151
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Rowan AS, Nicely NI, Cochrane N, Wlassoff WA, Claiborne A, Hamilton CJ. Nucleoside triphosphate mimicry: a sugar triazolyl nucleoside as an ATP-competitive inhibitor of B. anthracis pantothenate kinase. Org Biomol Chem 2009; 7:4029-36. [PMID: 19763307 PMCID: PMC6074028 DOI: 10.1039/b909729e] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of a library of nucleoside triphosphate mimetics is described where the Mg(2+) chelated triphosphate sidechain is replaced by an uncharged methylene-triazole linked monosaccharide sidechain. The compounds have been evaluated as inhibitors of Bacillus anthracis pantothenate kinase and a competitive inhibitor has been identified with a K(i) that is 3-fold lower than the K(m) value of ATP.
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Affiliation(s)
- Andrew S Rowan
- School of Chemistry and Chemical Engineering, David Keir Building, Stranmillis Road, Queen's University Belfast, Belfast, BT9 5AG
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152
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Synthesis of 2-deoxy-hexopyranosyl derivatives of uridine as donor substrate analogues for glycosyltransferases. Bioorg Chem 2009; 37:211-6. [PMID: 19765794 DOI: 10.1016/j.bioorg.2009.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2009] [Revised: 07/30/2009] [Accepted: 08/11/2009] [Indexed: 11/24/2022]
Abstract
A series of 2-deoxy-hexopyranosyl derivatives of uridine have been synthesized as analogues of UDP-sugar. These compounds were tested as inhibitors against bovine beta-1,4-galactosyltransferase I in fluorescent assays and showed no significant inhibition.
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153
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Calveras J, Egido-Gabás M, Gómez L, Casas J, Parella T, Joglar J, Bujons J, Clapés P. Dihydroxyacetone Phosphate Aldolase Catalyzed Synthesis of Structurally Diverse Polyhydroxylated Pyrrolidine Derivatives and Evaluation of their Glycosidase Inhibitory Properties. Chemistry 2009; 15:7310-28. [DOI: 10.1002/chem.200900838] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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154
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5-Amino-2-pyridyl 1-thioglycosides in synthesis of analogs of glycosyltransferases substrates. Bioorg Chem 2009; 37:77-83. [DOI: 10.1016/j.bioorg.2009.04.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Revised: 04/07/2009] [Accepted: 04/09/2009] [Indexed: 11/19/2022]
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155
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Šimák O, Staněk J, Moravcová J. A stereocontrolled synthesis of 3-acetamido-1,3,5-trideoxy- and 1,3,5,6-tetradeoxy-1,5-imino-d-glucitol. Carbohydr Res 2009; 344:966-71. [DOI: 10.1016/j.carres.2009.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2008] [Revised: 03/03/2009] [Accepted: 03/17/2009] [Indexed: 10/21/2022]
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156
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157
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Guaragna A, D’Alonzo D, Paolella C, Palumbo G. Synthesis of 1-deoxy-l-gulonojirimycin and 1-deoxy-l-talonojirimycin. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.02.111] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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158
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Mitsuhashi N, Yuasa H. A Novel Galactosyltransferase Inhibitor with Diamino Sugar as a Pyrophosphate Mimic. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801285] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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159
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Svorc L, Vrábel V, Zúžiová J, Bobošíková M, Kožíšek J. (7R,8R,8aS)-8-Hydr-oxy-7-phenyl-per-hydro-indolizin-3-one. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o895-6. [PMID: 21582602 PMCID: PMC2968891 DOI: 10.1107/s160053680901085x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2009] [Accepted: 03/24/2009] [Indexed: 11/11/2022]
Abstract
The absolute configuration of the title compound, C(14)H(17)NO(2), was assigned from the synthesis. There are two mol-ecules in the asymmetric unit. Their geometries are very similar and corresponding bond lengths are almost identical [mean deviation for all non-H atoms = 0.015 (2) Å]. The six-membered ring of the indolizine system adopts a chair conformation. In the crystal structure, mol-ecules form chains parallel to the a axis via inter-molecular O-H⋯O hydrogen bonds, which help to stabilize the crystal structure.
