1
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Pulitelli G, Mammone FR, Sadutto D, Tanini D, Cirilli R. Virtual chiral recognition of eugenol derivatives on amylose tris(3-chloro-5-methylphenylcarbamate) chiral stationary phase in unusual normal-phase mode. Anal Chim Acta 2023; 1279:341811. [PMID: 37827619 DOI: 10.1016/j.aca.2023.341811] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/05/2023] [Accepted: 09/09/2023] [Indexed: 10/14/2023]
Abstract
Chromatographic enantioseparation on polysaccharide-based chiral stationary phases has undergone explosive development over the last three decades as a method for separating the enantiomers of chiral compounds on an analytical and preparative scale. In this context, understanding the nature of the intermolecular interactions involved in retention and recognition processes is an interesting scientific challenge. In the present study, three eugenol derivatives were used as chiral references to elucidate some unexplored aspects of the enantioselective and retention properties of the Chiralpak IG-U chiral stationary phase based on amylose-tris(3-chloro-5-methylphenylcarbamate). The performance of the ultra-high performance liquid chromatography chiral packing material Chiralpak IG-U was evaluated using a two-step approach. First, binary mixtures containing variable proportions of alcohol (ethanol or 2-propanol) in n-hexane were used as mobile phases and the retention factors were recorded at three different temperatures. A rational analysis of this set of chromatographic data shows the leading role played by hydrogen bond between the OH group linked to the stereogenic centre of the analytes and the active sites of the chiral chromatographic material in obtaining a high degree of enantioseparation. The retention factors were then plotted against the percentage of alcohol modifiers to obtain retention maps with a non-linear performance trend with correlation factors >0.9990. The proposed retention map model was used to extrapolate and describe virtual chiral recognition of chiral analytes on the Chiralpak IG-U chiral stationary phase under extreme elution conditions with expected run times of hundreds or thousands of years. The presented virtual chiral recognition approach is based on a generic concept and therefore opens new possibilities for understanding the performance of other polysaccharide-based chiral stationary phases.
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Affiliation(s)
- Gaia Pulitelli
- Centre for the Control and Evaluation of Medicines, Chemical Medicines Unit, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Francesca Romana Mammone
- Centre for the Control and Evaluation of Medicines, Chemical Medicines Unit, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Daniele Sadutto
- Centre for the Control and Evaluation of Medicines, Chemical Medicines Unit, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Damiano Tanini
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3-13, I-50019, Sesto Fiorentino, Italy
| | - Roberto Cirilli
- Centre for the Control and Evaluation of Medicines, Chemical Medicines Unit, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
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2
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Cantatore C, Korb M, Lang H, Cirilli R. ON/OFF receptor-like enantioseparation of planar chiral 1,2-ferrocenes on an amylose-based chiral stationary phase: The role played by 2-propanol. Anal Chim Acta 2022; 1211:339880. [DOI: 10.1016/j.aca.2022.339880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 01/02/2023]
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3
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Saleh B, Ding T, Wang Y, Zheng X, Liu R, He L. Analytical Separation of Closantel Enantiomers by HPLC. Molecules 2021; 26:molecules26237288. [PMID: 34885866 PMCID: PMC8659055 DOI: 10.3390/molecules26237288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 11/30/2022] Open
Abstract
Closantel is an antiparasitic drug marketed in a racemic form with one chiral center. It is meaningful to develop a method for separating and analyzing the closantel enantiomers. In this work, two enantiomeric separation methods of closantel were explored by normal-phase high-performance liquid chromatography. The influences of the chiral stationary phase (CSP) structure, the mobile phase composition, the nature and proportion of different mobile phase modifiers (alcohols and acids), and the column temperature on the enantiomeric separation of closantel were investigated in detail. The two enantiomers were successfully separated on the novel CSP of isopropyl derivatives of cyclofructan 6 and n-hexane-isopropanol-trifluoroacetic acid (97:3:0.1, v/v/v) as a mobile phase with a resolution (Rs) of about 2.48. The enantiomers were also well separated on the CSP of tris-carbamates of amylose with a higher Rs (about 3.79) when a mixture of n-hexane-isopropanol-trifluoroacetic acid (55:45:0.1, v/v/v) was used as mobile phase. Thus, the proposed separation methods can facilitate molecular pharmacological and biological research on closantel and its enantiomers.
