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Petrelli A, Samain E, Pradeau S, Halila S, Fort S. Efficient Conjugation of Oligosaccharides to Polymer Particles through Furan/Maleimide Diels-Alder Reaction: Application to the Capture of Carbohydrate-Binding Proteins. Chembiochem 2016; 18:206-212. [DOI: 10.1002/cbic.201600509] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Indexed: 01/07/2023]
Affiliation(s)
- Antoine Petrelli
- Université Grenoble Alpes; CERMAV; 38000 Grenoble France
- CNRS; CERMAV; 38000 Grenoble France
| | - Eric Samain
- Université Grenoble Alpes; CERMAV; 38000 Grenoble France
- CNRS; CERMAV; 38000 Grenoble France
| | - Stéphanie Pradeau
- Université Grenoble Alpes; CERMAV; 38000 Grenoble France
- CNRS; CERMAV; 38000 Grenoble France
| | - Sami Halila
- Université Grenoble Alpes; CERMAV; 38000 Grenoble France
- CNRS; CERMAV; 38000 Grenoble France
| | - Sébastien Fort
- Université Grenoble Alpes; CERMAV; 38000 Grenoble France
- CNRS; CERMAV; 38000 Grenoble France
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2
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Azab ME, Khalifa NM, Sediek AA, Sabry NM, Al-Omar MM, Amr AEGE. Synthesis and Characterization of Some New N-Glycosides of Pyridine-2,6-bis-Carboxamides Derivatives. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2016; 35:435-44. [PMID: 27556782 DOI: 10.1080/15257770.2016.1202962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A series of novel pyridine-bridged 2,6-bis-carboxamide N-β-glycosides and Schiff's bases has been prepared starting from 2,6-bis-carboxamide pyridine hydrazide, which on treatment with appropriate monosaccharides, aromatic or heterocyclic aldehydes, and indoline-2,3-dione derivatives afforded the corresponding sugar hydrazones and pyridine-bridged 2,6-bis-carboxamide Schiff's bases.
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Affiliation(s)
- Mohammed E Azab
- a Chemistry Department, Faculty of Science , Ain Shams University , Abbassia , Cairo , Egypt
| | - Nagy M Khalifa
- b Pharmaceutical Chemistry Department, Drug Exploration & Development Chair, College of Pharmacy , King Saud University , Riyadh , Saudi Arabia.,c Therapeutical Chemistry Department , National Research Centre , Dokki , Cairo , Egypt
| | - Ashraf A Sediek
- d Chemical Industries Division , National Research Centre , Dokki , Cairo , Egypt.,e Chemistry Department, Faculty of Sciences and Arts, Al-Kamil Branch , University of Jeddah , Jeddah , Saudi Arabia
| | - Nermein M Sabry
- d Chemical Industries Division , National Research Centre , Dokki , Cairo , Egypt
| | - Mohamed M Al-Omar
- b Pharmaceutical Chemistry Department, Drug Exploration & Development Chair, College of Pharmacy , King Saud University , Riyadh , Saudi Arabia
| | - Abd El-Galil E Amr
- b Pharmaceutical Chemistry Department, Drug Exploration & Development Chair, College of Pharmacy , King Saud University , Riyadh , Saudi Arabia.,d Chemical Industries Division , National Research Centre , Dokki , Cairo , Egypt
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3
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El-Shamy IE, Abdel-Mohsen A, Alsheikh AA, Fouda MM, Al-Deyab SS, El-Hashash MA. Synthesis and antimicrobial activities of S-nucleosides of 4-mesitylphthalazine-1-thiol and some new selenium-containing nucleoside analogues. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.01.103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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4
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Yuan X, Kou Y, Yu L, Zhang ZX, Xue W. 2′-Cyanoethyl thioglycosides: effective nucleophiles for synthesis of (hetero)aryl thioglycosides under the catalysis of Cu. Org Chem Front 2015. [DOI: 10.1039/c5qo00276a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2′-Cyanoethyl thioglycosides are designed and synthesized, which are demonstrated to function as powerful nucleophiles to a wide variety of organic iodides.