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160
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Chagnault V, Compain P, Lewinski K, Ikeda K, Asano N, Martin OR. Stereodivergent Access to Polyhydroxylated 10-Azabicyclo[4.3.1]decanes as New Calystegine Analogues. J Org Chem 2009; 74:3179-82. [DOI: 10.1021/jo900235d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vincent Chagnault
- Institut de Chimie Organique et Analytique, Université d’Orléans-CNRS UMR 6005, BP 6759, 45067 Orléans, France, Faculty of Chemistry, Jagiellonian University, ul. R. Ingardena 3, 30-060 Krakow, Poland, and Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa 920-1181, Japan
| | - Philippe Compain
- Institut de Chimie Organique et Analytique, Université d’Orléans-CNRS UMR 6005, BP 6759, 45067 Orléans, France, Faculty of Chemistry, Jagiellonian University, ul. R. Ingardena 3, 30-060 Krakow, Poland, and Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa 920-1181, Japan
| | - Krzysztof Lewinski
- Institut de Chimie Organique et Analytique, Université d’Orléans-CNRS UMR 6005, BP 6759, 45067 Orléans, France, Faculty of Chemistry, Jagiellonian University, ul. R. Ingardena 3, 30-060 Krakow, Poland, and Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa 920-1181, Japan
| | - Kyoko Ikeda
- Institut de Chimie Organique et Analytique, Université d’Orléans-CNRS UMR 6005, BP 6759, 45067 Orléans, France, Faculty of Chemistry, Jagiellonian University, ul. R. Ingardena 3, 30-060 Krakow, Poland, and Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa 920-1181, Japan
| | - Naoki Asano
- Institut de Chimie Organique et Analytique, Université d’Orléans-CNRS UMR 6005, BP 6759, 45067 Orléans, France, Faculty of Chemistry, Jagiellonian University, ul. R. Ingardena 3, 30-060 Krakow, Poland, and Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa 920-1181, Japan
| | - Olivier R. Martin
- Institut de Chimie Organique et Analytique, Université d’Orléans-CNRS UMR 6005, BP 6759, 45067 Orléans, France, Faculty of Chemistry, Jagiellonian University, ul. R. Ingardena 3, 30-060 Krakow, Poland, and Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa 920-1181, Japan
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161
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Preparation and conformational analysis of C-glycosyl β2- and β/β2-peptides. Carbohydr Res 2009; 344:613-26. [DOI: 10.1016/j.carres.2009.01.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Revised: 01/13/2009] [Accepted: 01/20/2009] [Indexed: 11/20/2022]
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162
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Cavezza A, Boulle C, Guéguiniat A, Pichaud P, Trouille S, Ricard L, Dalko-Csiba M. Synthesis of Pro-XylaneTM: A new biologically active C-glycoside in aqueous media. Bioorg Med Chem Lett 2009; 19:845-9. [DOI: 10.1016/j.bmcl.2008.12.037] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Revised: 11/28/2008] [Accepted: 12/02/2008] [Indexed: 11/28/2022]
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163
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Grison C, Chibli H. Concise Synthesis ofP-Glycosyl Alkenylphosphonates andP,C-di andP,P,Ctri-Glycosyl Phosphonates. J Carbohydr Chem 2009. [DOI: 10.1080/07328300802638472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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164
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Gong H, Andrews RS, Zuccarello JL, Lee SJ, Gagné MR. Sn-Free Ni-Catalyzed Reductive Coupling of Glycosyl Bromides with Activated Alkenes. Org Lett 2009; 11:879-82. [DOI: 10.1021/ol8028737] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hegui Gong
- University of North Carolina at Chapel Hill, Department of Chemistry, Chapel Hill, North Carolina 27599, and U.S. Army Research Office, P.O. Box 12211, Research Triangle Park, North Carolina 27709
| | - R. Stephen Andrews
- University of North Carolina at Chapel Hill, Department of Chemistry, Chapel Hill, North Carolina 27599, and U.S. Army Research Office, P.O. Box 12211, Research Triangle Park, North Carolina 27709
| | - Joseph L. Zuccarello
- University of North Carolina at Chapel Hill, Department of Chemistry, Chapel Hill, North Carolina 27599, and U.S. Army Research Office, P.O. Box 12211, Research Triangle Park, North Carolina 27709
| | - Stephen J. Lee
- University of North Carolina at Chapel Hill, Department of Chemistry, Chapel Hill, North Carolina 27599, and U.S. Army Research Office, P.O. Box 12211, Research Triangle Park, North Carolina 27709
| | - Michel R. Gagné
- University of North Carolina at Chapel Hill, Department of Chemistry, Chapel Hill, North Carolina 27599, and U.S. Army Research Office, P.O. Box 12211, Research Triangle Park, North Carolina 27709
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165
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Yeoh KK, Butters TD, Wilkinson BL, Fairbanks AJ. Probing replacement of pyrophosphate via click chemistry; synthesis of UDP-sugar analogues as potential glycosyl transferase inhibitors. Carbohydr Res 2009; 344:586-91. [PMID: 19233348 DOI: 10.1016/j.carres.2009.01.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Revised: 12/11/2008] [Accepted: 01/06/2009] [Indexed: 11/17/2022]
Abstract
A series of potential UDP-sugar mimics were readily synthesised by copper(I) catalysed modified Huisgen cycloaddition of the corresponding alpha-propargyl glycosides with 5-azido uridine in aqueous solution. None of the compounds accessed displayed significant inhibitory activity at concentrations of up to 4.5mM in an assay against bovine milk beta-1,4-galactosyltransferase.
