1
|
Preparation and Application of Partially Substituted Phenylcarbamate-(3-(2-O-β-cyclodextrin)-2-hydroxypropoxy)-propylsilyl-Appended Silica Particles as Chiral Stationary Phase for Multi-mode HPLC. Chromatographia 2020. [DOI: 10.1007/s10337-020-03908-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
2
|
Cirilli R. HPLC Enantioseparations with Polysaccharide-Based Chiral Stationary Phases in HILIC Conditions. Methods Mol Biol 2019; 1985:127-146. [PMID: 31069732 DOI: 10.1007/978-1-4939-9438-0_7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In contrast to achiral hydrophilic interaction liquid chromatography (HILIC), which is a popular and largely applied technique to analyze polar compounds such as pharmaceuticals, metabolites, proteins, peptides, amino acids, oligonucleotides, and carbohydrates, the introduction of the HILIC concept in enantioselective chromatography has been relatively recent and scarcely debated. In this chapter, the HILIC enantioseparations carried out on polysaccharide-based chiral stationary phases are grouped and discussed. Another objective of this chapter is to provide a comprehensive overview and insight into the experimental conditions needed to operate under HILIC mode. Finally, to stimulate and facilitate the application of this chromatographic technique, a detailed experimental protocol of a chiral resolution on a chlorinated cellulose-based chiral stationary phase under HILIC conditions is described.
Collapse
Affiliation(s)
- Roberto Cirilli
- National Institute of Health, Centre for the Control and Evaluation of Medicines, Rome, Italy.
| |
Collapse
|
3
|
Ferretti R, Zanitti L, Cirilli R. Development of a high-performance liquid chromatography method for the simultaneous determination of chiral impurities and assay of (S
)-clopidogrel using a cellulose-based chiral stationary phase in methanol/water mode. J Sep Sci 2018; 41:1208-1215. [DOI: 10.1002/jssc.201701191] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/16/2017] [Accepted: 11/17/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Rosella Ferretti
- Centro nazionale per il controllo e la valutazione dei farmaci; Istituto Superiore di Sanità; Rome Italy
| | - Leo Zanitti
- Centro nazionale per il controllo e la valutazione dei farmaci; Istituto Superiore di Sanità; Rome Italy
| | - Roberto Cirilli
- Centro nazionale per il controllo e la valutazione dei farmaci; Istituto Superiore di Sanità; Rome Italy
| |
Collapse
|
4
|
Cirilli R, Guglielmi P, Formica FR, Casulli A, Carradori S. The sodium salt of the enantiomers of ricobendazole: Preparation, solubility and chiroptical properties. J Pharm Biomed Anal 2017; 139:1-7. [PMID: 28258982 DOI: 10.1016/j.jpba.2017.01.057] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 01/26/2017] [Accepted: 01/30/2017] [Indexed: 11/26/2022]
Abstract
Albendazole (ABZ) is a sulfanyl-benzimidazole anthelmintic drug used worldwide in the treatment and prevention of parasitic diseases in animals and humans. Following oral administration, ABZ is rapidly oxidized into the pharmacologically active chiral sulfoxide metabolite known as ricobendazole (RBZ). As its achiral precursor, RBZ shows very low intestinal absorption due to its poor solubility in water (0.06mgmL-1). To the best of our knowledge, there is no known example in human medicine of a water-soluble salt form of racemic or enantiomerically pure RBZ. In the present study, we describe in detail the preparation of the sodium (Na) salt of the enantiomers of RBZ through a two-step process: i) the multi-milligram resolution of RBZ by HPLC on the amylose-based Chiralpak IG chiral stationary phase under polar organic mode; ii) the salification of the isolated enantiomers of RBZ by reaction with sodium hydroxide solution. The spectroscopic and chiroptical properties of the RBZ-Na enantiomers were determined. Due to their unique solubility in 0.01M phosphate buffer at physiological pH (14.49mgmL-1) and the high sample throughput obtained on semipreparative separation of the non-salified form, it is potentially possible to develop new anthelmintic enantiopure formulations with improved pharmacokinetic properties and lower toxicity.