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Affiliation(s)
| | - Yazhen Kou
- School of Pharmacy
- Lanzhou University
- Lanzhou
- China
| | - Lan Yu
- School of Pharmacy
- Lanzhou University
- Lanzhou
- China
| | | | - Weihua Xue
- School of Pharmacy
- Lanzhou University
- Lanzhou
- China
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5
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Banasiak A, Ibatullin FM, Brumer H, Mellerowicz EJ. Glycoside Hydrolase Activities in Cell Walls of Sclerenchyma Cells in the Inflorescence Stems of Arabidopsis thaliana Visualized in Situ. PLANTS (BASEL, SWITZERLAND) 2014; 3:513-25. [PMID: 27135517 PMCID: PMC4844284 DOI: 10.3390/plants3040513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 10/29/2014] [Accepted: 10/30/2014] [Indexed: 11/16/2022]
Abstract
Techniques for in situ localization of gene products provide indispensable information for understanding biological function. In the case of enzymes, biological function is directly related to activity, and therefore, knowledge of activity patterns is central to understanding the molecular controls of plant development. We have previously developed a novel type of fluorogenic substrate for revealing glycoside hydrolase activity in planta, based on resorufin β-glycosides Here, we explore a wider range of such substrates to visualize glycoside hydrolase activities in Arabidopsis inflorescence stems in real time, especially highlighting distinct distribution patterns of these activities in the secondary cell walls of sclerenchyma cells. The results demonstrate that β-1,4-glucosidase, β-1,4-glucanase and β-1,4-galactosidase activities accompany secondary wall deposition. In contrast, xyloglucanase activity follows a different pattern, with the highest signal observed in mature cells, concentrated in the middle lamella. These data further the understanding of the process of cell wall deposition and function in sclerenchymatic tissues of plants.
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Affiliation(s)
- Alicja Banasiak
- Institute of Experimental Biology, University of Wroclaw, 50-328 Wroclaw, Poland.
| | - Farid M Ibatullin
- Division of Glycoscience, School of Biotechnology, Royal Institute of Technology (KTH), AlbaNova University Centre, 106 91 Stockholm, Sweden.
- Biophysics Division, Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute, Gatchina 188300, Russia.
| | - Harry Brumer
- Division of Glycoscience, School of Biotechnology, Royal Institute of Technology (KTH), AlbaNova University Centre, 106 91 Stockholm, Sweden.
- Michael Smith Laboratories, University of British Columbia, 2185 East Mall, Vancouver, BC V6T 1Z1, Canada.
- Department of Chemistry, University of British Columbia, 2185 East Mall, Vancouver, BC V6T 1Z1, Canada.
| | - Ewa J Mellerowicz
- Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umea Plant Science Centre, 90183 Umea, Sweden.
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Dilmaghani KA, Pur FN, Jazani NH, Alavi A, Niknam Z, Mirfakhraee F. Synthesis of New 1,2,4-Triazole-5-Thiones and Their Thioglycoside Derivatives as Potential Antibacterial Agents. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2013.789877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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7
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El-Sayed WA, Metwally MA, Nada DS, Mohamed AA, Abdel-Rahman AAH. Synthesis and Antimicrobial Activity of New Substituted 5-(Pyridine-3-yl)-1,3,4-Thiadiazoles and Their Sugar Derivatives. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.901] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wael A. El-Sayed
- Department of Photochemistry; National Research Centre; Cairo; Egypt
| | | | - Doaa S. Nada
- Department of Chemistry; Faculty of Science, Menoufia University; Shebin El-Koam; Egypt
| | - Asem A. Mohamed
- Chemistry of Natural and Microbial Products Dept.; National Research Centre; Dokki; Cairo; Egypt
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Terauchi T, Koyama Y, Machida S, Kasumi T, Komba S. Synthesis of Novel Thioglycoside Analogs as the Substrates and/or the Inhibitors of Cellobiohydrolases. J Appl Glycosci (1999) 2011. [DOI: 10.5458/jag.jag.jag-2011_012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
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9
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Ogata M, Kameshima Y, Hattori T, Michishita K, Suzuki T, Kawagishi H, Totani K, Hiratake J, Usui T. Lactosylamidine-based affinity purification for cellulolytic enzymes EG I and CBH I from Hypocrea jecorina and their properties. Carbohydr Res 2010; 345:2623-9. [DOI: 10.1016/j.carres.2010.10.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Revised: 10/15/2010] [Accepted: 10/15/2010] [Indexed: 10/18/2022]
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10
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Abbas HAS, Hafez HN, El-Gazzar ARBA. Synthesis, in vitro antimicrobial and in vivo antitumor evaluation of novel pyrimidoquinolines and its nucleoside derivatives. Eur J Med Chem 2010; 46:21-30. [PMID: 21074295 DOI: 10.1016/j.ejmech.2010.09.071] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 08/18/2010] [Accepted: 09/30/2010] [Indexed: 11/26/2022]
Abstract
Seven series of pyrimidoquinoline derivatives have been synthesized, tetrazolo[4',3':-1,2]pyrimido[4,5-b]quinoline (3), 2-aminopyrimido[4,5-b]quinoline (4), triazolo[4',3':1,2]-pyrimidoquinoline (5a,b, 10), imidazolo[3',2':1,2]pyrimido[4,5-b]-quinoline (8a,b), 6-chloro-2-methylthiopyrimido[4,5-b]quinoline (12), acetylated nucleosides (16, 17a,b) and deacetylated nucleosides (18, 19a,b). Some of the novel pyrimidoquinoline derivatives possess highly activity toward the bacteria and fungi species. The new quinolines derivatives were evaluated for their anticancer activity toward human cancer cell lines by the National Cancer Institute (NCI). Most of them had excellent growth inhibition activity, having LD(50) values in the low micromolar to nanomolar concentration range.
