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Varga I, Goldschmidt Gőz V, Pintér I, Csámpai A, Perczel A. Acetyl group for proper protection of β-sugar-amino acids used in SPPS. Amino Acids 2023; 55:969-979. [PMID: 37340192 PMCID: PMC10514111 DOI: 10.1007/s00726-023-03278-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/09/2023] [Indexed: 06/22/2023]
Abstract
The synthesis of D-glucosamine-1-carboxylic acid based β-sugar amino acids (β-SAAs) is typically performed in nine consecutive steps via an inefficient OAc → Br → CN conversion protocol with low overall yield. Here, we present the improved and more efficient synthesis of both Fmoc-GlcAPC-OH and Fmoc-GlcAPC(Ac)-OH, β-SAAs consisting of only 4-5 synthetic steps. Their active ester and amide bond formation with glycine methyl ester (H-Gly-OMe) was completed and monitored by 1H NMR. The stability of the pyranoid OHs protecting the acetyl groups was investigated under three different Fmoc cleavage conditions and was found to be satisfactory even at high piperidine concentration (e.g. 40%). We designed a SPPS protocol using Fmoc-GlcAPC(Ac)-OH to produce model peptides Gly-β-SAA-Gly as well as Gly-β-SAA-β-SAA-Gly with high coupling efficiency. The products were deacetylated using the Zemplén method, which allows the hydrophilicity of a building block and/or chimera to be fine-tuned, even after the polypeptide chain has already been synthesized.
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Affiliation(s)
- István Varga
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd University, Pázmány P. Stny. 1/A, Budapest, 1117, Hungary
- György Hevesy Doctoral School of Chemistry, Eötvös Loránd University, Budapest, Hungary
| | | | - István Pintér
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd University, Pázmány P. Stny. 1/A, Budapest, 1117, Hungary
| | - Antal Csámpai
- Organic Chemistry Department, Eötvös Loránd University, Pázmány P. Stny. 1/A, Budapest, 1117, Hungary
| | - András Perczel
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd University, Pázmány P. Stny. 1/A, Budapest, 1117, Hungary.
- ELKH-ELTE Protein Modeling Research Group, Pázmány P. Stny. 1/A, Budapest, 1117, Hungary.
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2
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Tvrdoňová M, Borovská B, Salayová A, Rončák R, Michalčin P, Bednáriková Z, Gažová Z. Design and synthesis of novel carbohydrate-amino acid hybrids and their antioxidant and anti-β-amyloid aggregation activity. Bioorg Chem 2023; 137:106636. [PMID: 37290376 DOI: 10.1016/j.bioorg.2023.106636] [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: 04/21/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/10/2023]
Abstract
Herein we report the synthesis of new furanoid sugar amino acids and thioureas, prepared by coupling aromatic amino acids and dipeptides with isothiocyanato- functionalized ribofuranose ring. Since carbohydrate-derived structures possess many biological activities, synthesized compounds were evaluated as anti-amyloid and antioxidant agents. The anti-amyloid activity of the studied compounds was evaluated based on their potential to destroy amyloid fibrils of intrinsically disordered Aβ40 peptide and globular hen egg-white (HEW) lysozyme. The destructive efficiency of the compounds differed between the studied peptides. While the destruction activity of the compounds on the HEW lysozyme amyloid fibrils was negligible, the effect on Aβ40 amyloid fibrils was significantly higher. Furanoid sugar α-amino acid 1 and its dipeptide derivatives 8 (Trp-Trp) and 11 (Trp-Tyr) were the most potent anti-Aβ fibrils compounds. The antioxidant properties of synthesized compounds were estimated by three complementary in vitro assays (DPPH, ABTS, and FRAP). The ABTS assay was the most sensitive for assessing the radical scavenging activity of all tested compounds compared to the DPPH test. Significant antioxidant activity was detected for compounds in the group of aromatic amino acids depending on the present amino acid, with the highest activity in the case of dipeptides 11 and 12 containing the Tyr and Trp moiety. Regarding the FRAP assay, the best reducing antioxidant potential revealed Trp-containing compounds 5, 10, and 12.