Collapse
Affiliation(s)
- Roberto Cirilli
- Centro nazionale per il controllo e la valutazione dei farmaci, Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy.
| | - Paolo Guglielmi
- Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, P.le A. Moro 5, 00185 Rome, Italy
| | - Francesca Romana Formica
- Centro nazionale per il controllo e la valutazione dei farmaci, Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy
| | - Adriano Casulli
- Dipartimento di Malattie Infettive, Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy; World Health Organization Collaborating Centre for the Epidemiology, Detection and Control of Cystic and Alveolar Echinococcosis (in Animals and Humans), Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy
| | - Simone Carradori
- Dipartimento di Farmacia, Università "G. D'Annunzio" di Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
| |
Collapse
|
5
|
Hu G, Huang M, Luo C, Wang Q, Zou JW. Interactions between pyrazole derived enantiomers and Chiralcel OJ: Prediction of enantiomer absolute configurations and elution order by molecular dynamics simulations. J Mol Graph Model 2016; 66:123-32. [DOI: 10.1016/j.jmgm.2016.04.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 03/07/2016] [Accepted: 04/01/2016] [Indexed: 10/22/2022]
|
6
|
Sadutto D, Ferretti R, Zanitti L, Casulli A, Cirilli R. Analytical and semipreparative high performance liquid chromatography enantioseparation of bicalutamide and its chiral impurities on an immobilized polysaccharide-based chiral stationary phase. J Chromatogr A 2016; 1445:166-71. [DOI: 10.1016/j.chroma.2016.04.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 03/31/2016] [Accepted: 04/04/2016] [Indexed: 01/04/2023]
|
7
|
Shen J, Okamoto Y. Efficient Separation of Enantiomers Using Stereoregular Chiral Polymers. Chem Rev 2015; 116:1094-138. [DOI: 10.1021/acs.chemrev.5b00317] [Citation(s) in RCA: 465] [Impact Index Per Article: 51.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Jun Shen
- Polymer
Materials Research Center, Key Laboratory of Superlight Materials
and Surface Technology, Ministry of Education, College of Materials
Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, People’s Republic of China
| | - Yoshio Okamoto
- Polymer
Materials Research Center, Key Laboratory of Superlight Materials
and Surface Technology, Ministry of Education, College of Materials
Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, People’s Republic of China
- Graduate
School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| |
Collapse
|
8
|
Influence of the nature of alkyl substituents on the high-performance liquid chromatography enantioseparation and retention of new atropisomeric 1,1′-bibenzimidazole derivatives on amylose tris(3,5-dimethylphenylcarbamate) chiral stationary phase. J Chromatogr A 2014; 1363:128-36. [DOI: 10.1016/j.chroma.2014.08.060] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 08/14/2014] [Accepted: 08/16/2014] [Indexed: 01/01/2023]
|
9
|
Shen J, Ikai T, Okamoto Y. Synthesis and application of immobilized polysaccharide-based chiral stationary phases for enantioseparation by high-performance liquid chromatography. J Chromatogr A 2014; 1363:51-61. [DOI: 10.1016/j.chroma.2014.06.042] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/10/2014] [Accepted: 06/11/2014] [Indexed: 11/30/2022]
|
10
|
Cirilli R, Ferretti R, Gallinella B, Zanitti L. Retention behavior of proton pump inhibitors using immobilized polysaccharide-derived chiral stationary phases with organic-aqueous mobile phases. J Chromatogr A 2013; 1304:147-53. [DOI: 10.1016/j.chroma.2013.07.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 07/03/2013] [Accepted: 07/04/2013] [Indexed: 10/26/2022]
|
11
|
Cardia MC, Sanna ML, Meleddu R, Distinto S, Yañez M, Viña D, Lamela M, Maccioni E. A Novel Series of 3,4-Disubstituted Dihydropyrazoles: Synthesis and Evaluation for MAO Enzyme Inhibition. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Maria Cristina Cardia
- Dipartimento Farmaco Chimico Tecnologico; Università degli Studi di Cagliari; Via Ospedale; 72, 09124; Cagliari; Italy