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Affiliation(s)
- Hebat-Allah S Abbas
- Photochemistry Department, National Research Centre, 12622 Dokki, Cairo, Egypt.
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11
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Abbas HAS, El Sayed WA, Fathy NM. Synthesis and antitumor activity of new dihydropyridine thioglycosides and their corresponding dehydrogenated forms. Eur J Med Chem 2009; 45:973-82. [PMID: 20004044 DOI: 10.1016/j.ejmech.2009.11.039] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2009] [Revised: 11/13/2009] [Accepted: 11/20/2009] [Indexed: 11/17/2022]
Abstract
A number of a new pyridine thioglycosides were synthesized via reaction of piperidinium salts of dihydropyridinethiones with 2,3,4,6-tetra-O-acetyl-alpha-D-gluco- and galactopyranosyl bromide. The antitumor activities of the synthesized compounds were evaluated utilizing two different human cell lines. Some of the tested compounds showed high inhibition of human cell lines. The detailed synthesis, spectroscopic data and antitumor activities for the synthesized compounds were reported.
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Affiliation(s)
- Hebat-Allah S Abbas
- Photochemistry Department, National research center, Dokki, 12622 Cairo, Egypt.
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Manzano VE, Uhrig ML, Varela O. Straightforward synthesis of thiodisaccharides by ring-opening of sugar epoxides. J Org Chem 2008; 73:7224-35. [PMID: 18717587 DOI: 10.1021/jo8012397] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
3,4-Anhydro hexopyranosides have been prepared by diastereoselective epoxidation of derivatives of 2-propyl 3,4-dideoxy-alpha-D-erythro-hex-3-enopyranoside (5), selectively protected at HO-2 and HO-6. The allylic group at C-2, in 5 and derivatives, plays a critical role in the facial selectivity of the epoxidation reaction. Thus, the free HO-2 in 3 (the 6-O-acetyl derivative of 5) directs the attack of m-chloroperbenzoic acid from the more hindered alpha face of the molecule to give 2-propyl 6-O-acetyl-3,4-anhydro-alpha-D-allopyranoside (7) accompanied by the beta epoxide 6 as a very minor product. Reverse diastereoselectivity has been obtained when the HO-2 in 3 was substituted by a bulky tert-butyldimethylsilyl (TBS) group. In this case, the major isomer was the 2-O-TBS derivative of 6 (alpha-D-galacto configuration). The ring-opening of sugar epoxides by nucleophilic per-O-acetyl-1-thio-beta-D-glucopyranose (11) was employed as a convenient approach to the synthesis of (1-->3)- and (1-->4)-thiodisaccharides. For example, ring-opening of the oxirane 7 by 11 led to the expected regioisomeric per-O-acetyl thiodisaccharides beta-D-Glc-S-(1-->3)-4-thio-alpha-D-Glc-O-iPr (12) and beta-D-Glc-S-(1-->4)-4-thio-alpha-D-Gul-O-iPr (13). Regioselectivity in the construction of the (1-->4)-thioglycosidic linkage could be achieved by hindering C-3 of the 3,4-anhydro sugar with a bulky silyloxy group at the vicinal C-2. For instance, coupling of the 2-O-TBS derivative of 7 with 11 led regioselectively to the protected thiodisaccharide beta-D-Glc-S-(1-->4)-4-thio-alpha-D-Glc-O-iPr (27). The utility of the approach was demonstrated through the synthesis of sulfur-linked analogues of naturally occurring (laminarabiose and cellobiose) and non-natural disaccharides (i.e., beta-D-Glc-(1-->4)-alpha-D-Gul).