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Affiliation(s)
- Basma Saleh
- National Reference Laboratory of Veterinary Drug Residues (SCAU), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (B.S.); (T.D.); (X.Z.)
- Directorate of Veterinary Medicine, General Organization of Veterinary Services, Ministry of Agriculture, Port Said 42511, Egypt
| | - Tongyan Ding
- National Reference Laboratory of Veterinary Drug Residues (SCAU), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (B.S.); (T.D.); (X.Z.)
| | - Yuwei Wang
- Quality Supervision, Inspection and Testing Center for Domestic Animal Products Guangzhou, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China; (Y.W.); (R.L.)
| | - Xiantong Zheng
- National Reference Laboratory of Veterinary Drug Residues (SCAU), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (B.S.); (T.D.); (X.Z.)
| | - Rong Liu
- Quality Supervision, Inspection and Testing Center for Domestic Animal Products Guangzhou, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China; (Y.W.); (R.L.)
| | - Limin He
- National Reference Laboratory of Veterinary Drug Residues (SCAU), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (B.S.); (T.D.); (X.Z.)
- Quality Supervision, Inspection and Testing Center for Domestic Animal Products Guangzhou, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China; (Y.W.); (R.L.)
- Correspondence: ; Tel.: +86-20-85280237; Fax: +86-20-85284896
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4
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Rosetti A, Preda G, Villani C, Pierini M, Pasini D, Cirilli R. Triptycene derivatives as chiral probes for studying the molecular enantiorecognition on sub-2-μm particle cellulose tris(3,5-dimethylphenylcarbamate) chiral stationary phase. Chirality 2021; 33:883-890. [PMID: 34571576 DOI: 10.1002/chir.23358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/04/2021] [Accepted: 08/26/2021] [Indexed: 11/09/2022]
Abstract
Two chiral triptycene derivatives were analyzed on the Chiralpak IB-U column packed with cellulose tris(3,5-dimethylphenylcarbamate)-based sub-2-μm diameter particles. Under normal-phase conditions, sub-minute baseline enantioseparations were obtained. Differences in structural elements and chromatographic behavior of the investigated compounds were evaluated to identify the interactions that drive the chiral discrimination process. From the evaluation of the experimental chromatographic data, it was found that hydrogen bond formation is essential for the separation of enantiomers.
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Affiliation(s)
- Alessia Rosetti
- Department of Chemistry and Drug Technology, Sapienza University of Rome, Rome, Italy
| | - Giovanni Preda
- Department of Chemistry and INSTM Research Unit, University of Pavia, Pavia, Italy
| | - Claudio Villani
- Department of Chemistry and Drug Technology, Sapienza University of Rome, Rome, Italy
| | - Marco Pierini
- Department of Chemistry and Drug Technology, Sapienza University of Rome, Rome, Italy
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Pavia, Italy
| | - Roberto Cirilli
- National Center for the Control and Evaluation of Drugs, Istituto Superiore di Sanità, Rome, Italy
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5
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Comparative modelling study on enantioresolution of structurally unrelated compounds with amylose-based chiral stationary phases in reversed phase liquid chromatography-mass spectrometry conditions. J Chromatogr A 2020; 1625:461281. [DOI: 10.1016/j.chroma.2020.461281] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/23/2020] [Accepted: 05/25/2020] [Indexed: 11/20/2022]
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6
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Rotondi G, Guglielmi P, Carradori S, Secci D, De Monte C, De Filippis B, Maccallini C, Amoroso R, Cirilli R, Akdemir A, Angeli A, Supuran CT. Design, synthesis and biological activity of selective hCAs inhibitors based on 2-(benzylsulfinyl)benzoic acid scaffold. J Enzyme Inhib Med Chem 2019; 34:1400-1413. [PMID: 31401897 PMCID: PMC6713143 DOI: 10.1080/14756366.2019.1651315] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
A large library of derivatives based on the scaffold of 2-(benzylsulfinyl)benzoic acid were synthesised and tested as atypical inhibitors against four different isoforms of human carbonic anhydrase (hCA I, II, IX and XII, EC 4.2.1.1). The exploration of the chemical space around the main functional groups led to the discovery of selective hCA IX inhibitors in the micromolar/nanomolar range, thus establishing robust structure-activity relationships within this versatile scaffold. HPLC separation of some selected chiral compounds and biological evaluation of the corresponding enantiomers was performed along with molecular modelling studies on the most active derivatives.
