 10.1002/elps.201400169] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 05/22/2014] [Accepted: 06/16/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Dima Albals
- Analytical Chemistry and Pharmaceutical Technology; Center for Pharmaceutical Research; Vrije Universiteit Brussel-VUB; Brussels Belgium
| | - Ans Hendrickx
- Analytical Chemistry and Pharmaceutical Technology; Center for Pharmaceutical Research; Vrije Universiteit Brussel-VUB; Brussels Belgium
| | - Lies Clincke
- Analytical Chemistry and Pharmaceutical Technology; Center for Pharmaceutical Research; Vrije Universiteit Brussel-VUB; Brussels Belgium
| | - Bezhan Chankvetadze
- School of Exact and Natural Sciences; Institute of Physical and Analytical Chemistry; Tbilisi State University; Tbilisi Georgia
| | - Yvan Vander Heyden
- Analytical Chemistry and Pharmaceutical Technology; Center for Pharmaceutical Research; Vrije Universiteit Brussel-VUB; Brussels Belgium
| | - Debby Mangelings
- Analytical Chemistry and Pharmaceutical Technology; Center for Pharmaceutical Research; Vrije Universiteit Brussel-VUB; Brussels Belgium
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26
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Mangelings D, Vander Heyden Y, Vespalec R. Chiral separability of boron cluster species studied by screening approaches utilizing polysaccharide-based chiral stationary phases. Biomed Chromatogr 2014; 28:694-707. [DOI: 10.1002/bmc.3091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 10/22/2013] [Accepted: 10/25/2013] [Indexed: 11/08/2022]
Affiliation(s)
- D. Mangelings
- Department of Analytical Chemistry and Pharmaceutical Technology; Vrije Universiteit Brussel, Center for Pharmaceutical Research; Laarbeeklaan 103 B-1090 Brussels Belgium
| | - Y. Vander Heyden
- Department of Analytical Chemistry and Pharmaceutical Technology; Vrije Universiteit Brussel, Center for Pharmaceutical Research; Laarbeeklaan 103 B-1090 Brussels Belgium
| | - R. Vespalec
- Institute of Biophysics; Academy of Sciences of the Czech Republic; v.v.i., Královopolská 135 612 65 Brno Czech Republic
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27
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Hendrickx A, De Klerck K, Mangelings D, Clincke L, Heyden YV. Three versus five micrometer chlorinated polysaccharide-based packings in chiral capillary electrochromatography: performance evaluation. Biomed Chromatogr 2013; 28:182-91. [DOI: 10.1002/bmc.3072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 09/17/2013] [Accepted: 09/20/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Ans Hendrickx
- Analytical Chemistry and Pharmaceutical Technology, Center for Pharmaceutical Research; Vrije Universiteit Brussel-VUB; Laarbeeklaan 103 1090 Brussels Belgium
| | - Katrijn De Klerck
- Analytical Chemistry and Pharmaceutical Technology, Center for Pharmaceutical Research; Vrije Universiteit Brussel-VUB; Laarbeeklaan 103 1090 Brussels Belgium
| | - Debby Mangelings
- Analytical Chemistry and Pharmaceutical Technology, Center for Pharmaceutical Research; Vrije Universiteit Brussel-VUB; Laarbeeklaan 103 1090 Brussels Belgium
| | - Lies Clincke
- Analytical Chemistry and Pharmaceutical Technology, Center for Pharmaceutical Research; Vrije Universiteit Brussel-VUB; Laarbeeklaan 103 1090 Brussels Belgium
| | - Yvan Vander Heyden
- Analytical Chemistry and Pharmaceutical Technology, Center for Pharmaceutical Research; Vrije Universiteit Brussel-VUB; Laarbeeklaan 103 1090 Brussels Belgium
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28
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Chen K, Lynen F, Hitzel L, Hanna-Brown M, Szucs R, Sandra P. A New Strategy for Fast Chiral Screening by Combining HPLC-DAD with a Multivariate Curve Resolution–Alternating Least Squares Algorithm. Chromatographia 2013. [DOI: 10.1007/s10337-013-2520-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Younes AA, Ates H, Mangelings D, Vander Heyden Y. A separation strategy combining three HPLC modes and polysaccharide-based chiral stationary phases. J Pharm Biomed Anal 2013; 75:74-85. [DOI: 10.1016/j.jpba.2012.11.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 10/23/2012] [Accepted: 11/05/2012] [Indexed: 10/27/2022]
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30
