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Yang J, Wei S, Zhao J, Zeng W, Shao H, Ma X. An environmentally benign protocol for the synthesis of sugar 1,2-orthoesters in poly(ethylene glycol) dimethyl ether (DMPE). Carbohydr Res 2023; 534:108902. [PMID: 38006705 DOI: 10.1016/j.carres.2023.108902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/30/2023] [Accepted: 07/17/2023] [Indexed: 11/27/2023]
Abstract
An environmentally benign procedure has been developed for the synthesis of sugar orthoesters using anhydrous sodium acetate in poly (ethylene glycol)dimethyl ether (DMPE). Various sugar orthoesers were prepared without using volatile organic solvent and quaternary ammonium salt. The sugar orthoesters were obtained in good to excellent yields.
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Affiliation(s)
- Jian Yang
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Shanqiao Wei
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Jinzhong Zhao
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Wei Zeng
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Huawu Shao
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China.
| | - Xiaofeng Ma
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China.
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2
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Aswathy M, Abhijith B, Lankalapalli RS, Radhakrishnan KV. A pentacarbomethoxycyclopentadiene (PCCP) organic Brønsted acid catalyzed stereoselective glycosidation of N-pentenyl orthoesters (NPOE) of d-glucose and d-galactose, in conjunction with N-iodosuccinimide. Carbohydr Res 2022; 522:108684. [DOI: 10.1016/j.carres.2022.108684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 09/16/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022]
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3
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Liu M, Qin X, Ye XS. Glycan Assembly Strategy: From Concept to Application. CHEM REC 2021; 21:3256-3277. [PMID: 34498347 DOI: 10.1002/tcr.202100183] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/30/2021] [Indexed: 12/11/2022]
Abstract
Glycans have been hot topics in recent years due to their exhibition of numerous biological activities. However, the heterogeneity of their natural source and the complexity of their chemical synthesis impede the progress in their biological research. Thus, the development of glycan assembly strategies to acquire plenty of structurally well-defined glycans is an important issue in carbohydrate chemistry. In this review, the latest advances in glycan assembly strategies from concepts to their applications in carbohydrate synthesis, including chemical and enzymatic/chemo-enzymatic approaches, as well as solution-phase and solid-phase/tag-assisted synthesis, are summarized. Furthermore, the automated glycan assembly techniques are also outlined.
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Affiliation(s)
- Mingli Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing, 100191, China
| | - Xianjin Qin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing, 100191, China
| | - Xin-Shan Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road No. 38, Beijing, 100191, China
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4
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Li X, Zhu J. Glycosylation via Transition-Metal Catalysis: Challenges and Opportunities. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600484] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaohua Li
- Department of Natural Sciences; University of Michigan-Dearborn; 4901 Evergreen Road 48128 Dearborn Michigan USA
| | - Jianglong Zhu
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering; The University of Toledo; 2801 West Bancroft Street 43606 Toledo Ohio USA
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5
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Zulueta MML, Janreddy D, Hung SC. One-Pot Methods for the Protection and Assembly of Sugars. Isr J Chem 2015. [DOI: 10.1002/ijch.201400171] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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6
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Zakharova AN, Madsen R, Clausen MH. Synthesis of a Backbone Hexasaccharide Fragment of the Pectic Polysaccharide Rhamnogalacturonan I. Org Lett 2013; 15:1826-9. [DOI: 10.1021/ol400430p] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexandra N. Zakharova
- Center for Nanomedicine and Theranostics and Department of Chemistry, Technical University of Denmark, Kemitorvet, Building 207, DK-2800 Kgs. Lyngby, Denmark
| | - Robert Madsen
- Center for Nanomedicine and Theranostics and Department of Chemistry, Technical University of Denmark, Kemitorvet, Building 207, DK-2800 Kgs. Lyngby, Denmark
| | - Mads H. Clausen
- Center for Nanomedicine and Theranostics and Department of Chemistry, Technical University of Denmark, Kemitorvet, Building 207, DK-2800 Kgs. Lyngby, Denmark
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7
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Ranade SC, Demchenko AV. Mechanism of Chemical Glycosylation: Focus on the Mode of Activation and Departure of Anomeric Leaving Groups. J Carbohydr Chem 2013. [DOI: 10.1080/07328303.2012.749264] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Sneha C. Ranade
- a Department of Chemistry and Biochemistry , University of Missouri , St. Louis , MO , 63121 , USA
| | - Alexei V. Demchenko
- a Department of Chemistry and Biochemistry , University of Missouri , St. Louis , MO , 63121 , USA