| | - Maria Luisa Sanna
- Dipartimento Farmaco Chimico Tecnologico; Università degli Studi di Cagliari; Via Ospedale; 72, 09124; Cagliari; Italy
| | - Rita Meleddu
- Dipartimento Farmaco Chimico Tecnologico; Università degli Studi di Cagliari; Via Ospedale; 72, 09124; Cagliari; Italy
| | - Simona Distinto
- Dipartimento di Scienze Farmaco Biologiche; University “Magna Graecia” of Catanzaro; Campus “S. Venuta,”; 88100; Catanzaro (CZ); Italy
| | - Matilde Yañez
- Departamento de Farmacología and Instituto de Farmacia Industrial; Universidad de Santiago de Compostela, Campus Universitario Sur; E-15782; Santiago de Compostela; Spain
| | - Dolores Viña
- Departamento de Farmacología and Instituto de Farmacia Industrial; Universidad de Santiago de Compostela, Campus Universitario Sur; E-15782; Santiago de Compostela; Spain
| | - Manuel Lamela
- Departamento de Farmacología and Instituto de Farmacia Industrial; Universidad de Santiago de Compostela, Campus Universitario Sur; E-15782; Santiago de Compostela; Spain
| | - Elias Maccioni
- Dipartimento Farmaco Chimico Tecnologico; Università degli Studi di Cagliari; Via Ospedale; 72, 09124; Cagliari; Italy
| |
Collapse
|
12
|
Franco P, Zhang T. Common screening approaches for efficient analytical method development in LC and SFC on columns packed with immobilized polysaccharide-derived chiral stationary phases. Methods Mol Biol 2013; 970:113-126. [PMID: 23283773 DOI: 10.1007/978-1-62703-263-6_6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Owing to their remarkable enantioselectivity, versatility, and stability, immobilized polysaccharide-based chiral stationary phases (CSPs) have been successfully integrated into the tool box of many research and industry groups for the separation of enantiomers or stereoisomers by liquid and supercritical fluid chromatography. Due to the structurally diverse range of compounds available, efficient method development for chiral separations utilizing such CSPs is a challenging subject. In this chapter, we will discuss simplified screening protocols and straightforward approaches to achieve chiral separations in HPLC and SFC using the column series CHIRALPAK™ IA, IB, IC, and ID in reasonable time frame and with limited experimental work and a high success rate.
Collapse
|
13
|
Complementary enantiorecognition patterns and specific method optimization aspects on immobilized polysaccharide-derived chiral stationary phases. J Chromatogr A 2012; 1269:178-88. [DOI: 10.1016/j.chroma.2012.09.071] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 09/06/2012] [Accepted: 09/12/2012] [Indexed: 11/23/2022]
|
14
|
Simultaneous enantioselective determination of fenbuconazole and its main metabolites in soil and water by chiral liquid chromatography/tandem mass spectrometry. J Chromatogr A 2011; 1218:6667-74. [DOI: 10.1016/j.chroma.2011.07.059] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 07/15/2011] [Accepted: 07/18/2011] [Indexed: 11/20/2022]
|
15
|
Determination of the absolute configuration of 1,3,5-triphenyl-4,5-dihydropyrazole enantiomers by a combination of VCD, ECD measurements, and theoretical calculations. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.06.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
16
|
Qu HT, Li JQ, Wu GS, Shen J, Shen XD, Okamoto Y. Preparation and chiral recognition in HPLC of cellulose 3,5-dichlorophenylcarbamates immobilized onto silica gel. J Sep Sci 2011; 34:536-41. [DOI: 10.1002/jssc.201000800] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2010] [Revised: 11/14/2010] [Accepted: 12/09/2010] [Indexed: 11/05/2022]
|
17
|
Zanitti L, Ferretti R, Gallinella B, La Torre F, Sanna ML, Mosca A, Cirilli R. Direct HPLC enantioseparation of omeprazole and its chiral impurities: Application to the determination of enantiomeric purity of esomeprazole magnesium trihydrate. J Pharm Biomed Anal 2010; 52:665-71. [DOI: 10.1016/j.jpba.2010.02.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Revised: 02/15/2010] [Accepted: 02/16/2010] [Indexed: 10/19/2022]
|
18
|