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Affiliation(s)
- Verónica E Manzano
- CIHIDECAR-CONICET, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
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El Ashry ESH, Awad LF, Abdel Hamid HM, Atta AI. Microwave Irradiation for Accelerating the Synthesis of Thioglycosides. SYNTHETIC COMMUN 2007. [DOI: 10.1080/00397910600767314] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- E. S. H. El Ashry
- a Chemistry Department , Faculty of Science, Alexandria University , Alexandria, Egypt
| | - L. F. Awad
- a Chemistry Department , Faculty of Science, Alexandria University , Alexandria, Egypt
| | - H. M. Abdel Hamid
- a Chemistry Department , Faculty of Science, Alexandria University , Alexandria, Egypt
| | - A. I. Atta
- a Chemistry Department , Faculty of Science, Alexandria University , Alexandria, Egypt
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Becker B, Thimm J, Thiem J. Synthesis of Functionalized Thiodisaccharides by Conjugate Addition. J Carbohydr Chem 2006. [DOI: 10.1080/07328309608006505] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Bernd Becker
- a Institut für Organische Chemie, Martin-Luther-King-Platz , 6, D-20146, Hamburg, Germany
| | - Julian Thimm
- a Institut für Organische Chemie, Martin-Luther-King-Platz , 6, D-20146, Hamburg, Germany
| | - Joachim Thiem
- a Institut für Organische Chemie, Martin-Luther-King-Platz , 6, D-20146, Hamburg, Germany
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15
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Unusual anomeric rearrangement of para-nitrobenzoylxanthate d-glycosides: a new direct stereoselective access to α-thioglycosides from pyranose sugars. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.03.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Müllegger J, Chen HM, Warren RAJ, Withers SG. Glycosylation of a Neoglycoprotein by Using Glycosynthase and Thioglycoligase Approaches: The Generation of a Thioglycoprotein. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200503900] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Müllegger J, Chen HM, Warren RAJ, Withers SG. Glycosylation of a Neoglycoprotein by Using Glycosynthase and Thioglycoligase Approaches: The Generation of a Thioglycoprotein. Angew Chem Int Ed Engl 2006; 45:2585-8. [PMID: 16528765 DOI: 10.1002/anie.200503900] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Johannes Müllegger
- Protein Engineering Network of Centres of Excellence, Department of Chemistry, University of British Columbia, Vancouver, B. C. V6T 1Z1, Canada
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Stick RV, Stubbs KA. From glycoside hydrolases to thioglycoligases: the synthesis of thioglycosides. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2004.12.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Kroutil JV, Cerný M, Trnka TV, Budesínský M. Synthesis of S-linked glucosaminyl-4-thiohex-2-enopyranosides via allylic SN2' substitution of a tosylhexenose. Carbohydr Res 2001; 334:153-8. [PMID: 11502271 DOI: 10.1016/s0008-6215(01)00175-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Treatment of 2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-1-thio-beta-D-glucopyranose with 1,6-anhydro-3,4-dideoxy-2-O-p-toluenesulfonyl-beta-D-erythro-hex-3-enopyranose gave 2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-beta-D-glucopyranosyl-(1-->4)-1,6-anhydro-2,3-dideoxy-4-thio-beta-D-erythro-hex-2-enopyranose in 86% yield. Its 1,6-anhydride bond was cleaved with methanol to give a mixture of methyl glycosides (alpha/beta approximately 5:1), from which the alpha anomer was separated by crystallization and converted into its 6-acetate, 6-methanesulfonate, or deacetylated to obtain the corresponding free methyl thiodisaccharide. The structure of the new compounds was confirmed by 1H and 13C NMR spectra.
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Affiliation(s)
- J V Kroutil
- Department of Organic Chemistry, Charles University, Cz-128 40 2, Prague, Czech Republic
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Xu W, Springfield SA, Koh JT. Highly efficient synthesis of 1-thioglycosides in solution and solid phase using iminophosphorane bases. Carbohydr Res 2000; 325:169-76. [PMID: 10795807 DOI: 10.1016/s0008-6215(99)00327-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Disaccharides of 1-thioglycosides, an important class of glycomimics, can be synthesized by direct S-alkylation in exceptionally high yields when iminophosphorane bases are employed. The reaction conditions employed appear to be general and stereospecific. Axial and equatorial 4-triflates and primary tosylates of alkyl pyranosides provided excellent yields of thio-disaccharides without substantial elimination products. The iminophosphorane bases also proved to be useful in solid support-bound couplings of thioglycosides though with lower efficiency.