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8
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Liang XY, Liu QW, Bin HC, Yang JS. One-pot synthesis of branched oligosaccharides by use of galacto- and mannopyranosyl thioglycoside diols as key glycosylating agents. Org Biomol Chem 2013; 11:3903-17. [DOI: 10.1039/c3ob40421h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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9
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Uriel C, Ventura J, Gómez AM, López JC, Fraser-Reid B. Methyl 1,2-Orthoesters as Useful Glycosyl Donors in Glycosylation Reactions: A Comparison with n-Pent-4-enyl 1,2-Orthoesters. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200089] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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10
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: an update for 2007-2008. MASS SPECTROMETRY REVIEWS 2012; 31:183-311. [PMID: 21850673 DOI: 10.1002/mas.20333] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Revised: 01/04/2011] [Accepted: 01/04/2011] [Indexed: 05/31/2023]
Abstract
This review is the fifth update of the original review, published in 1999, on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2008. The first section of the review covers fundamental studies, fragmentation of carbohydrate ions, use of derivatives and new software developments for analysis of carbohydrate spectra. Among newer areas of method development are glycan arrays, MALDI imaging and the use of ion mobility spectrometry. The second section of the review discusses applications of MALDI MS to the analysis of different types of carbohydrate. Specific compound classes that are covered include carbohydrate polymers from plants, N- and O-linked glycans from glycoproteins, biopharmaceuticals, glycated proteins, glycolipids, glycosides and various other natural products. There is a short section on the use of MALDI mass spectrometry for the study of enzymes involved in glycan processing and a section on the use of MALDI MS to monitor products of the chemical synthesis of carbohydrates with emphasis on carbohydrate-protein complexes and glycodendrimers. Corresponding analyses by electrospray ionization now appear to outnumber those performed by MALDI and the amount of literature makes a comprehensive review on this technique impractical. However, most of the work relating to sample preparation and glycan synthesis is equally relevant to electrospray and, consequently, those proposing analyses by electrospray should also find material in this review of interest.
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Affiliation(s)
- David J Harvey
- Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK.
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11
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Zhao J, Wei S, Yue A, Shao H. Environmentally Benign Synthesis of Sugar Orthoesters Promoted by Anhydrous Sodium Acetate and Ultrasound. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201100385] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Experimental observations on the regioselectivity of glycosylation of a 4,6-diol system in the β-d-mannopyranosyl unit of a N-glycan pentasaccharide core structure. Carbohydr Res 2011; 346:1581-91. [DOI: 10.1016/j.carres.2011.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 05/05/2011] [Accepted: 05/06/2011] [Indexed: 11/17/2022]
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13
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Ma Q, Sun S, Meng XB, Li Q, Li SC, Li ZJ. Assembly of Homolinear α(1→2)-Linked Nonamannoside on Ionic Liquid Support. J Org Chem 2011; 76:5652-60. [DOI: 10.1021/jo2006126] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qing Ma
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Sheng Sun
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Xiang-Bao Meng
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Qing Li
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Shu-Chun Li
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Zhong-Jun Li
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
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14
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Lo Conte M, Marra A, Chambery A, Gurcha SS, Besra GS, Dondoni A. Modular approach to triazole-linked 1,6-α-D-oligomannosides to the discovery of inhibitors of Mycobacterium tuberculosis cell wall synthetase. J Org Chem 2011; 75:6326-36. [PMID: 20822121 DOI: 10.1021/jo100928g] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Aiming at developing inhibitors of mannosyltransferases, the enzymes that participate in the biosynthesis of the cell envelope of Mycobacterium tuberculosis, the synthesis of a range of designed triazole-linked 1,6-oligomannosides up to a hexadecamer has been accomplished by a modular approach centered on the Cu(I)-catalyzed azide-alkyne cycloaddition as key process. The efficiency and fidelity of the cycloaddition are substantiated by high yields (76-96%) and exclusive formation of the expected 1,4-disubstituted triazole ring in all oligomer assembling reactions. Key features of oligomers thus prepared are the anomeric carbon-carbon bond of all mannoside residues and the 6-deoxymannoside capping residue. Suitable bioassays with dimer, tetramer, hexamer, octamer, decamer, and hexadecamer showed variable inhibitor activity against mycobacterial α-(1,6)-mannosyltransferases, the highest activity (IC(50) = 0.14-0.22 mM) being registered with the hexamannoside and octamannoside.