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Affiliation(s)
- Kar Kheng Yeoh
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK
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166
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Ribes C, Falomir E, Murga J, Carda M, Alberto Marco J. Convergent, stereoselective syntheses of the glycosidase inhibitors broussonetines D and M. Org Biomol Chem 2009; 7:1355-60. [DOI: 10.1039/b821431j] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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167
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Anderl T, Audouard C, Miah A, Percy JM, Rinaudo G, Singh K. Syntheses of difluorinated carbasugar phosphates from trifluoroethanol. Org Biomol Chem 2009; 7:5200-6. [DOI: 10.1039/b914068a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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168
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Moreno-Clavijo E, Carmona AT, Vera-Ayoso Y, Moreno-Vargas AJ, Bello C, Vogel P, Robina I. Synthesis of novel pyrrolidine 3,4-diol derivatives as inhibitors of α-L-fucosidases. Org Biomol Chem 2009; 7:1192-202. [DOI: 10.1039/b819867e] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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169
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Toma L, Legnani L, Rencurosi A, Poletti L, Lay L, Russo G. Modeling of synthetic phosphono and carba analogues of N-acetyl-α-d-mannosamine 1-phosphate, the repeating unit of the capsular polysaccharide from Neisseria meningitidis serovar A. Org Biomol Chem 2009; 7:3734-40. [DOI: 10.1039/b907000a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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170
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Dohi H, Périon R, Durka M, Bosco M, Roué Y, Moreau F, Grizot S, Ducruix A, Escaich S, Vincent SP. Stereoselective glycal fluorophosphorylation: synthesis of ADP-2-fluoroheptose, an inhibitor of the LPS biosynthesis. Chemistry 2008; 14:9530-9. [PMID: 18833547 DOI: 10.1002/chem.200801279] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Heptosides are found in important bacterial glycolipids such as lipopolysaccharide (LPS), the biosynthesis of which is targeted for the development of novel antibacterial agents. This work describes the synthesis of a fluorinated analogue of ADP-L-glycero-beta-D-manno-heptopyranose, the donor substrate of the heptosyl transferase WaaC, which catalyzes the incorporation of this carbohydrate into LPS. Synthetically, the key step for the preparation of ADP-2F-heptose is the simultaneous and stereoselective installation of both the fluorine atom at C-2 and the phosphoryl group at C-1 through a selectfluor-mediated (selectfluor=1-chloromethyl-4-fluorodiazoniabicyclo[2.2.2]octane bis(triflate)) electrophilic addition/nucleophilic substitution involving a heptosylglycal. Therefore, we detail in this article 1) the stereoselective preparation of the key intermediates heptosylglycals, 2) the development of a new fluorophosphorylation procedure allowing an excellent beta-gluco stereoselectivity with "all-equatorial" glycals, 3) the synthesis of the target ADP-2F-heptose, and 4) some comments on the contacts observed between the fluorine atom of the final molecule and the protein in the crystallographic structure of heptosyltransferase WaaC.
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Affiliation(s)
- Hirofumi Dohi
- Ecole Normale Supérieure, Département de Chimie, Institut de Chimie Moléculaire (FR 2769), UMR 8642: CNRS-ENS-UPMC Paris 6, 24 rue Lhomond, 75231 Paris Cedex 05 (France)
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171
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Kumari N, Reddy BG, Vankar YD. Efficient and Stereodivergent Syntheses of D- and L-Fagomines and Their Analogues. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800796] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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172
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Breit B, Bigot A. Enantioselective synthesis of 2,6-dideoxy carbasugars based on a desymmetrizing hydroformylation-carbonyl ene cyclization process. Chem Commun (Camb) 2008:6498-500. [PMID: 19057758 DOI: 10.1039/b817786d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical one-pot process involving a desymmetrizing hydroformylation with the aid of a chiral catalyst-directing group (CDG*), followed by a carbonyl ene cyclization provides a straightforward access to both enantiomers of the resulting cyclohexanediol; further divergent, highly selective and protecting group-free transformations furnish the carbocyclic analogues of four important 2,6-dideoxysugars.
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Affiliation(s)
- Bernhard Breit
- Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität Freiburg, Albertstr. 21, 79104 Freiburg, Germany.