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Affiliation(s)
- Monika Tvrdoňová
- Department of Organic Chemistry, Institute of Chemical Sciences, P.J. Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia.
| | - Barbora Borovská
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
| | - Aneta Salayová
- Department of Chemistry, Biochemistry and Biophysics, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia
| | - Róbert Rončák
- Department of Organic Chemistry, Institute of Chemical Sciences, P.J. Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia
| | - Peter Michalčin
- Department of Organic Chemistry, Institute of Chemical Sciences, P.J. Šafárik University, Moyzesova 11, 040 01 Košice, Slovakia
| | - Zuzana Bednáriková
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
| | - Zuzana Gažová
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
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3
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Qian J, Chen ZH, Liu Y, Li Y, Li Q, Huang SL, Wang H. Synthesis of allenyl-B(MIDA) via hydrazination/fragmentation reaction of B(MIDA)-propargylic alcohol. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.04.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Wang J, Zhang Y, Lu Q, Xing D, Zhang R. Exploring Carbohydrates for Therapeutics: A Review on Future Directions. Front Pharmacol 2021; 12:756724. [PMID: 34867374 PMCID: PMC8634948 DOI: 10.3389/fphar.2021.756724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/08/2021] [Indexed: 12/02/2022] Open
Abstract
Carbohydrates are important components of foods and essential biomolecules performing various biological functions in living systems. A variety of biological activities besides providing fuel have been explored and reported for carbohydrates. Some carbohydrates have been approved for the treatment of various diseases; however, carbohydrate-containing drugs represent only a small portion of all of the drugs on the market. This review summarizes several potential development directions of carbohydrate-containing therapeutics, with the hope of promoting the application of carbohydrates in drug development.
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Affiliation(s)
- Jie Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,Cancer Institute, Qingdao University, Qingdao, China
| | - Yukun Zhang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,Cancer Institute, Qingdao University, Qingdao, China
| | - Qi Lu
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,Cancer Institute, Qingdao University, Qingdao, China
| | - Dongming Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,Cancer Institute, Qingdao University, Qingdao, China.,School of Life Sciences, Tsinghua University, Beijing, China
| | - Renshuai Zhang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China.,Cancer Institute, Qingdao University, Qingdao, China
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5
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Sousa CEA, Alves MJ. Synthesis of novel sugar derived aziridines, as starting materials giving access to sugar amino acid derivatives. Amino Acids 2021; 53:1123-1134. [PMID: 34120241 DOI: 10.1007/s00726-021-03017-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 06/04/2021] [Indexed: 11/24/2022]
Abstract
D-Erythrosyl aziridines were obtained from D-erythrosyl triazoles either by photolysis or through diazirine intermediates. These were found to undergo rich, high yielding chemistry by reaction with protic acids (HCl, BiI3/H2O and trifluoroacetic acid) leading to two types of furanoid sugar α-amino acids, and polyhydroxylprolines. Based on experimental evidence, reaction mechanisms have been proposed for the syntheses.
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Affiliation(s)
- Cristina E A Sousa
- Department of Chemistry, University of Minho, Gualtar, 4710-057, Braga, Portugal
| | - Maria J Alves
- Department of Chemistry, University of Minho, Gualtar, 4710-057, Braga, Portugal.
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7
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Tyrikos-Ergas T, Fittolani G, Seeberger PH, Delbianco M. Structural Studies Using Unnatural Oligosaccharides: Toward Sugar Foldamers. Biomacromolecules 2019; 21:18-29. [DOI: 10.1021/acs.biomac.9b01090] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Theodore Tyrikos-Ergas
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Giulio Fittolani
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Peter H. Seeberger
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Martina Delbianco
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
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8
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Dong GL, Fang WH, Zhang L, Zhang J. In situ generated pyroglutamate bridged polyoxotitaniums with strong circular dichroism signal. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.01.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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9
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Bensalah FO, Bil A, Wittine K, Bellahouel S, Lesur D, Markovic D, Laclef S. Solvent- and catalyst-free transamidations of unprotected glycosyl carboxamides. Org Biomol Chem 2019; 17:9425-9429. [DOI: 10.1039/c9ob02096a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New green and atom efficient transamidation reactions of various glycosyl carboxamides with primary and secondary amines are described.