Reversed-phase screening strategies for liquid chromatography on polysaccharide-derived chiral stationary phases. J Chromatogr A 2010; 1217:1048-55. [DOI: 10.1016/j.chroma.2009.11.040] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2009] [Revised: 11/11/2009] [Accepted: 11/16/2009] [Indexed: 11/20/2022]
|
19
|
Cirilli R, Fiore S, La Torre F, Maccioni E, Secci D, Sanna ML, Faggi C. Semipreparative HPLC enantioseparation, chiroptical properties, and absolute configuration of two novel cyclooxygenase-2 inhibitors. Chirality 2010; 22:56-62. [DOI: 10.1002/chir.20705] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
20
|
Tang S, Ikai T, Tsuji M, Okamoto Y. Immobilization and chiral recognition of 3,5-dimethylphenylcarbamates of cellulose and amylose bearing 4-(trimethoxysilyl)phenylcarbamate groups. Chirality 2010; 22:165-72. [DOI: 10.1002/chir.20722] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
21
|
Li JQ, Ikai T, Okamoto Y. Preparation and HPLC application of chiral stationary phase from 4-tert-butylphenylcarbamates of cellulose and amylose immobilized onto silica gel. J Sep Sci 2009; 32:2885-91. [DOI: 10.1002/jssc.200900206] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
22
|
Ikai T, Okamoto Y. Structure Control of Polysaccharide Derivatives for Efficient Separation of Enantiomers by Chromatography. Chem Rev 2009; 109:6077-101. [DOI: 10.1021/cr8005558] [Citation(s) in RCA: 347] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Tomoyuki Ikai
- EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan, and College of Material Science and Chemical Engineering, Harbin Engineering University, 145 Nantong St. Harbin 150001, P. R. China
| | - Yoshio Okamoto
- EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan, and College of Material Science and Chemical Engineering, Harbin Engineering University, 145 Nantong St. Harbin 150001, P. R. China
| |
Collapse
|
23
|
Ghanem A, Aboul-Enein MN, El-Azzouny A, El-Behairy MF. Solvent Versatility of Immobilized Amylose and Cellulose-Based Chiral Stationary Phases in Enantioselective LC Separation and Monitoring of Bio-Catalyzed Resolutions of Acidic Drugs in Non-Standard Organic Solvents. Chromatographia 2009. [DOI: 10.1365/s10337-009-1201-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
24
|
Ferretti R, Gallinella B, La Torre F, Zanitti L, Turchetto L, Mosca A, Cirilli R. Direct high-performance liquid chromatography enantioseparation of terazosin on an immobilised polysaccharide-based chiral stationary phase under polar organic and reversed-phase conditions. J Chromatogr A 2009; 1216:5385-90. [DOI: 10.1016/j.chroma.2009.05.034] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2009] [Revised: 05/12/2009] [Accepted: 05/14/2009] [Indexed: 11/29/2022]
|
25
|
Cirilli R, Ferretti R, La Torre F, Borioni A, Fares V, Camalli M, Faggi C, Rotili D, Mai A. Chiral HPLC separation and absolute configuration of novelS-DABO derivatives. Chirality 2009; 21:604-12. [DOI: 10.1002/chir.20654] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
26
|
Cirilli R, Alcaro S, Fioravanti R, Secci D, Fiore S, La Torre F, Ortuso F. Unusually high enantioselectivity in high-performance liquid chromatography using cellulose tris(4-methylbenzoate) as a chiral stationary phase. J Chromatogr A 2009; 1216:4673-8. [DOI: 10.1016/j.chroma.2009.04.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 03/30/2009] [Accepted: 04/03/2009] [Indexed: 10/20/2022]
|
27
|
Zabkova M, Zabka M, Rodrigues AE. Separation of Racemic Chiral Drugs Using Immobilized CHIRALPAK IA: Methodology for Preparative Scale Development. SEP SCI TECHNOL 2009. [DOI: 10.1080/01496390802590079] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
28
|
Reversed-phase chiral liquid chromatography on polysaccharide-based stationary phase coupled with tandem mass spectrometry for simultaneous determination of four stereoisomers of MK-0974 in human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 873:195-202. [DOI: 10.1016/j.jchromb.2008.08.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2008] [Revised: 08/25/2008] [Accepted: 08/26/2008] [Indexed: 11/20/2022]