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173
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Matsumura F, Oka N, Wada T. Stereoselective Synthesis of α-Glycosyl Phosphites and Phosphoramidites via O-Selective Glycosylation of H-Phosphonate Derivatives. Org Lett 2008; 10:5297-300. [DOI: 10.1021/ol802190x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fumiko Matsumura
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Bioscience Building 702, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
| | - Natsuhisa Oka
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Bioscience Building 702, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
| | - Takeshi Wada
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Bioscience Building 702, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
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174
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Chatterjee N, Pandit P, Halder S, Patra A, Maiti DK. Generation of Nitrile Oxides under Nanometer Micelles Built in Neutral Aqueous Media: Synthesis of Novel Glycal-Based Chiral Synthons and Optically Pure 2,8-Dioxabicyclo[4.4.0]decene Core. J Org Chem 2008; 73:7775-8. [DOI: 10.1021/jo801337k] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nirbhik Chatterjee
- Department of Chemistry, University Colleges of Science and Technology, University of Calcutta, 92, A. P. C. Road, Kolkata-700009, India
| | - Palash Pandit
- Department of Chemistry, University Colleges of Science and Technology, University of Calcutta, 92, A. P. C. Road, Kolkata-700009, India
| | - Samiran Halder
- Department of Chemistry, University Colleges of Science and Technology, University of Calcutta, 92, A. P. C. Road, Kolkata-700009, India
| | - Amarendra Patra
- Department of Chemistry, University Colleges of Science and Technology, University of Calcutta, 92, A. P. C. Road, Kolkata-700009, India
| | - Dilip K. Maiti
- Department of Chemistry, University Colleges of Science and Technology, University of Calcutta, 92, A. P. C. Road, Kolkata-700009, India
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175
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Ribes C, Falomir E, Carda M, Marco JA. Short, Stereoselective Synthesis of the Naturally Occurring Pyrrolidine Radicamine B and a Formal Synthesis of Nectrisine. J Org Chem 2008; 73:7779-82. [DOI: 10.1021/jo8012989] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Celia Ribes
- Departamento de Química Inorgánica y Orgánica, Univ. Jaume I, E-12071 Castellón, Spain, and Departamento de Química Orgánica, Univ. de Valencia, E-46100 Burjassot, Valencia, Spain
| | - Eva Falomir
- Departamento de Química Inorgánica y Orgánica, Univ. Jaume I, E-12071 Castellón, Spain, and Departamento de Química Orgánica, Univ. de Valencia, E-46100 Burjassot, Valencia, Spain
| | - Miguel Carda
- Departamento de Química Inorgánica y Orgánica, Univ. Jaume I, E-12071 Castellón, Spain, and Departamento de Química Orgánica, Univ. de Valencia, E-46100 Burjassot, Valencia, Spain
| | - J. Alberto Marco
- Departamento de Química Inorgánica y Orgánica, Univ. Jaume I, E-12071 Castellón, Spain, and Departamento de Química Orgánica, Univ. de Valencia, E-46100 Burjassot, Valencia, Spain
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176
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Gong H, Gagné MR. Diastereoselective Ni-Catalyzed Negishi Cross-Coupling Approach to Saturated, Fully Oxygenated C-Alkyl and C-Aryl Glycosides. J Am Chem Soc 2008; 130:12177-83. [DOI: 10.1021/ja8041564] [Citation(s) in RCA: 186] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hegui Gong
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
| | - Michel R. Gagné
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
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177
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Izquierdo I, Plaza MT, Tamayo JA, Yáñez V, Lo Re D, Sánchez-Cantalejo F. First total synthesis and absolute configuration of naturally occurring (−)-hyacinthacine A7 and its (−)-1-epi-isomer. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.03.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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178
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Synthesis of intermediates in the formation of hydroxy piperidines and 2-azido lactones from d-erythrose. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.02.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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179
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Totokotsopoulos SM, Koumbis AE, Gallos JK. Facile synthesis of 6a-carba-β-d-fructopyranose through an RCM approach. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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180
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Maeda T, Nishimura SI. FRET-based direct and continuous monitoring of human fucosyltransferases activity: an efficient synthesis of versatile GDP-L-fucose derivatives from abundant D-galactose. Chemistry 2008; 14:478-87. [PMID: 17929334 DOI: 10.1002/chem.200700760] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