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Affiliation(s)
- Mauro Lo Conte
- Dipartimento di Chimica, Laboratorio di Chimica Organica, Università di Ferrara, Via L. Borsari 46, I-44100 Ferrara, Italy
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Pastore A, Adinolfi M, Iadonisi A, Valerio S. Rapid assembly of gp120 oligosaccharide moieties via one-pot glycosidation–deprotection sequences. Carbohydr Res 2010; 345:1316-23. [DOI: 10.1016/j.carres.2010.02.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Revised: 02/17/2010] [Accepted: 02/25/2010] [Indexed: 01/08/2023]
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16
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Dondoni A. Heterocycles in organic synthesis: thiazoles and triazoles as exemplar cases of synthetic auxiliaries. Org Biomol Chem 2010; 8:3366-85. [PMID: 20505853 DOI: 10.1039/c002586k] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This Perspective article illustrates the key role of thiazole and triazole in the work carried out in the author's laboratory over three decades and deals with the synthesis of carbohydrate-based bioactive molecules. The first part reports on the development of synthetic strategies exploiting the use of various thiazole-based reagents and the ready conversion of thiazole into the formyl group. After describing the chain elongation of monosaccharides into higher-carbon homologues, the synthesis of target natural and non-natural carbohydrates, or their ultimate precursors, is presented. These include some sphingoids, neuraminic and destomic acids, lincosamine, various 3-deoxy-2-ulosonic acids (KDO, KDN, iso-Neu4Ac), iminosugars (nojirimycin, mannojirimycin, galactostatin) and homoazasugars. Also prepared were the disaccharide subunit of bleomycin A(2) and the side-chain of taxol and taxotere.((R)) The use of 1,2,3-triazole is discussed in the second part of the paper. The service of this heterocycle that is easily formed by the Cu(i)-catalyzed azide-alkyne cycloaddition (CuAAC) is considered in light of its use as a robust linker (a sort of keystone) of complex and diverse molecular architectures. Thus, the assembly of triazole-linked glycosyl amino acids, non-natural nucleotides, 1,6-oligomannosides, sialoside clusters on calixarene platfom via CuAAC is described and the biological relevance of these compounds is discussed in brief.
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Affiliation(s)
- Alessandro Dondoni
- Dipartimento di Chimica, Laboratorio di Chimica Organica, Università di Ferrara, Via L. Borsari 46, I-44100 Ferrara, Italy.
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17
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Pastore A, Adinolfi M, Iadonisi A, Valerio S. One-Pot Catalytic Glycosidation/Fmoc Removal - An Iterable Sequence for Straightforward Assembly of Oligosaccharides Related to HIV gp120. European J Org Chem 2010. [DOI: 10.1002/ejoc.200901122] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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18
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Galan MC, Tran AT, Whitaker S. [bmim][OTf] as co-solvent/promoter in room temperature reactivity-based one-pot glycosylation reactions. Chem Commun (Camb) 2010; 46:2106-8. [DOI: 10.1039/b926177j] [Citation(s) in RCA: 36] [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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19
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Wei S, Zhao J, Shao H. A facile method for the preparation of sugar orthoesters promoted by anhydrous sodium bicarbonate. CAN J CHEM 2009. [DOI: 10.1139/v09-146] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A facile and eco-friendly method for the preparation of sugar orthoesters by using anhydrous sodium bicarbonate is described. Various sugar orthoesers, including sugar–sugar orthoesters, were synthesized in good-to-excellent yields by the reaction of a protected glycosyl bromide with an alcohol or sugar.