|
29
|
Enantiomer Resolution of Nonsteroidal Anti-Inflammatory Drugs on Chiral Stationary Phases Derived from Polysaccharide Derivatives. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2008. [DOI: 10.1016/s1872-2040(08)60067-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
30
|
Ikai T, Yamamoto C, Kamigaito M, Okamoto Y. Organic-Inorganic Hybrid Materials for Efficient Enantioseparation Using Cellulose 3,5-Dimethylphenylcarbamate and Tetraethyl Orthosilicate. Chem Asian J 2008; 3:1494-9. [DOI: 10.1002/asia.200800022] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
31
|
Ghanem A, Aboul‐Enein MN, El‐Azzouny A, El‐Behairy MF, Al‐Humaidi E, Alaidan AA, Amin K, Al‐Ahdal MN. Direct enantioselective HPLC monitoring of lipase‐catalyzed kinetic resolution of tiaprofenic acid in nonstandard HPLC organic solvents. Chirality 2008; 20:871-7. [DOI: 10.1002/chir.20533] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
32
|
Zhang T, Nguyen D, Franco P. Enantiomer resolution screening strategy using multiple immobilised polysaccharide-based chiral stationary phases. J Chromatogr A 2008; 1191:214-22. [DOI: 10.1016/j.chroma.2007.12.026] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2007] [Revised: 12/06/2007] [Accepted: 12/10/2007] [Indexed: 10/22/2022]
|
33
|
Cirilli R, Ferretti R, De Santis E, Gallinella B, Zanitti L, La Torre F. High-performance liquid chromatography separation of enantiomers of flavanone and 2′-hydroxychalcone under reversed-phase conditions. J Chromatogr A 2008; 1190:95-101. [DOI: 10.1016/j.chroma.2008.02.101] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2008] [Revised: 02/21/2008] [Accepted: 02/25/2008] [Indexed: 10/22/2022]
|
34
|
Zhang T, Nguyen D, Franco P, Isobe Y, Michishita T, Murakami T. Cellulose tris(3,5-dichlorophenylcarbamate) immobilised on silica: A novel chiral stationary phase for resolution of enantiomers. J Pharm Biomed Anal 2008; 46:882-91. [DOI: 10.1016/j.jpba.2007.06.008] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2007] [Revised: 06/05/2007] [Accepted: 06/07/2007] [Indexed: 11/29/2022]
|
35
|
Biava M, Cirilli R, Fares V, Ferretti R, Gallinella B, La Torre F, Poce G, Porretta GC, Supino S, Villani C. HPLC enantioseparation and absolute configuration of novel anti-inflammatory pyrrole derivatives. Chirality 2008; 20:775-80. [DOI: 10.1002/chir.20518] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
36
|
High-performance liquid chromatography enantioseparation of proton pump inhibitors using the immobilized amylose-based Chiralpak IA chiral stationary phase in normal-phase, polar organic and reversed-phase conditions. J Chromatogr A 2008; 1177:105-13. [DOI: 10.1016/j.chroma.2007.11.027] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2007] [Revised: 11/06/2007] [Accepted: 11/09/2007] [Indexed: 11/22/2022]
|
37
|
Cirilli R, Ferretti R, La Torre F, Secci D, Bolasco A, Carradori S, Pierini M. High-performance liquid chromatographic separation of enantiomers and diastereomers of 2-methylcyclohexanone thiosemicarbazone, and determination of absolute configuration and configurational stability. J Chromatogr A 2007; 1172:160-9. [PMID: 17959189 DOI: 10.1016/j.chroma.2007.10.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2007] [Revised: 09/12/2007] [Accepted: 10/02/2007] [Indexed: 10/22/2022]
Abstract
Simultaneous HPLC diastereo- and enantioseparations of 2-methylcyclohexanone thiosemicarbazone (2-MCET) were accomplished on coated- and immobilized type polysaccharide-based chiral stationary phases (CSPs). The identification of all stereoisomeric forms and their stereochemistry were achieved by combining theoretical, HPLC and chiroptical data. The stereochemical stability of the target compound was studied by classical off-column and dynamic HPLC kinetic procedures and the influence of different parameters such solvent, TFA concentration and temperature on stereoisomerization process was evaluated. The findings obtained by chromatographic and kinetic experiments were used to develop a simple method to convert the racemic form of 2-MCET into a single enantiomer.