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Separation of piracetam derivatives on polysaccharide-based chiral stationary phases. J Chromatogr A 2013; 1281:160-5. [DOI: 10.1016/j.chroma.2013.01.057] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 01/11/2013] [Accepted: 01/14/2013] [Indexed: 11/23/2022]
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31
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Fundamental study of enantioselective HPLC separation of tapentadol enantiomers using cellulose-based chiral stationary phase in normal phase mode. J Pharm Biomed Anal 2013; 74:111-6. [DOI: 10.1016/j.jpba.2012.10.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 10/11/2012] [Accepted: 10/16/2012] [Indexed: 11/17/2022]
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32
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Ribeiro AR, Afonso CM, Castro PML, Tiritan ME. Enantioselective biodegradation of pharmaceuticals, alprenolol and propranolol, by an activated sludge inoculum. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2013; 87:108-14. [PMID: 23131609 DOI: 10.1016/j.ecoenv.2012.10.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 10/10/2012] [Accepted: 10/11/2012] [Indexed: 05/22/2023]
Abstract
Biodegradation of chiral pharmaceuticals in the environment can be enantioselective. Thus quantification of enantiomeric fractions during the biodegradation process is crucial for assessing the fate of chiral pollutants. This work presents the biodegradation of alprenolol and propranolol using an activated sludge inoculum, monitored by a validated enantioselective HPLC method with fluorescence detection. The enantioseparation was optimized using a vancomycin-based chiral stationary phase under polar ionic mode. The method was validated using a minimal salts medium inoculated with activated sludge as matrix. The method was selective and linear in the range of 10-800 ng/ml, with a R²>0.99. The accuracy ranged from 85.0 percent to 103 percent, the recovery ranged from 79.9 percent to 103 percent, and the precision measured by the relative standard deviation (RSD) was <7.18 percent for intra-batch and <5.39 percent for inter-batch assays. The limits of quantification and detection for all enantiomers were 10 ng/ml and 2.5 ng/ml, respectively. The method was successfully applied to follow the biodegradation of the target pharmaceuticals using an activated sludge inoculum during a fifteen days assay. The results indicated slightly higher biodegradation rates for the S-enantiomeric forms of both beta-blockers. The presence of another carbon source maintained the enantioselective degradation pattern while enhancing biodegradation extent up to fourteen percent.
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Affiliation(s)
- Ana R Ribeiro
- Centro de Investigação em Ciências da Saúde do Instituto Superior de Ciências da Saúde-Norte-CICS-ISCS-N, CESPU, R. Central de Gandra 1317, 4585-116 Gandra PRD, Paredes, Portugal
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33
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Webster GK, Szczerba TJ. Screening of Pirkle-type chiral stationary phases for HPLC enantioseparations. Methods Mol Biol 2013; 970:177-190. [PMID: 23283777 DOI: 10.1007/978-1-62703-263-6_10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The majority of enantiomeric separations for purity analysis and quality control continue to be performed by normal-phase liquid chromatography and supercritical fluid chromatography. In this chapter, representative chromatographic screening procedures for the enantioseparations using Pirkle-type stationary phases are presented. As Pirkle-type phases are commonly applied to the preparative chromatographic isolation of enantiomers, volatile modifiers are used in this screen in order to be subsequently compatible with the techniques used to recover analytes from preparative scale isolations. The Stage 1 screen presented here is used initially for screening chiral entities. The gradients use cyclohexane and ethanol both with and without chromatographic modifiers. The Stage 2 screen is used for more challenging to resolve compounds that do not exhibit resolution using the Stage 1 screening procedure.