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Affiliation(s)
- Giulia Rotondi
- a Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome , Rome , Italy
| | - Paolo Guglielmi
- a Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome , Rome , Italy
| | - Simone Carradori
- b Department of Pharmacy, "G. D'Annunzio", University of Chieti-Pescara , Chieti , Italy
| | - Daniela Secci
- a Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome , Rome , Italy
| | - Celeste De Monte
- a Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome , Rome , Italy
| | - Barbara De Filippis
- b Department of Pharmacy, "G. D'Annunzio", University of Chieti-Pescara , Chieti , Italy
| | - Cristina Maccallini
- b Department of Pharmacy, "G. D'Annunzio", University of Chieti-Pescara , Chieti , Italy
| | - Rosa Amoroso
- b Department of Pharmacy, "G. D'Annunzio", University of Chieti-Pescara , Chieti , Italy
| | - Roberto Cirilli
- c Centro Nazionale per il Controllo e la Valutazione dei Farmaci, Istituto Superiore di Sanità , Rome , Italy
| | - Atilla Akdemir
- d Computer-aided Drug Discovery Laboratory, Faculty of Pharmacy, Department of Pharmacology, Bezmialem Vakif University , Fatih, Istanbul , Turkey
| | - Andrea Angeli
- e Neurofarba Department, Section of Pharmaceutical and Nutraceutical Sciences, Università degli Studi di Firenze , Sesto Fiorentino (Florence) , Italy
| | - Claudiu T Supuran
- e Neurofarba Department, Section of Pharmaceutical and Nutraceutical Sciences, Università degli Studi di Firenze , Sesto Fiorentino (Florence) , Italy
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7
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Fu LL, Wang XC, Fu KQ, Xi JB, Chen W, Tang S, Bai ZW. Dependence of enantioseparation performance on structure of chiral selectors derived from N-cycloalkylcarbonyl chitosan. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.04.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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8
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Guglielmi P, Carradori S, Poli G, Secci D, Cirilli R, Rotondi G, Chimenti P, Petzer A, Petzer JP. Design, Synthesis, Docking Studies and Monoamine Oxidase Inhibition of a Small Library of 1-acetyl- and 1-thiocarbamoyl-3,5-diphenyl-4,5-dihydro-(1H)-pyrazoles. Molecules 2019; 24:molecules24030484. [PMID: 30700029 PMCID: PMC6384781 DOI: 10.3390/molecules24030484] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 01/24/2019] [Accepted: 01/27/2019] [Indexed: 01/30/2023] Open
Abstract
New N-acetyl/N-thiocarbamoylpyrazoline derivatives were designed and synthesized in high yields to assess their inhibitory activity and selectivity against human monoamine oxidase A and B. The most important chiral compounds were separated into their single enantiomers and tested. The impact of the substituents at N1, C3 and C5 positions as well the influence of the configuration of the C5 on the biological activity were analyzed. Bulky aromatic groups at C5 were not tolerated. p-Prenyloxyaryl moiety at C3 oriented the selectivity toward the B isoform. The results were also corroborated by molecular modelling studies providing new suggestions for the synthesis of privileged structures to serve as lead compounds for the treatment of mood disorders and neurodegenerative diseases.
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Affiliation(s)
- Paolo Guglielmi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Simone Carradori
- Department of Pharmacy, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Giulio Poli
- Department of Pharmacy, Università di Pisa, via Bonanno 6, 56126 Pisa, Italy.
| | - Daniela Secci
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Roberto Cirilli
- Centro nazionale per il controllo e la valutazione dei farmaci, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Giulia Rotondi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Paola Chimenti
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - Anél Petzer
- Pharmaceutical Chemistry, School of Pharmacy and Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom 2520, South Africa.
| | - Jacobus P Petzer
- Pharmaceutical Chemistry, School of Pharmacy and Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom 2520, South Africa.