Collapse
Affiliation(s)
- R Cirilli
- Istituto Superiore di Sanità, Dipartimento del Farmaco, Viale Regina Elena 299, 00161 Rome, Italy.
| | | | | | | | | | | | | |
Collapse
|
38
|
Ghanem A, Al-Humaidi E. Chiral recognition ability and solvent versatility of bonded amylose tris(3,5-dimethylphenylcarbamate) chiral stationary phase: enantioselective liquid chromatographic resolution of racemic N-alkylated barbiturates and thalidomide analogs. Chirality 2007; 19:477-84. [PMID: 17394130 DOI: 10.1002/chir.20398] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The chiral recognition ability and solvent versatility of a new chiral stationary phase containing amylose 3,5-dimethylphenylcarabamate immobilized onto silica gel (CHIRALPAK IA) is investigated. Thus, the direct enantioselective separation of a set of racemic N-alkylated barbiturates and 3-alkylated analogs of thalidomide was conducted using different nonstandard solvents as eluent and diluent, respectively in high-performance liquid chromatography (HPLC). The separation, resolution, and elution order of the investigated compounds were compared on both immobilized and coated amylose tris(3,5-dimethylphenylcarbamate) chiral stationary phases (Chiralpak IA and Chiralpak AD, respectively) using a mixture of n-hexane/2-propanol (90:10 v/v) as mobile phase with different flow-rates and fixed UV detection at 254 nm. The effect of the immobilization of the amylose tris(3,5-dimethylphenylcarbamate) chiral stationary phase on silica (Chiralpak IA) on the chiral recognition ability was noted as the bonded phase (Chiralpak IA) was superior in chiral recognition and possesses a higher resolving power in most of the reported cases than the coated one (Chiralpak AD). A few racemates were not or poorly resolved on the immobilized Chiralpak IA or the coated Chiralpak AD when using standard solvents were most efficiently resolved on the immobilized Chiralpak IA upon using nonstandard solvents. Furthermore, the immobilized phase withstands the nonstandard (prohibited) HPLC solvents such as dichloromethane, ethyl acetate, tetrahydrofuran, methyl-tert-butyl ether, and others when used as eluents or as a dissolving agent for the analyte itself. The direct analysis of a real sample extracted from plasma using DCM on Chiralpak IA is also shown.
Collapse
Affiliation(s)
- Ashraf Ghanem
- Biomedicinal Chemistry Unit, Biological and Medical Research Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.
| | | |
Collapse
|
39
|
Ikai T, Yamamoto C, Kamigaito M, Okamoto Y. Immobilization of polysaccharide derivatives onto silica gel. J Chromatogr A 2007; 1157:151-8. [PMID: 17482625 DOI: 10.1016/j.chroma.2007.04.054] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2007] [Revised: 04/19/2007] [Accepted: 04/23/2007] [Indexed: 11/18/2022]
Abstract
The 3,5-dimethylphenylcarbamates of cellulose and amylose bearing a small amount of 3-(triethoxysilyl)propyl residues were synthesized by a simple process and efficiently immobilized onto a silica gel support by intermolecular polycondensation of the triethoxysilyl groups. The obtained chiral packing materials (CPMs) were evaluated by high-performance liquid chromatography. The polysaccharide derivatives containing about 1-2% of the 3-(triethoxysilyl)propyl residue were efficiently immobilized with a high chiral recognition. The immobilized CPMs could be used with the eluents containing chloroform and tetrahydrofuran, which cannot be used with the conventional coated-type CPMs. By using these eluents, the chiral recognitions for many racemates could be improved.
Collapse
Affiliation(s)
- Tomoyuki Ikai
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | | | | | | |
Collapse
|
40
|
Ikail T, Yamamoto C, Kamigaito M, Okamoto Y. Preparation and chiral recognition ability of crosslinked beads of polysaccharide derivatives. J Sep Sci 2007; 30:971-8. [PMID: 17566329 DOI: 10.1002/jssc.200600438] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The spherical beads consisting of cellulose 3,5-dimethylphenylcarbamate with partial hydroxyl groups were prepared to be used as chiral packing materials (CPMs) for HPLC. The beads were obtained without using macroporous silica gel, which is usually used as the support of the CPMs based on the polysaccharide derivatives. After the crosslinking in the bead with diisocyanates, such as 4,4'-diphenylmethane diisocyanate (MDI), 4,4'-dibenzyl diisocyanate (DBDI), tolylene-2,4-diisocyanate (TDI), and m-xylylene diisocyanate (XDI), the obtained beads were packed into an HPLC column. As the content of the hydroxyl groups of the cellulose derivatives decreased, the obtained CPM exhibited a higher chiral recognition ability. The beads possessed a higher loading capacity than the CPM prepared by coating the cellulose derivative on silica gel. The crosslinked beads could be used with the eluent containing chloroform. The amylose derivative beads were also prepared as a CPM for chiral HPLC.
