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Pseudo-glycoconjugates with a C-glycoside linkage. Adv Carbohydr Chem Biochem 2022; 82:35-77. [PMID: 36470649 DOI: 10.1016/bs.accb.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Work by the author and colleagues has been focused on the development of pseudo-glycans (pseudo-glycoconjugates), in which the O-glycosidic linkage of the natural-type glycan structure is replaced by a C-glycosidic linkage. These analogs are not degraded by cellular glycoside hydrolases and are thus expected to be useful molecular tools that may maintain the original biological activity for a long period in the cell. However, their biological potential is not yet well understood because only a few pseudo glycans have so far been synthesized. This article aims to provide a bird's-eye view of our recent studies on the creation of C-glycoside analogs of ganglioside GM3 based on the CHF-sialoside linkage, and summarizes the chemical insights acquired during our stereoselective synthesis of the C-sialoside bond, ultimately leading to pseudo-GM3. Conformational analysis of the synthesized CHF-sialoside disaccharides confirmed that the anticipated conformational control by F-atom introduction was successful, and furthermore, enhanced the biological activity. In order to improve access to C-glycoside analogs based on pseudo-GM3, it is still important to streamline the synthesis process. With this in mind, we designed and developed a direct C-glycosylation method using atom-transfer radical coupling, and employed it in syntheses of pseudo-isomaltose and pseudo-KRN7000.
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Hirai G, Kato M, Koshino H, Nishizawa E, Oonuma K, Ota E, Watanabe T, Hashizume D, Tamura Y, Okada M, Miyagi T, Sodeoka M. Ganglioside GM3 Analogues Containing Monofluoromethylene-Linked Sialoside: Synthesis, Stereochemical Effects, Conformational Behavior, and Biological Activities. JACS AU 2021; 1:137-146. [PMID: 34467279 PMCID: PMC8395706 DOI: 10.1021/jacsau.0c00058] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Indexed: 05/12/2023]
Abstract
Glycoconjugates are an important class of biomolecules that regulate numerous biological events in cells. However, these complex, medium-size molecules are metabolically unstable, which hampers detailed investigations of their functions as well as their potential application as pharmaceuticals. Here we report sialidase-resistant analogues of ganglioside GM3 containing a monofluoromethylene linkage instead of the native O-sialoside linkage. Stereoselective synthesis of CHF-linked disaccharides and kinetically controlled Au(I)-catalyzed glycosylation efficiently furnished both stereoisomers of CHF-linked as well as CF 2 - and CH 2 -linked GM3 analogues. Like native GM3, the C-linked GM3 analogues inhibited the autophosphorylation of epidermal growth factor (EGF) receptor induced by EGF in vitro. Assay of the proliferation-enhancing activity toward Had-1 cells together with NMR-based conformational analysis showed that the (S)-CHF-linked GM3 analogue with exo-gauche conformation is the most potent of the synthesized compounds. Our findings suggest that exo-anomeric conformation is important for the biological functions of GM3.