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9
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Hysteresis of retention and enantioselectivity on amylose tris(3,5-dimethylphenylcarbamate) chiral stationary phases in mixtures of 2-propanol and methanol. J Chromatogr A 2018; 1568:149-159. [DOI: 10.1016/j.chroma.2018.07.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 07/03/2018] [Accepted: 07/06/2018] [Indexed: 11/22/2022]
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10
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Tang S, Liu JD, Chen W, Huang SH, Zhang J, Bai ZW. Performance comparison of chiral separation materials derived from N-cyclohexylcarbonyl and N-hexanoyl chitosans. J Chromatogr A 2017; 1532:112-123. [PMID: 29246422 DOI: 10.1016/j.chroma.2017.11.067] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 11/17/2017] [Accepted: 11/28/2017] [Indexed: 11/28/2022]
Abstract
Chitosan bis(phenylcarbamate)-(N-cyclohexylformamide)s and chitosan bis(phenylcarbamate)-(N-hexanamide)s were synthesized as chiral selectors for enantiomeric separation. Since two types of substituents with different structures were, respectively, introduced onto the 2-position and the 3-/6-positions of the glucose skeleton in the chitosans through a "heterogeneous" modification pathway, the enantioseparation performances of the chiral selectors could be improved. Influence of the type and position of the substituents on chiral recognition and enantioseparation abilities was studied in detail, and the structural dependence on enantioseparation performance was particularly demonstrated. It was found that methyl- and chloro-substituted chitosan bis(phenylcarbamate)-(N-hexanamide)s possessed comparable enantioseparation performances, whereas chloro-substituted chitosan bis(phenylcarbamate)-(N-cyclohexylformamide)s exhibited much more powerful chiral recognition and enantioseparation abilities than the methyl-substituted ones. Among all the prepared chiral selectors, those with the combination of the cyclohexyl group at the 2-position of the glucose skeleton in the chitosan derivatives and the chlorophenyl group at the 3-/6-positions seemed to be more preferable for enantiomeric separation. As a result, the chitosan bis(3,4-dichlorophenylcarbamate)-(N-cyclohexylformamide) possessed the best enantioseparation performance. The solvent tolerability of the prepared chiral selectors was also investigated in the present study. Compared with the classical coated-type chiral separation materials derived from cellulose/amylose derivatives, the N-cyclohexylcarbonyl and N-hexanoyl chitosans based chiral stationary phases were observed to possess more favorable solvent tolerability, thus possibly widening their applications for various practical enantioseparations.
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Affiliation(s)
- Sheng Tang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Jian-De Liu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Wei Chen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Shao-Hua Huang
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
| | - Juan Zhang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Zheng-Wu Bai
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
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Szabó ZI, Foroughbakhshfasaei M, Noszál B, Tóth G. Enantioseparation of racecadotril using polysaccharide-type chiral stationary phases in polar organic mode. Chirality 2017; 30:95-105. [DOI: 10.1002/chir.22772] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 09/13/2017] [Accepted: 09/13/2017] [Indexed: 01/11/2023]
Affiliation(s)
- Zoltán-István Szabó
- Faculty of Pharmacy; University of Medicine and Pharmacy Tîrgu Mureş; Tîrgu Mureş Romania
| | | | - Béla Noszál
- Department of Pharmaceutical Chemistry; Semmelweis University; Budapest Hungary
| | - Gergő Tóth
- Department of Pharmaceutical Chemistry; Semmelweis University; Budapest Hungary
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12
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Pierini M, Carradori S, Menta S, Secci D, Cirilli R. 3-(Phenyl-4-oxy)-5-phenyl-4,5-dihydro-(1 H )-pyrazole: A fascinating molecular framework to study the enantioseparation ability of the amylose (3,5-dimethylphenylcarbamate) chiral stationary phase. Part II. Solvophobic effects in enantiorecognition process. J Chromatogr A 2017; 1499:140-148. [DOI: 10.1016/j.chroma.2017.04.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 03/21/2017] [Accepted: 04/02/2017] [Indexed: 01/02/2023]
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