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Mammone FR, Panusa A, Risoluti R, Cirilli R. Green HPLC Enantioseparation of Chemopreventive Chiral Isothiocyanates Homologs on an Immobilized Chiral Stationary Phase Based on Amylose tris-[( S)-α-Methylbenzylcarbamate]. Molecules 2024; 29:2895. [PMID: 38930960 PMCID: PMC11206679 DOI: 10.3390/molecules29122895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/03/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Sulforaphane is a chiral phytochemical with chemopreventive properties. The presence of a stereogenic sulfur atom is responsible for the chirality of the natural isothiocyanate. The key role of sulfur chirality in biological activity is underscored by studies of the efficacy of individual enantiomers as chemoprotective agents. The predominant native (R) enantiomer is active, whereas the (S) antipode is inactive or has little or no biological activity. Here we provide an enantioselective high-performance liquid chromatography (HPLC) protocol for the direct and complete resolution of sulforaphane and its chiral natural homologs with different aliphatic chain lengths between the sulfinyl sulfur and isothiocyanate group, namely iberin, alyssin, and hesperin. The chromatographic separations were carried out on the immobilized-type CHIRALPAK IH-3 chiral stationary phase with amylose tris-[(S)-methylbenzylcarbamate] as a chiral selector. The effects of different mobile phases consisting of pure alcoholic solvents and hydroalcoholic mixtures on enantiomer retention and enantioselectivity were carefully investigated. Simple and environmentally friendly enantioselective conditions for the resolution of all chiral ITCs were found. In particular, pure ethanol and highly aqueous mobile phases gave excellent enantioseparations. The retention factors of the enantiomers were recorded as the water content in the aqueous-organic modifier (methanol, ethanol, or acetonitrile) mobile phases progressively varied. U-shaped retention maps were generated, indicating a dual and competitive hydrophilic interaction liquid chromatography (HILIC) and reversed-phase liquid chromatography retention mechanism on the CHIRALPAK IH-3 chiral stationary phase. Finally, experimental chiroptical studies performed in ethanol solution showed that the (R) enantiomers were eluted before the (S) counterpart under all eluent conditions investigated.
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Affiliation(s)
- Francesca Romana Mammone
- National Centre for the Control and Evaluation of Medicines, Chemical Medicines Unit, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy; (F.R.M.); (A.P.)
| | - Alessia Panusa
- National Centre for the Control and Evaluation of Medicines, Chemical Medicines Unit, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy; (F.R.M.); (A.P.)
| | - Roberta Risoluti
- Department of Chemistry, “Sapienza” University of Rome, P.le A. Moro 5, 00185 Rome, Italy;
| | - Roberto Cirilli
- National Centre for the Control and Evaluation of Medicines, Chemical Medicines Unit, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy; (F.R.M.); (A.P.)
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Gao L, Cui H, Guo X, Dong Q, You X, Guo X, Qin S, Jia L. Enantioseparation by zeolitic imidazolate framework-8-silica hybrid monolithic column with sulfobutylether-β-cyclodextrin as a chiral additive in capillary electrochromatography. Mikrochim Acta 2023; 190:315. [PMID: 37474749 DOI: 10.1007/s00604-023-05908-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 07/08/2023] [Indexed: 07/22/2023]
Abstract
A zeolitic imidazolate framework (ZIF)-8-silica hybrid monolithic column was prepared by one-step sol-gel method. The stationary phase in the monolithic column was characterized by Fourier-transform infrared spectra, X-ray diffraction, thermogravimetric analysis, nitrogen adsorption/desorption, and zeta potential. The results showed that ZIF-8-silica hybrid monolithic materials had abundant functional groups, good crystallinity, large specific surface area, and good thermal stability. A capillary electrochromatography (CEC) chiral separation system was for the first time constructed with ZIF-8-silica hybrid monolithic column and sulfobutylether-β-cyclodextrin (SBE-β-CD) as a chiral additive and was applied to separate the selected single and mixed chiral compounds (13 natural amino acids and 5 chiral pesticides). Under the optimized CEC conditions, all the single analytes achieved baseline separation with resolution of 2.14-5.94 and selectivity factor of 1.06-1.49 in less than 6 min, and the mixed amino acids with similar properties were also simultaneously enantioseparated (Rs ≥ 1.82). Relative standard deviations (RSDs) of migration time and column efficiency were lower than 4.26% and did not change significantly after 200 runs, evidencing excellent reproducibility and stability. These results demonstrate that the application of SBE-β-CD as a chiral additive for ZIF-8-silica hybrid monolithic columns is a promising method for the separation of chiral compounds.