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34
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Chiral separations in reversed-phase liquid chromatography: Evaluation of several polysaccharide-based chiral stationary phases for a separation strategy update. J Chromatogr A 2012; 1269:154-67. [DOI: 10.1016/j.chroma.2012.07.070] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 07/18/2012] [Accepted: 07/20/2012] [Indexed: 11/24/2022]
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35
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Ates H, Desmedt B, Heyden YV. Test-set reduction in the screening step definition of a chiral separation strategy in polar organic solvents chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 910:95-102. [DOI: 10.1016/j.jchromb.2012.04.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 03/20/2012] [Accepted: 04/11/2012] [Indexed: 11/26/2022]
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36
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Chang C, Zhou Z, Yang Y, Han Y, Bai Y, Zhao M, Liu H. Normal phase LC coupled with direct analysis in real time MS for the chiral analysis of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol and jasmonic acid. Electrophoresis 2012; 33:3387-93. [DOI: 10.1002/elps.201200122] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2012] [Revised: 08/11/2012] [Accepted: 08/20/2012] [Indexed: 11/05/2022]
Affiliation(s)
- Cuilan Chang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry; College of Chemistry and Molecular Engineering, Peking University; Beijing; P. R. China
| | - Zhigui Zhou
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry; College of Chemistry and Molecular Engineering, Peking University; Beijing; P. R. China
| | - Youyou Yang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry; College of Chemistry and Molecular Engineering, Peking University; Beijing; P. R. China
| | - Yehua Han
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry; College of Chemistry and Molecular Engineering, Peking University; Beijing; P. R. China
| | - Yu Bai
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry; College of Chemistry and Molecular Engineering, Peking University; Beijing; P. R. China
| | - Meiping Zhao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry; College of Chemistry and Molecular Engineering, Peking University; Beijing; P. R. China
| | - Huwei Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry; College of Chemistry and Molecular Engineering, Peking University; Beijing; P. R. China
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37
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De Klerck K, Mangelings D, Vander Heyden Y. Supercritical fluid chromatography for the enantioseparation of pharmaceuticals. J Pharm Biomed Anal 2012; 69:77-92. [DOI: 10.1016/j.jpba.2012.01.021] [Citation(s) in RCA: 141] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 01/18/2012] [Accepted: 01/19/2012] [Indexed: 11/30/2022]
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38
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Yang W, Qiu J, Chen T, Yang S, Hou S. Direct Enantioseparation of Nitrogen-heterocyclic Pesticides on Amylose-tris-(5-chloro-2-methylphenylcarbamate) by Reversed-Phase High-Performance Liquid Chromatography. Chirality 2012; 24:1031-6. [DOI: 10.1002/chir.22092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2012] [Accepted: 05/29/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Wenwen Yang
- Institute of Quality Standards & Testing Technology for Agro-Products, Key Laboratory of Agro-product Quality and Safety; Chinese Academy of Agricultural Sciences; Beijing 100081 China
- Key Laboratory of Agri-Food Quality and Safety; Ministry of Agriculture; Beijing 100081 China
- College of Science; China Agricultural University; Beijing 100193 China
| | - Jing Qiu
- Institute of Quality Standards & Testing Technology for Agro-Products, Key Laboratory of Agro-product Quality and Safety; Chinese Academy of Agricultural Sciences; Beijing 100081 China
- Key Laboratory of Agri-Food Quality and Safety; Ministry of Agriculture; Beijing 100081 China
| | - Tianjin Chen
- Institute of Quality Standards & Testing Technology for Agro-Products, Key Laboratory of Agro-product Quality and Safety; Chinese Academy of Agricultural Sciences; Beijing 100081 China
- Key Laboratory of Agri-Food Quality and Safety; Ministry of Agriculture; Beijing 100081 China
| | - Shuming Yang
- Institute of Quality Standards & Testing Technology for Agro-Products, Key Laboratory of Agro-product Quality and Safety; Chinese Academy of Agricultural Sciences; Beijing 100081 China
- Key Laboratory of Agri-Food Quality and Safety; Ministry of Agriculture; Beijing 100081 China
| | - Shicong Hou
- College of Science; China Agricultural University; Beijing 100193 China
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39
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Optimization of the liquid chromatography enantioseparation of chiral acidic compounds using cellulose tris(3-chloro-4-methylphenylcarbamate) as chiral selector and polar organic mobile phases. J Chromatogr A 2012; 1234:56-63. [DOI: 10.1016/j.chroma.2012.01.072] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 01/19/2012] [Accepted: 01/25/2012] [Indexed: 11/19/2022]
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40