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Affiliation(s)
- W Xu
- The Department of Chemistry and Biochemistry, University of Delaware, Newark 19716, USA
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Fujihira T, Takido T, Seno M. Synthesis of alkyl and arylthioglycosides and thiodisaccharides via thioiminium salts in a two-phase system. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s1381-1169(98)00082-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Piyachomkwan K, Penner MH. Aryl thioglycoside-based affinity purification of exo-acting cellulases. Anal Biochem 1998; 255:223-35. [PMID: 9451508 DOI: 10.1006/abio.1997.2390] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The influence of ligand-coupling chemistry and mobile-phase composition on the interaction of exo-acting cellulases with an immobilized complementary ligand was investigated. p-Aminophenyl 1-thio-beta-D-cellobioside (APTC) was used as a representative affinity ligand to which exo-acting cellulases (cellobiohydrolases, CBHs) preferentially bind. A "crude" cellulase preparation from the fungus Trichoderma reesei served as an enzyme source. The adsorption properties of the two principal exo-acting CBHs in this preparation, CBH I and CBH II, are shown to be distinctly different under several scenarios. Their relative affinities, based on column elution behavior and partition equilibrium experiments, are shown to be highly dependent on the functional groups employed for ligand coupling, the extent of functional group hydrolysis, the composition of the mobile phase, and the inherent nature of the enzymes. The dependency on the chemistry of the supporting matrix was illustrated using agarose supports containing cyanate ester, N-hydroxy-succinimide, and epoxy functional groups. When compared under apparent optimal conditions, the affinity of CBH II for immobilized APTC was approximately 10-fold that of CBH I. However, selective adsorption of CBH I or CBH II can be achieved by adjusting experimental parameters.
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Affiliation(s)
- K Piyachomkwan
- Department of Food Science and Technology, Oregon State University, Corvallis 97331-6602, USA
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p-Aminophenyl 1-thio-β-d-cellobioside: Synthesis and application in affinity chromatography of exo-type cellulases. Carbohydr Res 1997. [DOI: 10.1016/s0008-6215(97)00170-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Aguilera B, Fernández-Mayoralas A, Jaramillo C. Use of cyclic sulfamidates derived from D-allosamine in nucleophilic displacements: Scope and limitations. Tetrahedron 1997. [DOI: 10.1016/s0040-4020(97)00246-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Izumi M, Tsuruta O, Harayama S, Hashimoto H. Synthesis of 5-Thio-l-fucose-Containing Disaccharides, as Sequence-Specific Inhibitors, and 2‘-Fucosyllactose, as a Substrate of α-l-Fucosidases. J Org Chem 1997. [DOI: 10.1021/jo961725h] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masayuki Izumi
- Department of Life Science, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan
| | - Osamu Tsuruta
- Department of Life Science, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan
| | - Satoru Harayama
- Department of Life Science, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan
| | - Hironobu Hashimoto
- Department of Life Science, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan
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29
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Thiooligosaccharides in glycobiology. GLYCOSCIENCE SYNTHESIS OF SUBSTRATE ANALOGS AND MIMETICS 1997. [DOI: 10.1007/bfb0119254] [Citation(s) in RCA: 131] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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30
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Wang LX, Lee YC. Stereoselective synthesis of N-acetyl thiochitooligosaccharides. Different behaviours of methyl N-acetyl-α- and -β-thiochitobiosides during acetolysis. ACTA ACUST UNITED AC 1996. [DOI: 10.1039/p19960000581] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Khaled MY, McNair H, Polite L, Pauls R. Analytical separation ofTrichoderma Reesei cellulases by Capillary Zone Electrophoresis. ACTA ACUST UNITED AC 1995. [DOI: 10.1002/mcs.1220070416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Andrews JS, Pinto BM. Synthesis of a thio analogue of n-propyl kojibioside, a potential glucosidase inhibitor. Carbohydr Res 1995; 270:51-62. [PMID: 7627988 DOI: 10.1016/0008-6215(95)00014-k] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The disaccharide alpha-D-Glc p-(1-S-2)-beta-D-Glc p-(1-OPr) 1, a thio analogue of alpha-D-Glc p-(1 --> 2)-alpha-D-Glc p-(1-OPr)(n-propyl kojibioside) in which the inter-glycosidic oxygen atom is replaced by sulfur, has been synthesized for evaluation as a potential glucosidase inhibitor. Glycosylation of the 2-thiol glucopyranosyl acceptor 4 with the trichloroacetimidate of 2,3,4,6-tetra-O-benzyl-alpha-D-glucopyranose 5 gave the alpha-linked disaccharide 6 stereoselectively. Deprotection was performed by hydrogenolysis in the presence of Pd/C to give 1 as the beta-n-propyl glycoside. Glycosylation of the thiol 4 with the trichloroacetimidate of 2,3,4,6-tetra-O-acetyl-alpha-D-glucopyranose 8 gave a 1:2.3 mixture if the alpha and beta disaccharides (9 and 10); evidence is presented for the occurrence of the orthoester 11, as an intermediate in the formation of the beta-disaccharide.