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Affiliation(s)
- Fouzia Ouadah Bensalah
- Laboratoire de Glycochimie
- des Antimicrobiens et des Agroressources (LG2A) UMR CNRS 7378 – Institut de Chimie de Picardie FR 3085
- Université de Picardie Jules Verne
- FR-80039 Amiens Cedex
- France
| | - Abed Bil
- Laboratoire de Glycochimie
- des Antimicrobiens et des Agroressources (LG2A) UMR CNRS 7378 – Institut de Chimie de Picardie FR 3085
- Université de Picardie Jules Verne
- FR-80039 Amiens Cedex
- France
| | - Karlo Wittine
- University of Rijeka
- Department of Biotechnology
- 51000 Rijeka
- Croatia
| | - Salima Bellahouel
- Université Oran1
- Laboratoire de Synthèse Organique Appliquée LSOA
- Oran 31000
- Algérie
| | - David Lesur
- Laboratoire de Glycochimie
- des Antimicrobiens et des Agroressources (LG2A) UMR CNRS 7378 – Institut de Chimie de Picardie FR 3085
- Université de Picardie Jules Verne
- FR-80039 Amiens Cedex
- France
| | - Dean Markovic
- University of Rijeka
- Department of Biotechnology
- 51000 Rijeka
- Croatia
| | - Sylvain Laclef
- Laboratoire de Glycochimie
- des Antimicrobiens et des Agroressources (LG2A) UMR CNRS 7378 – Institut de Chimie de Picardie FR 3085
- Université de Picardie Jules Verne
- FR-80039 Amiens Cedex
- France
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10
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Tian GZ, Hu J, Zhang HX, Rademacher C, Zou XP, Zheng HN, Xu F, Wang XL, Linker T, Yin J. Synthesis and conformational analysis of linear homo- and heterooligomers from novel 2-C-branched sugar amino acids (SAAs). Sci Rep 2018; 8:6625. [PMID: 29700416 PMCID: PMC5919921 DOI: 10.1038/s41598-018-24927-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/05/2018] [Indexed: 11/09/2022] Open
Abstract
Sugar amino acids (SAAs), as biologically interesting structures bearing both amino and carboxylic acid functional groups represent an important class of multifunctional building blocks. In this study, we develop an easy access to novel SAAs in only three steps starting from nitro compounds in high yields in analytically pure form, easily available by ceric (IV) mediated radical additions. Such novel SAAs have been applied in the assembly of total nine carbopeptoids with the form of linear homo- and heterooligomers for the structural investigations employing circular dichroism (CD) spectroscopy, which suggest that the carbopeptoids emerge a well-extended, left (or right)-handed conformation similar to polyproline II (PPII) helices. NMR studies also clearly demonstrated the presence of ordered secondary structural elements. 2D-ROESY spectra were acquired to identify i+1 NH ↔ i C 1 H, i C 2 H correlations which support the conformational analysis of tetramers by CD spectroscopy. These findings provide interesting information of SAAs and their oligomers as potential scaffolds for discovering new drugs and materials.
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Affiliation(s)
- Guang-Zong Tian
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu, 214122, P.R. China
| | - Jing Hu
- Wuxi School of Medicine, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu, 214122, P.R. China.
| | - Heng-Xi Zhang
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, Potsdam, 14476, Germany
| | - Christoph Rademacher
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, Potsdam, 14476, Germany
| | - Xiao-Peng Zou
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu, 214122, P.R. China
| | - Hong-Ning Zheng
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu, 214122, P.R. China
| | - Fei Xu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu, 214122, P.R. China
| | - Xiao-Li Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu, 214122, P.R. China
| | - Torsten Linker
- Department of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam, 14476, Germany
| | - Jian Yin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu, 214122, P.R. China.
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11
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Cai D, Xun C, Tang F, Tian X, Yang L, Ding K, Li W, Le Z, Huang W. Glycoconjugate probes containing a core-fucosylated N-glycan trisaccharide for fucose lectin identification and purification. Carbohydr Res 2017; 449:143-152. [DOI: 10.1016/j.carres.2017.07.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/27/2017] [Accepted: 07/27/2017] [Indexed: 12/12/2022]
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12
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Hou Z, Liu Y, Zhang XX, Chang XW, Cheng MS, Guo C. Synthesis of glucuronic acid derivatives via the efficient and selective removal of a C6 methyl group. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.12.055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Richard M, Chapleur Y, Pellegrini-Moïse N. Spiro sugar-isoxazolidine scaffold as useful polyfunctional building block for peptidomimetics design. Carbohydr Res 2016; 422:24-33. [DOI: 10.1016/j.carres.2016.01.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/15/2016] [Accepted: 01/16/2016] [Indexed: 12/23/2022]
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14
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Banerjee A, Senthilkumar S, Baskaran S. Benzylidene Acetal Protecting Group as Carboxylic Acid Surrogate: Synthesis of Functionalized Uronic Acids and Sugar Amino Acids. Chemistry 2015; 22:902-6. [PMID: 26572799 DOI: 10.1002/chem.201503998] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Indexed: 02/05/2023]
Abstract
Direct oxidation of the 4,6-O-benzylidene acetal protecting group to C-6 carboxylic acid has been developed that provides an easy access to a wide range of biologically important and synthetically challenging uronic acid and sugar amino acid derivatives in good yields. The RuCl3 -NaIO4 -mediated oxidative cleavage method eliminates protection and deprotection steps and the reaction takes place under mild conditions. The dual role of the benzylidene acetal, as a protecting group and source of carboxylic acid, was exploited in the efficient synthesis of six-carbon sialic acid analogues and disaccharides bearing uronic acids, including glycosaminoglycan analogues.
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Affiliation(s)
- Amit Banerjee
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, India
| | | | - Sundarababu Baskaran
- Department of Chemistry, Indian Institute of Technology Madras, Chennai-, 600036, India.
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