We have developed a facile and versatile protocol for the continuous monitoring of human fucosyltransferases activity by using fluorescence energy resonance transfer (FRET), and have explored the feasibility of its use in an inhibitor screening assay. A convenient sugar nucleotide with a fluorogenic probe, 6-deoxy-6-N-(2-naphalene-2-yl-acetamide)-beta-L-galactopyranos-1-yl-guanosine 5'-diphosphate disodium salt (1), was efficiently synthesized from naturally abundant D-galactopyranose via a key intermediate, 6-azide-1,2,3,4-tetra-O-benzoyl-6-deoxy-beta-L-galactopyranose (10). It was demonstrated that the combined use of the glycosyl donor 1 and a dansylated acceptor substrate, sialyl-alpha2,3-LacNAc derivative (2) allowed us to carry out highly sensitive, direct, and continuous in vitro monitoring of the generation of sialyl Lewis X (SLe x), which is catalyzed by human alpha-1,3-fucosyltransferase VI (FUT-VI). A kinetic analysis revealed that compound 1 was an excellent donor substrate (KM=0.94 microM and Vmax=0.14 microM min(-1)) for detecting human FUT-VI activity. To the best of our knowledge, this synthetic fluorogenic probe is the most sensitive and selective donor substrate for FUT-VI among all of the known GDP-Fuc analogues, including the parent GDP-Fuc. When a dansylated asparagine-linked glycopeptide 20, which is derived from egg yolk was employed as an alternate acceptor substrate, a FRET-based assay with compound 1 could be used to directly monitor the alpha1,6-fucosylation at the reducing terminal GlcNAc residue by human FUT-VIII (KM=175 microM and Vmax=0.06 microM/ min); this indicates that the present method might become a general protocol for the characterization of various mammalian fucosyltransferases in the presence of designated fluorogenic acceptor substrates. The present protocol revealed that compound 23, which was obtained by a 1,3-dipolar cycloaddition between the disodium salt 16 and 1-ethynyl-naphthalene exhibits highly potent inhibitory effects against the FUT-VI-mediated sialyl Lewis X synthesis (IC50=5.4 microM).
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Affiliation(s)
- Takahiro Maeda
- Laboratory of Advanced Chemical Biology, Graduate School of Advanced Life Science, and Frontier Research Center for Post-Genome Science and Technology, Hokkaido University, N21, W11, Kita-ku, Sapporo 001-0021, Japan
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181
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Brown JR, Crawford BE, Esko JD. Glycan antagonists and inhibitors: a fount for drug discovery. Crit Rev Biochem Mol Biol 2008; 42:481-515. [PMID: 18066955 DOI: 10.1080/10409230701751611] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Glycans, the carbohydrate chains of glycoproteins, proteoglycans, and glycolipids, represent a relatively unexploited area for drug development compared with other macromolecules. This review describes the major classes of glycans synthesized by animal cells, their mode of assembly, and available inhibitors for blocking their biosynthesis and function. Many of these agents have proven useful for studying the biological activities of glycans in isolated cells, during embryological development, and in physiology. Some are being used to develop drugs for treating metabolic disorders, cancer, and infection, suggesting that glycans are excellent targets for future drug development.
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182
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Behr JB, Kalla A, Harakat D, Plantier-Royon R. Tandem Nucleophilic Addition/Cyclization Reaction in the Synthesis of Ketimine-Type Iminosugars. J Org Chem 2008; 73:3612-5. [DOI: 10.1021/jo702616x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jean-Bernard Behr
- Institut de Chimie Moléculaire de Reims (ICMR), UFR Sciences, CNRS, BP 1039, 51687 Reims Cedex 2, France
| | - Adel Kalla
- Institut de Chimie Moléculaire de Reims (ICMR), UFR Sciences, CNRS, BP 1039, 51687 Reims Cedex 2, France
| | - Dominique Harakat
- Institut de Chimie Moléculaire de Reims (ICMR), UFR Sciences, CNRS, BP 1039, 51687 Reims Cedex 2, France
| | - Richard Plantier-Royon
- Institut de Chimie Moléculaire de Reims (ICMR), UFR Sciences, CNRS, BP 1039, 51687 Reims Cedex 2, France
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183
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Matsumura F, Oka N, Wada T. Synthesis of Glycosyl Boranophosphates and Their Applications as Precursors of Glycosyl Phosphate Analogues. Org Lett 2008; 10:1557-60. [DOI: 10.1021/ol800205e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fumiko Matsumura
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Bioscience Building 702, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
| | - Natsuhisa Oka
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Bioscience Building 702, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
| | - Takeshi Wada
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Bioscience Building 702, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
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184
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Reddy PV, Veyron A, Koos P, Bayle A, Greene AE, Delair P. Approach to the hyacinthacines: first non-chiral pool synthesis of (+)-hyacinthacine A1. Org Biomol Chem 2008; 6:1170-2. [DOI: 10.1039/b800445e] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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185
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186