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Affiliation(s)
- Shanqiao Wei
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jinzhong Zhao
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Huawu Shao
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
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20
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Yerneni CK, Pathak V, Pathak AK. Imidazolium cation supported solution-phase assembly of homolinear alpha(1-->6)-linked octamannoside: an efficient alternate approach for oligosaccharide synthesis. J Org Chem 2009; 74:6307-10. [PMID: 19624152 PMCID: PMC2888776 DOI: 10.1021/jo901169u] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient, simple convergent assembly of a homolinear alpha(1-->6)-linked octamannosyl thioglycoside was obtained starting from imidazolium cation-tagged mannosyl fluoride and thiomannoside using block couplings. During chain elongation glycosylation reactions no column chromatographic purifications were used.
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Affiliation(s)
- Charu K. Yerneni
- Department of Chemistry; Western Illinois University, 1 University Circle, Macomb, IL 61455, USA
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21
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Smoot JT, Demchenko AV. Oligosaccharide synthesis: from conventional methods to modern expeditious strategies. Adv Carbohydr Chem Biochem 2009; 62:161-250. [PMID: 19501706 DOI: 10.1016/s0065-2318(09)00005-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- James T Smoot
- Department of Chemistry and Biochemistry, University of Missouri, St. Louis, MO 63121, USA
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22
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Affiliation(s)
- Feng Cai
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA
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23
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Crich D, Li L. Stereocontrolled synthesis of D- and L-beta-rhamnopyranosides with 4-O-6-S-alpha-cyanobenzylidene-protected 6-thiorhamnopyranosyl thioglycosides. J Org Chem 2009; 74:773-81. [PMID: 19132946 PMCID: PMC2696688 DOI: 10.1021/jo8022439] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of both enantiomers of a 4-O-6-S-alpha-cyanobenzylidene-protected 6-thiorhamnopyranosyl thioglycoside is described starting from D-mannnose and L-arabinose derivatives for the D- and L-series, respectively. This donor is effective in the preparation of the corresponding beta-glycosides using the 1-benzenesulfinyl piperidine/trifluoromethanesulfonic anhydride protocol. Following desulfurization and concomitant debenzylation with Raney nickel, the so-formed 6-thio-beta-mannosides are converted in high yield to the beta-rhamnopyranosides.
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Affiliation(s)
- David Crich
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, USA.
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26
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Belén Cid M, Alfonso F, Alonso I, Martín-Lomas M. On the origin of the regioselectivity in glycosylation reactions of 1,2-diols. Org Biomol Chem 2009; 7:1471-81. [DOI: 10.1039/b819452a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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27
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Uriel C, Gómez AM, López JC, Fraser-Reid B. Reciprocal Donor-Acceptor Selectivity: the Influence of the Donor O-2 Substituent in the Regioselective Mannosylation ofmyo-Inositol Orthopentanoate. European J Org Chem 2009. [DOI: 10.1002/ejoc.200800991] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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28
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Aqueel MS, Pathak V, Pathak AK. Concise assembly of linear alpha(1-->6)-linked octamannan fluorescent probe. Tetrahedron Lett 2008; 49:7157-7160. [PMID: 20011026 PMCID: PMC2598757 DOI: 10.1016/j.tetlet.2008.09.164] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Synthesis of a fluorescently labelled (dansylated) linear alpha(1-->6)-linked octamannan, using glycosyl fluoride donors and thioglycosyl acceptors is described. A selective and convergent two-stage activation progression was executed to construct di-, tetra and octa-mannosyl thioglycosides in three glycosylation steps with excellent yield. Further a 5-N,N-Dimethylaminonaphthalene-1-sulfonamidoethyl (dansyl) group was coupled to 1-azidoethyl octamannosyl thioglycoside. Global deprotection of the coupled product afforded the desired dansylated homo-linear alpha(1-->6)-linked octamannan.