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Morante-Zarcero S, Sierra I. Comparative HPLC methods for β-blockers separation using different types of chiral stationary phases in normal phase and polar organic phase elution modes. Analysis of propranolol enantiomers in natural waters. J Pharm Biomed Anal 2012; 62:33-41. [DOI: 10.1016/j.jpba.2011.12.029] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 12/20/2011] [Accepted: 12/23/2011] [Indexed: 11/25/2022]
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41
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Zhou J, Yao H, Shao H, Li Y, Zhang Z. ENANTIOSEPARATION OF β-AGONISTS WITH CARBOXYMETHYL-β-CYCLODEXTRIN BY CE. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.593387] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Jie Zhou
- a School of Pharmacy, Zhengzhou University , Zhengzhou , Henan , P. R. China
- b Research Center of Nanotechnology for Drug, Zhengzhou University , Zhengzhou , Henan , P. R. China
- c Henan Key Laboratory for Molecular Medicine , Zhengzhou , Henan , P. R. China
| | - Hanchun Yao
- a School of Pharmacy, Zhengzhou University , Zhengzhou , Henan , P. R. China
| | - Hong Shao
- a School of Pharmacy, Zhengzhou University , Zhengzhou , Henan , P. R. China
- b Research Center of Nanotechnology for Drug, Zhengzhou University , Zhengzhou , Henan , P. R. China
- c Henan Key Laboratory for Molecular Medicine , Zhengzhou , Henan , P. R. China
| | - Yinghui Li
- a School of Pharmacy, Zhengzhou University , Zhengzhou , Henan , P. R. China
| | - Zhenzhong Zhang
- a School of Pharmacy, Zhengzhou University , Zhengzhou , Henan , P. R. China
- b Research Center of Nanotechnology for Drug, Zhengzhou University , Zhengzhou , Henan , P. R. China
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42
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Environmental Fate of Chiral Pharmaceuticals: Determination, Degradation and Toxicity. ENVIRONMENTAL CHEMISTRY FOR A SUSTAINABLE WORLD 2012. [DOI: 10.1007/978-94-007-2439-6_1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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43
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Chiral separations in normal-phase liquid chromatography: Enantioselectivity of recently commercialized polysaccharide-based selectors. Part II. Optimization of enantioselectivity. J Pharm Biomed Anal 2011; 56:521-37. [DOI: 10.1016/j.jpba.2011.06.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 05/23/2011] [Accepted: 06/16/2011] [Indexed: 11/24/2022]
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44
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Hendrickx A, Mangelings D, Chankvetadze B, Vander Heyden Y. Updating a chiral separation strategy for non-acidic drugs with capillary electrochromatography applicable for both chlorinated and non-chlorinated polysaccharide selectors. Electrophoresis 2011; 32:2718-26. [DOI: 10.1002/elps.201100264] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Revised: 06/15/2011] [Accepted: 06/15/2011] [Indexed: 11/10/2022]
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45
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Kennedy JH, Scott Sharp V, Williams JD. Development of Preparative Chiral Separations Using an Intelligent Chiral Resolution System. J LIQ CHROMATOGR R T 2011. [DOI: 10.1081/jlc-120017899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Joseph H. Kennedy
- a Discovery Chemistry Research and Technology , Eli Lilly and Company , Indianapolis , Indiana , 46285 , USA
| | - V. Scott Sharp
- a Discovery Chemistry Research and Technology , Eli Lilly and Company , Indianapolis , Indiana , 46285 , USA
| | - Jeffrey D. Williams
- a Discovery Chemistry Research and Technology , Eli Lilly and Company , Indianapolis , Indiana , 46285 , USA
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46
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Chiral separations in normal phase liquid chromatography: Enantioselectivity of recently commercialized polysaccharide-based selectors. Part I: Enantioselectivity under generic screening conditions. J Pharm Biomed Anal 2011; 55:414-23. [DOI: 10.1016/j.jpba.2011.02.015] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 02/03/2011] [Accepted: 02/10/2011] [Indexed: 11/22/2022]
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47
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Douša M, Lemr K. Liquid chromatographic method for enantiopurity control of alaptide using polysaccharide stationary phases. J Sep Sci 2011; 34:1402-6. [DOI: 10.1002/jssc.201100135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 03/21/2011] [Accepted: 03/22/2011] [Indexed: 11/08/2022]
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48
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Evaluation of Generic Gradients, Sample Pooling and MS Detection as Chiral Resolution Screening Strategies on Diverse Chiral Stationary Phases. Chromatographia 2011. [DOI: 10.1007/s10337-011-1980-z] [Citation(s) in RCA: 7] [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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49
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Kažoka H, Rotkaja O, Varačeva L. Enantioseparation of 1-Phenyl-1,2,3,4-tetrahydroisoquinoline on Polysaccharide-Based Chiral Stationary Phases. Chromatographia 2011. [DOI: 10.1007/s10337-011-1991-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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50
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Method Development for Pharmaceutical Chiral Chromatography. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/b978-0-12-375680-0.00007-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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