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Mehta G, Sen S, Pallavi K. Understanding the self-assembling process in crystalline cyclooctitols: an insight into the conformational flexibility of medium-sized rings. CrystEngComm 2008. [DOI: 10.1039/b712877k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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187
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Robertson J, Green SP, Hall MJ, Tyrrell AJ, Unsworth WP. Further studies on silatropic carbonyl ene cyclisations: β-crotyl(diphenyl)silyloxy aldehyde substrates; synthesis of 2-deoxy-2-C-phenylhexoses. Org Biomol Chem 2008; 6:2628-35. [DOI: 10.1039/b804752a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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188
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Sihelniková L, Kozmon S, Tvaroška I. DFT and Docking Study of Potential Transition State Analogue Inhibitors of Glycosyltransferases. ACTA ACUST UNITED AC 2008. [DOI: 10.1135/cccc20080591] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Conformational behavior of the [(2S,3R,4R,5S)-3,4,5-trihydroxy-2-(phenylsulfanyl)tetrahydrofuran-2-yl]methyl sulfate anion (2), which is the potential transition state (TS) analogue of the inverting glycosyltransferases, was studied by means of two-dimensional potential-energy maps, using a density functional theory method at the B3LYP/6-31+G* level. The maps revealed the presence of eight low-energy domains which were refined at the B3LYP/6-311++G** level and led to six conformers in vacuum. In aqueous solution, two conformers dominate at equilibrium. The preferred conformers superimpose well with the transition state structure, as determined previously for glycosyltransferase GnT-I. The conformations of 2 in the active site of glycosyltransferase GnT-I were obtained by docking methods. It was found that one of the two best docking poses mimics the binding mode of TS. These results suggest that the proposed TS mimics 2 have the potential to be used as a scaffold for the design of TS analogue inhibitors.
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189
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Barthel SR, Gavino JD, Descheny L, Dimitroff CJ. Targeting selectins and selectin ligands in inflammation and cancer. Expert Opin Ther Targets 2007; 11:1473-91. [PMID: 18028011 DOI: 10.1517/14728222.11.11.1473] [Citation(s) in RCA: 289] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Inflammation and cancer metastasis are associated with extravasation of leukocytes or tumor cells from blood into tissue. Such movement is believed to follow a coordinated and sequential molecular cascade initiated, in part, by the three members of the selectin family of carbohydrate-binding proteins: E-selectin (CD62E), L-selectin (CD62L) and P-selectin (CD62P). E-selectin is particularly noteworthy in disease by virtue of its expression on activated endothelium and on bone-skin microvascular linings and for its role in cell rolling, cell signaling and chemotaxis. E-selectin, along with L- or P-selectin, mediates cell tethering and rolling interactions through the recognition of sialo-fucosylated Lewis carbohydrates expressed on structurally diverse protein-lipid ligands on circulating leukocytes or tumor cells. Major advances in understanding the role of E-selectin in inflammation and cancer have been advanced by experiments assaying E-selectin-mediated rolling of leukocytes and tumor cells under hydrodynamic shear flow, by clinical models of E-selectin-dependent inflammation, by mice deficient in E-selectin and by mice deficient in glycosyltransferases that regulate the binding activity of E-selectin ligands. Here, the authors elaborate on how E-selectin and its ligands may facilitate leukocyte or tumor cell recruitment in inflammatory and metastatic settings. Antagonists that target cellular interactions with E-selectin and other members of the selectin family, including neutralizing monoclonal antibodies, competitive ligand inhibitors or metabolic carbohydrate mimetics, exemplify a growing arsenal of potentially effective therapeutics in controlling inflammation and the metastatic behavior of cancer.
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Affiliation(s)
- Steven R Barthel
- Harvard Skin Disease Research Center, Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Harvard Institutes of Medicine, Room 669, 77 Avenue Louis Pasteur, Boston, MA 02115, USA
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190
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Norsikian S, Zeitouni J, Rat S, Gérard S, Lubineau A. New and general synthesis of β-C-glycosylformaldehydes from easily available β-C-glycosylpropanones. Carbohydr Res 2007; 342:2716-28. [PMID: 17892865 DOI: 10.1016/j.carres.2007.09.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Revised: 09/02/2007] [Accepted: 09/04/2007] [Indexed: 10/22/2022]
Abstract
A highly effective method for the introduction of a formyl group at the anomeric position of pyranosides was developed via enolisation of beta-C-D-glycopyranosylpropan-2-one using thermodynamic conditions then oxidative cleavage of the more substituted double bond. This sequence affords the desired aldehydes that are conveniently protected as aminals for purification and storage and easily regenerated using Dowex resin H+. In this paper, the syntheses of nine differently protected aldehydes derived from d-glucose, d-galactose, lactose and N-acetyl-d-glucosamine are presented. Our strategy proved to be very efficient in most cases excepted in the D-mannose series.