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Affiliation(s)
- Mohammad S. Aqueel
- Department of Chemistry, Western IllinoisUniversity, Macomb, IL 61455, USA
| | - Vibha Pathak
- Department of Chemistry, Western IllinoisUniversity, Macomb, IL 61455, USA
| | - Ashish K. Pathak
- Department of Chemistry, Western IllinoisUniversity, Macomb, IL 61455, USA
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Fraser-Reid B, Chaudhuri SR, Jayaprakash KN, Lu J, Ramamurty CVS. Efficient Chemical Synthesis of a Dodecasaccharidyl Lipomannan Component of Mycobacterial Lipoarabinomannan. J Org Chem 2008; 73:9732-43. [DOI: 10.1021/jo802000p] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bert Fraser-Reid
- Natural Products and Glycotechnology Research Institute, Inc., 595 F Weathersfield Road, Pittsboro, North Carolina 27312
| | - Siddhartha Ray Chaudhuri
- Natural Products and Glycotechnology Research Institute, Inc., 595 F Weathersfield Road, Pittsboro, North Carolina 27312
| | - K. N. Jayaprakash
- Natural Products and Glycotechnology Research Institute, Inc., 595 F Weathersfield Road, Pittsboro, North Carolina 27312
| | - Jun Lu
- Natural Products and Glycotechnology Research Institute, Inc., 595 F Weathersfield Road, Pittsboro, North Carolina 27312
| | - Changalvala V. S. Ramamurty
- Natural Products and Glycotechnology Research Institute, Inc., 595 F Weathersfield Road, Pittsboro, North Carolina 27312
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Crich D, Wu B. Stereoselective iterative one-pot synthesis of N-glycolylneuraminic acid-containing oligosaccharides. Org Lett 2008; 10:4033-5. [PMID: 18715011 PMCID: PMC2726932 DOI: 10.1021/ol801548k] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The use of an N-acyloxazolidinone-protected S-adamantanyl thiosialoside allows the highly stereoselective, one-pot multicomponent synthesis of alpha-sialoside-based oligosaccharides.
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Affiliation(s)
- David Crich
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, USA.
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31
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Valerio S, Pastore A, Adinolfi M, Iadonisi A. Sequential one-pot glycosidations catalytically promoted: unprecedented strategy in oligosaccharide synthesis for the straightforward assemblage of the antitumor PI-88 pentasaccharide. J Org Chem 2008; 73:4496-503. [PMID: 18479167 DOI: 10.1021/jo8003953] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The pentasaccharide sequence of the most active components of the antitumor drug PI-88, currently in phase II clinical trial, has been rapidly assembled in high overall yield and in only three steps starting from three monosaccharide building blocks. The procedure takes advantage of the first reported strategy of sequential one-pot glycosidations conducted exclusively under catalytic activation. In addition, the procedure relies only on shelf-stable and mild promoters such as Yb(OTf)(3) and Bi(OTf)(3).
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Affiliation(s)
- Silvia Valerio
- Dipartimento di Chimica Organica e Biochimica, Università degli Studi di Napoli Federico II, Napoli, Italy
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32
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Mydock LK, Demchenko AV. Application of the superarmed glycosyl donor to chemoselective oligosaccharide synthesis. Org Lett 2008; 10:2107-10. [PMID: 18447362 DOI: 10.1021/ol800648d] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Recently, we discovered a novel method for "superarming" glycosyl donors. Herein, this concept has been exemplified in one-pot oligosaccharide syntheses, whereby the superarmed glycosyl donor was chemoselectively activated over traditional "armed" and disarmed glycosyl acceptors. Direct side-by-side comparison of the reactivities of the classic armed and superarmed glycosyl donors further validates the credibility of the novel concept.
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Affiliation(s)
- Laurel K Mydock
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, St. Louis, Missouri 63121, USA
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