Collapse
Affiliation(s)
- Tomoyuki Ikail
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Japan
| | | | | | | |
Collapse
|
41
|
Ghanem A. Exploring solvent versatility in immobilized cellulose-based chiral stationary phase for the enantioselective liquid chromatographic resolution of racemates. J Sep Sci 2007; 30:1019-28. [PMID: 17566336 DOI: 10.1002/jssc.200600357] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Chiralpak IB, a new chiral stationary phase (CSP) containing cellulose tris(3,5-dimethylphenylcarabamate) immobilized onto silica gel, is investigated for the direct enantioselective separation of a set of racemic N-alkylated barbiturates and analogs of thalidomide alkylated in position 3 of the piperidin-2,6-dione ring using different nonstandard solvents such as dichloromethane (DCM), ethyl acetate, THF, methyl tert-butyl ether as an eluent and diluent, respectively, in HPLC. The separation, resolution, and elution order of the investigated compounds were compared on both immobilized and coated cellulose tris(3,5-dimethylphenylcarbamate) CSPs (Chiralpak IB and Chiralcel OD, respectively) using a mixture of n-hexane/2-propanol (90:10 v/v) as mobile phase with different flow-rates and fixed UV detection at 254 nm. The effect of the immobilization of the cellulose tris-(3,5-dimethylphenylcarbamate) CSP on silica (Chiralpak IB) on the chiral recognition ability was noted as the coated phase (Chiralcel OD) possesses a higher resolving power in some cases than the immobilized one (Chiralpak IB). However, a few racemates, which were not or poorly resolved on the immobilized Chiralpak IB or the coated Chiralcel OD when using standard solvents were most efficiently resolved on the immobilized Chiralpak IB upon using nonstandard solvents. Furthermore, the immobilized phase withstands the nonstandard (prohibited) HPLC solvents mentioned previously when used as eluents or as a dissolving agent for the analyte itself. An example of inversion or apparent inversion of elution order on Chiralpak IB is reported. The direct analysis of a spiked plasma sample extracted using DCM on Chiralpak IB is also shown.
Collapse
Affiliation(s)
- Ashraf Ghanem
- Biomedicinal Chemistry Unit, Biological and Medical Research Department, King Faisal Specialist Hospital and Research Centre, (MBC-03-95), Riyadh, Saudi Arabia.
| |
Collapse
|
42
|
Ghanem A, El-Behairy MF, Al-Ahdal MN. Direct Enantioselective HPLC Monitoring of Lipase-Catalyzed Kinetic Resolution of 2-Phenoxy Propionic Acid in Non-Standard Organic Solvents. Chromatographia 2007. [DOI: 10.1365/s10337-007-0216-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
43
|
Jin JY, Lee W, Park JH, Ryoo JJ. Covalently Bonded and Coated Chiral Stationary Phases Derived from Polysaccharide Derivatives for Enantiomer Separation of N‐Fluorenylmethoxycarbonyl α‐Amino Acids with Fluorescence Detection. J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070600717007] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Jing Yu Jin
- a College of Pharmacy , Chosun University , Kwangju, S. Korea
| | - Wonjae Lee
- a College of Pharmacy , Chosun University , Kwangju, S. Korea
| | - Jung Hag Park
- b Department of Chemistry , Yeungnam University , Kyoungsan, S. Korea
| | - Jae Jeong Ryoo
- c Department of Chemistry Education , Kyungpook National University , Daegu, S. Korea
| |
Collapse
|
44
|
Cirilli R, Ferretti R, Gallinella B, La Torre F, Mai A, Rotili D. Analytical and semipreparative high performance liquid chromatography separation of stereoisomers of novel 3,4-dihydropyrimidin-4(3H)-one derivatives on the immobilised amylose-based Chiralpak IA chiral stationary phase. J Sep Sci 2006; 29:1399-406. [PMID: 16894784 DOI: 10.1002/jssc.200600019] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Direct HPLC separation of stereoisomers of three novel 5-methyl-2-(alkylthio)-6-(2,6-difluorophenylalkyl)-3,4-dihydropyrimidin-4(3H)-ones endowed with antiviral and potential antiproliferative and morphological differentiation activity against melanoma cells was performed by using the new immobilised amylose-based Chiralpak IA chiral stationary phase. Stereoselective conditions were achieved using normal phase eluents containing "non-standard" solvents such as ethyl acetate, methyl tertbutyl ether, or dichloromethane. In order to study the chiroptical properties of single stereoisomers, mg-scale separations were performed on analytical and semipreparative size Chiralpak IA columns in combination with ethyl acetate-based eluents.