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Affiliation(s)
- Go Hirai
- Graduate
School of Pharmaceutical Sciences, Kyushu
University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
- RIKEN
Cluster for Pioneering Resaerch, Synthetic Organic Chemistry Laboratory, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN
Center for Sustainable Resource Science, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Marie Kato
- RIKEN
Cluster for Pioneering Resaerch, Synthetic Organic Chemistry Laboratory, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
- Tokyo
Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Hiroyuki Koshino
- RIKEN
Center for Sustainable Resource Science, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Eri Nishizawa
- RIKEN
Cluster for Pioneering Resaerch, Synthetic Organic Chemistry Laboratory, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
- Tokyo
Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Kana Oonuma
- RIKEN
Center for Sustainable Resource Science, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Eisuke Ota
- RIKEN
Cluster for Pioneering Resaerch, Synthetic Organic Chemistry Laboratory, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Toru Watanabe
- RIKEN
Cluster for Pioneering Resaerch, Synthetic Organic Chemistry Laboratory, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN
Center for Emergent Matter Science, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yuki Tamura
- RIKEN
Cluster for Pioneering Resaerch, Synthetic Organic Chemistry Laboratory, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mitsuaki Okada
- RIKEN
Cluster for Pioneering Resaerch, Synthetic Organic Chemistry Laboratory, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
- Tokyo
Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Taeko Miyagi
- Miyagi Cancer
Center Research Institute, Natori 981-1293, Japan
| | - Mikiko Sodeoka
- RIKEN
Cluster for Pioneering Resaerch, Synthetic Organic Chemistry Laboratory, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN
Center for Sustainable Resource Science, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
- Tokyo
Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
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Hirai G, Ota E, Sakai M, Nishiyama S, Sodeoka M. C-Sialosides: Synthesis and Biological Activities. TRENDS GLYCOSCI GLYC 2015. [DOI: 10.4052/tigg.1313.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Go Hirai
- CREST, JST
- RIKEN Center for Sustainable Resource Science
- Synthetic Organic Chemistry Laboratory, RIKEN
| | - Eisuke Ota
- Keio University
- Synthetic Organic Chemistry Laboratory, RIKEN
| | - Motonari Sakai
- Tokyo Medical and Dental University
- Synthetic Organic Chemistry Laboratory, RIKEN
| | | | - Mikiko Sodeoka
- Tokyo Medical and Dental University
- CREST, JST
- RIKEN Center for Sustainable Resource Science
- Synthetic Organic Chemistry Laboratory, RIKEN
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4
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DeMarco ML. Three-Dimensional Structure of Glycolipids in Biological Membranes. Biochemistry 2012; 51:5725-32. [DOI: 10.1021/bi3003633] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mari L. DeMarco
- Division of Laboratory
and Genomic Medicine, Washington University School of Medicine, 660 South
Euclid Avenue, St. Louis, Missouri 63110, United States
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5
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Juaristi E, Bandala Y. Anomeric Effect in Saturated Heterocyclic Ring Systems. ADVANCES IN HETEROCYCLIC CHEMISTRY 2012. [DOI: 10.1016/b978-0-12-396530-1.00002-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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6
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León EI, Martín A, Peréz-Martín I, Quintanal LM, Suárez E. Hydrogen Atom Transfer Experiments Provide Chemical Evidence for the Conformational Differences between C- and O-Disaccharides. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000470] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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DeMarco ML, Woods RJ. Atomic-resolution conformational analysis of the GM3 ganglioside in a lipid bilayer and its implications for ganglioside-protein recognition at membrane surfaces. Glycobiology 2008; 19:344-55. [PMID: 19056784 DOI: 10.1093/glycob/cwn137] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Eukaryotic cells depend on external surface markers, such as gangliosides, to recognize and bind various other molecules as part of normal growth and maturation. The localization of gangliosides in the outer leaflet of the plasma membrane, also make them targets for pathogens trying to invade the host cells. Since ganglioside-mediated interactions are critical to both beneficial and pathological processes, much effort has been directed at determining the 3D structures of their carbohydrate head groups; however, technical difficulties have generally prevented the characterization of the head group in intact membrane-bound gangliosides. Determining the 3D structure and presentation of gangliosides at the surface of membranes is important in understanding how cells interact with their local environment. Here, we employ all-atom explicit solvent molecular dynamics (MD) simulations, using the GLYCAM06 force field, to model the conformation and dynamics of ganglioside G(M3) (alpha-Neu5Ac-(2-3)-beta-Gal-(1-4)-beta-Glc-ceramide) in a DMPC lipid bilayer. By comparison with MD simulations of the carbohydrate head-group fragment of G(M3) alone, it was possible to quantify and characterize the extent of changes in head-group presentation and dynamics associated with membrane anchoring. The accuracy of data from the MD simulations was determined by comparison to NMR and crystallographic data for the head group in solution and for G(M3) in membrane-mimicking environments. The experimentally consistent model of G(M3), in a lipid bilayer, was then used to model the recognition of G(M3) at the cell surface by known protein receptors.