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Affiliation(s)
- Lidi Gao
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Hongshou Cui
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Xinyu Guo
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Qing Dong
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Xingyu You
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Xinshu Guo
- College of Life Science, Northeast Agricultural University, Harbin, 150038, China
| | - Shili Qin
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China.
| | - Lihua Jia
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
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Cantatore C, Visconti P, Pierini M, Cirilli R. Kinetic and mechanism study of the spontaneous, solvent- and base-catalyzed degradation of the precursor of the β-nitro alcohol metaraminol by combining HPLC/electronic circular dichroism/theoretical methods. J Pharm Biomed Anal 2022; 220:114972. [DOI: 10.1016/j.jpba.2022.114972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/26/2022] [Accepted: 07/26/2022] [Indexed: 11/17/2022]
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Konjaria ML, Kakava R, Volonterio A, Chankvetadze B, Scriba GK. Enantioseparation of chiral (benzylsulfinyl)benzamide sulfoxides by capillary electrophoresis using cyclodextrins as chiral selectors. J Chromatogr A 2022; 1672:463027. [DOI: 10.1016/j.chroma.2022.463027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 11/16/2022]
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El-Behairy M, Hassan RM, Abdallah IA. Enantioselective Separation of Chiral N1-Substituted-1 H-pyrazoles: Greenness Profile Assessment and Chiral Recognition Analysis. ACS OMEGA 2021; 6:25835-25841. [PMID: 34632239 PMCID: PMC8495864 DOI: 10.1021/acsomega.1c04613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/15/2021] [Indexed: 06/13/2023]
Abstract
Two commercialized polysaccharide-based chiral stationary phases, Lux cellulose-2 and Lux amylose-2, were examined for their chiral recognition ability on a set of 18 biologically active racemic 4,5-dihydro-1H-pyrazole derivatives by applying normal and polar organic elution modes. The results showed that all compounds were baseline-resolved with at least one of the used elution modes. The cellulose-based column was superior using polar organic mobile-phase compositions with analysis times close to 5 min and resolutions up to 18, while the enantiomer-resolving ability of amylose-based columns was greater using the normal elution mode with analysis times close to 30 min and resolutions up to 30. The competition between the analytes and the mobile phase constituents on H-bond interactions with the stationary phase has been discussed, and the impact of this competition on chiral recognition has been investigated. It was found that the polar organic mode is very beneficial for short run times and sharp peaks. The developed enantioselective high-performance liquid chromatography (HPLC) methods will be applied to monitor the stereoselective synthesis of compounds 1-18 or to develop preparative HPLC techniques for compounds 1-18, followed by stereospecific pharmacological studies for each enantiomer separately. Greenness profile assessment of the different elution solvents was carried out using the AGREE metric approach.
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Affiliation(s)
- Mohammed
Farrag El-Behairy
- Department
of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Sadat City, Sadat City 32897, Egypt
| | - Rasha M. Hassan
- Medicinal
and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries
Research Division, National Research Centre (ID: 60014618), P.O. 12622, Dokki, Giza 12511, Egypt
| | - Inas A. Abdallah
- Department
of Analytical Chemistry, Faculty of Pharmacy, University of Sadat City, Sadat
City 32897, Egypt
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Rosetti A, Ferretti R, Villani C, Pierini M, Cirilli R. Simultaneous enantio- and diastereo-selective high-performance liquid chromatography separation of paroxetine on an immobilized amylose-based chiral stationary phase under green reversed-phase conditions. J Chromatogr A 2021; 1653:462406. [PMID: 34320436 DOI: 10.1016/j.chroma.2021.462406] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/06/2021] [Accepted: 07/09/2021] [Indexed: 11/16/2022]
Abstract
A simple and green high-performance liquid chromatography method for the separation of paroxetine from its enantiomeric and diastereomeric impurities has been developed. The simultaneous chromatographic resolution was carried out on the amylose-based Chiralpak IA-3 chiral stationary phase using the mixture ethanol-water-diethylamine 80:20:0.1 (v/v/v) as a mobile phase. The effects of substitution of ethanol with methanol or acetonitrile and changes in column temperature on selectivity have been carefully investigated. The optimized single-run HPLC protocol allows the baseline separation of the enantiomers of paroxetine without suffering from interference from five other chiral and achiral impurities reported in the monograph of the European Pharmacopoeia.
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Affiliation(s)
- Alessia Rosetti
- National Centre for the Control and Evaluation of Medicines, Chemical Medicines Unit, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, 00161, Rome, Italy; Department of Chemistry and Technology of Drugs, Sapienza University of Rome, 00185, Rome, Italy
| | - Rosella Ferretti
- National Centre for the Control and Evaluation of Medicines, Chemical Medicines Unit, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, 00161, Rome, Italy
| | - Claudio Villani
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, 00185, Rome, Italy
| | - Marco Pierini
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, 00185, Rome, Italy
| | - Roberto Cirilli
- National Centre for the Control and Evaluation of Medicines, Chemical Medicines Unit, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, 00161, Rome, Italy.
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The molecular bases of chiral recognition in 2-(benzylsulfinyl)benzamide enantioseparation. Anal Chim Acta 2021; 1141:194-205. [DOI: 10.1016/j.aca.2020.10.050] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 10/19/2020] [Accepted: 10/23/2020] [Indexed: 12/13/2022]
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