Collapse
Affiliation(s)
- Roberto Cirilli
- Dipartimento del Farmaco, Istituto Superiore di Sanità, Roma, Italy
| | | | | | | | | | | |
Collapse
|
45
|
Zhang T, Nguyen D, Franco P. Use of evaporative light scattering detector in the detection and quantification of enantiomeric mixtures by HPLC. J Sep Sci 2006; 29:1517-24. [PMID: 16894797 DOI: 10.1002/jssc.200600128] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Routinely used in our laboratories at analytical scale, an evaporative light scattering detector (ELSD) has proved to be versatile in the detection of enantiomeric resolution using chiral stationary phases by HPLC. Though this kind of detector has been widely used in various domains, its application in enantiomeric resolution has not been discussed in the literature and is found to have very specific features especially in the quantitative perspective. In contrast with the UV detection, the peak area from ELSD for both enantiomers of a racemic mixture may not be the same. This complicates the assessment of the enantiomeric purity of unknown samples. This current work deals with some practical aspects in the detection of enantiomers and in accurate quantitative determination of enantiomeric purity by ELSD. Effects of analyte nature (more precisely molecular weight and volatility), peak shape and peak shape difference between enantiomers on the quantitative integration by ELSD are discussed in connection with the UV-detection results. The calibration for quantitative enantiomeric analysis and its effectiveness are demonstrated.
Collapse
Affiliation(s)
- Tong Zhang
- Chiral Technologies Europe, Parc d'innovation, Bd Gonthier d'Andernach, Illkirch Cedex, France
| | | | | |
Collapse
|
46
|
Cirilli R, Orlando V, Ferretti R, Turchetto L, Silvestri R, De Martino G, La Torre F. Direct HPLC enantioseparation of chiral aptazepine derivatives on coated and immobilized polysaccharide-based chiral stationary phases. Chirality 2006; 18:621-32. [PMID: 16715514 DOI: 10.1002/chir.20298] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The direct HPLC enantioseparation of Mianserin and a series of aptazepine derivatives is accomplished on polysaccharide-based chiral stationary phases (CSPs). The resolutions are performed on the coated-type Chiralcel OD and Chiralpak AD CSPs and on the first commercially available immobilized-type Chiralpak IA CSP, in normal-phase and polar-organic modes. The complete separation of enantiomers of all racemates investigated was successfully achieved under at least one of CSP/eluent combinations employed. Pure alcohols such ethanol or 2-propanol, with a fixed percentage of DEA added, serve as valuable alternatives to the more common n-hexane-based normal-phase eluents in resolution of Mianserin on the AD CSP. In order to study the chiroptical properties of aptazepine derivatives, chromatographic resolutions are carried out at semipreparative scale using Chiralpak AD and Chiralpak IA as CSPs. Nonconventional dichloromethane-based eluents have permitted to expand the chiral resolving ability of the immobilized Chiralpak IA CSP and to perform mg-scale enantioseparations with an analytical-size column. Assignment of the absolute configuration of the separated enantiomers is empirically established by comparing their chiroptical data with those of structurally related Mianserin.
Collapse
Affiliation(s)
- Roberto Cirilli
- Istituto Superiore di Sanità, Dipartimento del Farmaco, Rome, Italy.
| | | | | | | | | | | | | |
Collapse
|