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Affiliation(s)
- Mari L DeMarco
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602-4712, USA
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8
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Watanabe T, Hirai G, Kato M, Hashizume D, Miyagi T, Sodeoka M. Synthesis of CH2-Linked α(2,3)Sialylgalactose Analogue: On the Stereoselectivity of the Key Ireland-Claisen Rearrangement. Org Lett 2008; 10:4167-70. [DOI: 10.1021/ol801519j] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Toru Watanabe
- RIKEN, Hirosawa, Wako 351-0198, Japan, Division of Biochemistry, Miyagi Cancer Center Research Institute, Natori 981-1293, Japan, and CREST, JST Kawaguchi 332-1102, Japan
| | - Go Hirai
- RIKEN, Hirosawa, Wako 351-0198, Japan, Division of Biochemistry, Miyagi Cancer Center Research Institute, Natori 981-1293, Japan, and CREST, JST Kawaguchi 332-1102, Japan
| | - Marie Kato
- RIKEN, Hirosawa, Wako 351-0198, Japan, Division of Biochemistry, Miyagi Cancer Center Research Institute, Natori 981-1293, Japan, and CREST, JST Kawaguchi 332-1102, Japan
| | - Daisuke Hashizume
- RIKEN, Hirosawa, Wako 351-0198, Japan, Division of Biochemistry, Miyagi Cancer Center Research Institute, Natori 981-1293, Japan, and CREST, JST Kawaguchi 332-1102, Japan
| | - Taeko Miyagi
- RIKEN, Hirosawa, Wako 351-0198, Japan, Division of Biochemistry, Miyagi Cancer Center Research Institute, Natori 981-1293, Japan, and CREST, JST Kawaguchi 332-1102, Japan
| | - Mikiko Sodeoka
- RIKEN, Hirosawa, Wako 351-0198, Japan, Division of Biochemistry, Miyagi Cancer Center Research Institute, Natori 981-1293, Japan, and CREST, JST Kawaguchi 332-1102, Japan
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9
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Martín A, Pérez-Martín I, Quintanal LM, Suárez E. Stereoselective synthesis of C-ketosides by sequential intramolecular hydrogen atom transfer–intermolecular allylation reaction. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.06.070] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Denton RW, Tony KA, Hernández-Gay JJ, Cañada FJ, Jiménez-Barbero J, Mootoo DR. Synthesis and conformational behavior of the difluoromethylene linked C-glycoside analog of beta-galactopyranosyl-(1<-->1)-alpha-mannopyranoside. Carbohydr Res 2007; 342:1624-35. [PMID: 17601514 PMCID: PMC2084073 DOI: 10.1016/j.carres.2007.06.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2007] [Revised: 06/06/2007] [Accepted: 06/07/2007] [Indexed: 10/23/2022]
Abstract
C-Glycosides in which the pseudoglycosidic substituent is a methylene group have been advertised as hydrolytically stable mimetics of their parent O-glycosides. While this substitution assures greater stability, the lower polarity and increased conformational flexibility in the intersaccharide linker brought about by this change may compromise biological mimicry. In this regard, C-glycosides, in which the pseudoanomeric methylene is replaced with a difluoromethylene group, are interesting because the CF2 group is more of an isopolar replacement for oxygen than CH2. In addition, the CF2 residue is expected to instill conformational bias into the intersaccharide torsions. Herein is described the synthesis and conformational behavior of the difluoromethylene linked C-glycoside of beta-D-galactopyranosyl-(1<-->1)-alpha-D-mannopyranoside. The synthesis centers on the formation of the galactose residue via an oxocarbenium ion-enol ether cyclization. Conformational analysis, using a combination of molecular mechanics, dynamics, and NMR spectroscopy, suggests that the difluoro-C-glycoside populates the non-exo-Gal/exo-Man conformer to a major extent (ca 50%), with a minor contribution ( approximately 15%) from the exo-Gal/exo-Man conformer that corresponds to the ground sate of the parent O-glycoside.