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Affiliation(s)
- J S Andrews
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
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Comber RN, Friedrich JD, Dunshee DA, Petty SL, Secrist JA. Alpha-(1-->2)-, and alpha-(1-->3)-, and alpha-(1-->6)-linked thioglycosidic disaccharides: syntheses and anti-HIV testing of thiokojibiose octaacetate, thionigerose, and thioisomaltose. Carbohydr Res 1994; 262:245-55. [PMID: 7982217 DOI: 10.1016/0008-6215(94)84182-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The syntheses of several alpha-linked thioglycosidic disaccharides are described, including thiokojibiose octaacetate (1), thionigerose (2), and thioisomaltose (3). The title compounds were synthesized by coupling 2,3,4,6-tetra-O-acetyl-1.5-acetyl-1-thio-alpha-D-glucopyranose (4) with either 1,3,4,6-tetra-O-acetyl-2-O-trifluoromethylsulfonyl-beta-D-manno pyr anose (7), 1,2:5,6-di-O-isopropylidene-3-O-trifluoromethylsulfonyl-alpha-D-++ +allofuranose (15), or methyl 2,3,4-tri-O-acetyl-6-deoxy-6-iodo-alpha-D-glucopyranoside (17), respectively. Thiokojibiose octaacetate in turn was converted to 3,4,6-tri-O-acetyl-2-S-(2,3,4,6-tetra-O-acetyl-alpha-D-glucopyranosyl)-2 -thio-alpha-D-glucopyranosyl bromide (9), which was used to obtain several related disaccharides and one trisaccharide. All of the compounds, including thiomaltose and thiotrehalose, which were resynthesized by known methods, were tested for their anti-HIV activity in either CEM or MT-2 cells. Anti-HIV activity was noted only with thiokojibiose octaacetate and its 1-thio analogue (14), which had IC50 values of 51 and 48 micrograms/mL in CEM cells, respectively.
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Affiliation(s)
- R N Comber
- Organic Chemistry Department, Southern Research Institute, Birmingham, Alabama 35255-5305
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Defaye J, Guillot JM. A convenient synthesis for anomeric 2-thioglucobioses, 2-thiokojibiose and 2-thiosophorose. Carbohydr Res 1994; 253:185-94. [PMID: 8156547 DOI: 10.1016/0008-6215(94)80064-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
2-S-alpha-D-Glucopyranosyl-2-thio-D-glucopyranose (2-thiokojibiose, 8) and 2-S-beta-D-glucopyranosyl-2-thio-D-glucopyranose (2-thiosophorose, 14) were conveniently prepared by SN2 reaction of the corresponding anomers of 2,3,4,6-tetra-O-acetyl-1-thio-D-glucopyranose with 1,3,4,6-tetra-O-acetyl-2-O-tri-flyl-beta-D-mannopyranose, followed by a deprotection sequence for the anomeric acetate involving conversion into the 1-propenyl glycosides. Alkaline O-deacetylation was followed by smooth hydrolysis of the propenyl group at pH approximately 2.
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Affiliation(s)
- J Defaye
- CNRS, Département de Recherche Fondamentale sur la Matière Condensée/SESAM, Centre d'Etudes de Grenoble, France
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Schou C, Rasmussen G, Schulein M, Henrissar B, Driguez H. 4-Thiocellooligosaccharides : Their Synthesis and use as Inhibitors of Cellulases. J Carbohydr Chem 1993. [DOI: 10.1080/07328309308019004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Karplus-type equation for vicinal carbon-proton coupling constants for the CSCH pathway in 1-thioglycosides. Carbohydr Res 1992. [DOI: 10.1016/s0008-6215(00)90572-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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