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Affiliation(s)
- Stéphanie Norsikian
- Laboratoire de Chimie Organique Multifonctionnelle, UMR CNRS-UPS 8614 Glycochimie Moléculaire, Bât. 420, Université Paris Sud, F-91405 Orsay, France.
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191
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Falconer RA, Toth I. Design, synthesis and biological evaluation of novel lipoamino acid-based glycolipids for oral drug delivery. Bioorg Med Chem 2007; 15:7012-20. [PMID: 17851079 DOI: 10.1016/j.bmc.2007.07.048] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2007] [Revised: 07/24/2007] [Accepted: 07/24/2007] [Indexed: 10/22/2022]
Abstract
A series of lipoamino acid-based glycolipids were synthesised. Suitably derivatised lipoamino acid derivatives were prepared and conjugated to monosaccharides (including glycosyl azides, isothiocyanates, thiols and sulphones) to yield novel O-, N-, S- and C-linked glycolipids in good yields. Their potential to improve the oral absorption of piperacillin is reported.
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Affiliation(s)
- Robert A Falconer
- Institute of Cancer Therapeutics, School of Life Sciences, University of Bradford, Bradford BD7 1DP, UK
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192
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Bock D, Philipp S, Wolff G. Therapeutic potential of selectin antagonists in psoriasis. Expert Opin Investig Drugs 2007; 15:963-79. [PMID: 16859397 DOI: 10.1517/13543784.15.8.963] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Psoriasis is a systemic chronic inflammatory disorder. One of the major characteristics is an excess of infiltration of inflammatory cells, mainly lymphocytes, into the skin. Because the adhesion family of selectins is suggested to play a relevant role in this process, selectins have emerged as an interesting target for drug discovery and development in psoriasis. Different strategies targeting selectins have been described. This review discusses these approaches and summarises the current development of selectin antagonists for the treatment of psoriasis. An expert opinion will give the authors' personal opinion about selectin antagonism in psoriasis and which approach might be preferable.
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Affiliation(s)
- Daniel Bock
- Revotar Biopharmaceuticals AG, Neuendorfstrasse 24a, 16761 Hennigsdorf, Germany.
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193
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Abstract
The C-type lectin dendritic cell-specific intercellular adhesion molecule 3-grabbing nonintegrin (DC-SIGN) is found on the surface of dendritic cells. It can mediate adhesion between dendritic cells and T lymphocytes and facilitate antigen capture and presentation. Many pathogens can exploit DC-SIGN binding for nefarious purposes. For example, DC-SIGN can facilitate the dissemination of viruses, like HIV-1. Alternatively, some microbes (e.g., Mycobacterium tuberculosis) use their ability to interact with DC-SIGN to evade immune detection. The diverse roles attributed to DC-SIGN provide impetus to identify ligands that can be used to explore its different functions. Such compounds also could serve as therapeutic leads. Most of the DC-SIGN ligands studied previously are mannose- or fucose-derived monosaccharides or oligosaccharides with inhibitory constants in the range of 0.1-10 mM. To identify monovalent ligands with more powerful DC-SIGN blocking properties, we devised a high-throughput fluorescence-based competition assay. This assay afforded potent non-carbohydrate, small molecule inhibitors (IC50 values of 1.6-10 microM). These compounds block not only DC-SIGN-carbohydrate interactions but also DC-SIGN-mediated cell adhesion. Thus, we anticipate that these non-carbohydrate inhibitors can be used to illuminate the role of DC-SIGN in pathogenesis and immune function.
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Affiliation(s)
- M. Jack Borrok
- Department of Biochemistry, University of Wisconsin, Madison, WI 53706
| | - Laura L. Kiessling
- Department of Biochemistry, University of Wisconsin, Madison, WI 53706
- Department of Chemistry, University of Wisconsin, Madison, WI 53706
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194
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Wandzik I, Bieg T. Adducts of uridine and glycals as potential substrates for glycosyltransferases. Bioorg Chem 2007; 35:401-16. [PMID: 17707879 DOI: 10.1016/j.bioorg.2007.07.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2007] [Revised: 07/01/2007] [Accepted: 07/05/2007] [Indexed: 11/20/2022]
Abstract
We report on the synthesis of 2-deoxyglycosyl derivatives of uridine as potential donor substrates for glycosyltransferases. The totally stereoselective synthesis is accomplished by two sequential addition reactions of uridine derivatives to glycals promoted by triphenylphosphine-hydrogen bromide.
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Affiliation(s)
- Ilona Wandzik
- Silesian University of Technology, Faculty of Chemistry, Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, 44-100 Gliwice, Krzywoustego 4, Poland.