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Affiliation(s)
- Richard W Denton
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, NY 10021, USA
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11
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Hydrogen atom transfer experiments provide chemical evidence for the conformational differences between C- and O-glycosides. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.05.166] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Pérez-Castells J, Hernández-Gay JJ, Denton RW, Tony KA, Mootoo DR, Jiménez-Barbero J. The conformational behaviour and P-selectin inhibition of fluorine-containing sialyl LeX glycomimetics. Org Biomol Chem 2007; 5:1087-92. [PMID: 17377662 DOI: 10.1039/b615752a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combination of experimental J/NOE NMR data with molecular mechanics and dynamics calculations has been used to examine the conformational behaviour and assign the configuration of synthetically prepared epimeric 3-carboxymethyl-O-Gal-(1-->1)-alpha-Man-fluoro-C-glycosides. It is shown that the population distributions around the glycosidic linkages strongly depend on the configuration at the fluorinated carbon of the pseudoacetal residue. It is also shown that these compounds resemble the inhibition ability of sialyl LeX towards P-selectin.
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Affiliation(s)
- Javier Pérez-Castells
- Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain. .
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13
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The conformational behaviour of α,β-trehalose-like disaccharides and their C-glycosyl, imino-C-glycosyl and carbagalactose analogues depends on the chemical nature of the modification: an NMR investigation. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2004.11.072] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Gómez AM, Uriel C, Valverde S, Jarosz S, López J. Stereoselective synthesis of C-ketosides by Lewis acid-catalyzed C-glycosylation of alkynyl-ketoses. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)02145-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Jiménez-Barbero J, Demange R, Schenk K, Vogel P. Synthesis and solution conformational analysis of 2,3-anhydro-3-C-[(1R)-2,6-anhydro-1-deoxy-1-fluoro-D-glycero-D-gulo-heptitol-1-C-yl]-beta-D-gulo-furanose: first example of a monofluoromethylene-linked C-disaccharide. J Org Chem 2001; 66:5132-8. [PMID: 11463266 DOI: 10.1021/jo0102462] [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: 11/30/2022]
Abstract
Condensation of 2,3,4,6-tetra-O-benzyl-beta-D-glucopyranosylcarbaldehyde with isolevoglucosenone induced by Et(2)AlI, followed by epoxidation, gave an aldol that was fluorinated into a monofluoromethylene C-glucopyranoside that was converted into the title C-disaccharide 1. Its conformational behavior in water has been studied by using a combination of NMR spectroscopy (J and NOE data) and molecular mechanics calculations.
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Affiliation(s)
- J Jiménez-Barbero
- Section de Chimie, Université de Lausanne, BCH, CH-1015 Lausanne-Dorigny, Switzerland
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16
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Jiménez-Barbero J, Espinosa JF, Asensio JL, Cañada FJ, Poveda A. The conformation of C-glycosyl compounds. Adv Carbohydr Chem Biochem 2001; 56:235-84. [PMID: 11039113 DOI: 10.1016/s0065-2318(01)56006-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Carpintero M, Fernández-Mayoralas A, Jiménez-Barbero J. The Conformational Behaviour of Fucosyl and Carbafucosyl Mimetics in the Free and in the Protein-Bound States. European J Org Chem 2001. [DOI: 10.1002/1099-0690(200102)2001:4<681::aid-ejoc681>3.0.co;2-e] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Koketsu M, Kuberan B, Linhardt RJ. Stereoselective synthesis of the alpha-glycoside of a KDO "C"-disaccharide. Org Lett 2000; 2:3361-3. [PMID: 11029211 DOI: 10.1021/ol006458n] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reaction of tert-butyl (4,5,7, 8-tetra-O-acetyl-3-deoxy-alpha-D-manno-2-octulopyranosyl chloride)onate donor 7 with the 6-formylgalactopyranoside acceptor 4 in the presence of SmI(2) provided only the KDO alpha-C-disaccharide 8. The bulky tert-butyl ester in the donor was used to reverse the stereochemical outcome of C-glycosylation, stereoselectively forming the alpha-"C"-disaccharide of KDO.
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Affiliation(s)
- M Koketsu
- Departments of Chemistry, Medicinal and Natural Products Chemistry, Chemical and Biochemical Engineering, University of Iowa, Iowa City, Iowa 52242, USA
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