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195
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Torres-Sanchez MI, Zaccaria C, Buzzi B, Miglio G, Lombardi G, Polito L, Russo G, Lay L. Synthesis and biological evaluation of phosphono analogues of capsular polysaccharide fragments from Neisseria meningitidis A. Chemistry 2007; 13:6623-35. [PMID: 17508372 DOI: 10.1002/chem.200601743] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Neisseria meningitidis type A (MenA) is a Gram-negative encapsulated bacterium that may cause explosive epidemics of meningitis, especially in the sub-Saharan region of Africa. The development and manufacture of an efficient glycoconjugate vaccine against Neisseria meningitidis A is greatly hampered by the poor hydrolytic stability of its capsular polysaccharide, which is made up of (1-->6)-linked 2-acetamido-2-deoxy-alpha-D-mannopyranosyl phosphate repeating units. Since this chemical lability is a product of the inherent instability of the phosphodiester bridges, here we report the synthesis of phosphonoester-linked oligomers of N-acetyl mannosamine as candidates for stabilised analogues of the corresponding phosphate-bridged saccharides. The installation of each interglycosidic phosphonoester linkage was achieved by Mitsunobu coupling of a glycosyl C-phosphonate building block with the 6-OH moiety of a mannosaminyl residue. Each of the synthesised compounds contains an O-linked aminopropyl spacer at its reducing end (alpha- or beta-oriented) to allow for protein conjugation. The relative affinities of the synthetic molecules were investigated by a competitive ELISA assay and showed that a human polyclonal anti-MenA serum can recognise both the phosphonoester-bridged fragments 1-3 and their monomeric subunits, glycosides 20 and 21. Moreover, the biological results suggest that the abilities of these compounds to inhibit the binding of a specific antibody to MenA polysaccharide are dependent on the chain lengths of the molecules, but independent on the orientations of the anomeric linkers.
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Affiliation(s)
- Maria I Torres-Sanchez
- Dipartimento di Chimica Organica e Industriale and Centro Interdisciplinare Studi Bio-molecolari e Applicazioni Industriali, Università degli Studi di Milano via Venezian 21, 20133 Milano, Italy
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196
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Valade A, Urban D, Beau JM. Two galactosyltransferases' selection of different binders from the same uridine-based dynamic combinatorial library. ACTA ACUST UNITED AC 2007; 9:1-4. [PMID: 17206823 DOI: 10.1021/cc060033w] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anne Valade
- Laboratoire de Synthèse de Biomolécules, Université Paris-Sud 11, Institut de Chimie Moléculaire et des Matériaux Associé au CNRS, F-91405 Orsay Cedex, France
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197
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Ciliberti E, Galvani R, Gramazio F, Haddas S, Leonelli F, Passacantilli P, Piancatelli G. Glycals in Organic Synthesis: A Systematic Strategy for the Preparation of Uncommon Piperidine 1,2-Dideoxy-L-azasugars and 2-Deoxy-1,5-anhydro-L-hexitols. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600959] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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198
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Suk DH, Rejman D, Dykstra CC, Pohl R, Pankiewicz KW, Patterson SE. Phosphonoxins: rational design and discovery of a potent nucleotide anti-Giardia agent. Bioorg Med Chem Lett 2007; 17:2811-6. [PMID: 17360182 DOI: 10.1016/j.bmcl.2007.02.063] [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] [Received: 01/17/2007] [Revised: 02/19/2007] [Accepted: 02/22/2007] [Indexed: 11/28/2022]
Abstract
Phosphonoxins, a new class of synthetic, rationally designed anti-microbial agents, are described. From this class a sub-micromolar inhibitor of Giardia trophozoite growth has been identified.
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Affiliation(s)
- Dae-Hwan Suk
- Center for Drug Design, Academic Health Center, University of Minnesota, Minneapolis, MN 55455, USA
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199
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Denton RW, Mootoo DR. Synthesis of the C‐Glycoside of Methyl α‐d‐Altropyranosyl‐(1→4)‐α‐d‐glucopyranoside. J Carbohydr Chem 2007. [DOI: 10.1081/car-120026467] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Richard W. Denton
- a Department of Chemistry , Hunter College , 695 Park Avenue, New York , New York , 10021 , USA
| | - David R. Mootoo
- a Department of Chemistry , Hunter College , 695 Park Avenue, New York , New York , 10021 , USA
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200
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Caravano A, Baillieul D, Ansiaux C, Pan W, Kovensky J, Sinaÿ P, Vincent SP. Synthesis of galactosides locked in a 1,4B boat conformation and functionalized at the anomeric position. Tetrahedron 2007. [DOI: 10.1016/j.tet.2006.12.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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