1
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Paulus J, Nachtigall B, Meyer P, Sewald N. RGD Peptidomimetic MMAE-Conjugate Addressing Integrin αVβ3-Expressing Cells with High Targeting Index. Chemistry 2023; 29:e202203476. [PMID: 36454662 DOI: 10.1002/chem.202203476] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/01/2022] [Accepted: 12/01/2022] [Indexed: 12/03/2022]
Abstract
Small molecule-drug conjugates (SMDCs) mimicking the RGD sequence (-Arg-Gly-Asp-) with a non-peptide moiety require a pharmacophore-independent attachment site. A library of 36 sulfonamide-modified RGD mimetics with nM to pM affinity for integrin αV β3 was synthesized and analysed via DAD mapping. The best structure of the conjugable RGD mimetic was used and a linker was attached to an aromatic ring by Negishi cross-coupling. The product retained high affinity and selectivity for integrin αV β3 . The conjugable RGD mimetic was then attached to an enzymatically cleavable GKGEVA linker equipped with a self-immolative PABC and the antimitotic drug monomethyl auristatin E (MMAE). The resulting SMDC preferred binding to integrin αV β3 over α5 β1 in a ratio of 1 : 4519 (ELISA) and showed selectivity for αV β3 -positive WM115 cells over αV β3 -negative M21-L cells in the in vitro cell adhesion assay as well as in cell viability assays with a targeting index of 134 (M21-L/WM115).
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Affiliation(s)
- Jannik Paulus
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Beate Nachtigall
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Peter Meyer
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
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2
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Malinowski M, Banoun C, Robichon M, Lubin‐Germain N, Ferry A. Glycosamine Derivatives through Metal‐Catalyzed C−N Bond Formation on Protected and Unprotected 2‐Iodoglycals. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001618] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Maciej Malinowski
- CY Cergy-Paris Université, BioCIS, CNRS 5 mail Gay-Lussac 95000 Cergy-Pontoise cedex France
- Faculty of Chemistry Warsaw University of Technology ul. Noakowskiego 3 00-664 Warsaw Poland
| | - Camille Banoun
- CY Cergy-Paris Université, BioCIS, CNRS 5 mail Gay-Lussac 95000 Cergy-Pontoise cedex France
- Université Paris-Saclay, BioCIS, CNRS 5, rue J−B Clément 92296 Châtenay-Malabry cedex France
| | - Morgane Robichon
- CY Cergy-Paris Université, BioCIS, CNRS 5 mail Gay-Lussac 95000 Cergy-Pontoise cedex France
- Université Paris-Saclay, BioCIS, CNRS 5, rue J−B Clément 92296 Châtenay-Malabry cedex France
| | - Nadège Lubin‐Germain
- CY Cergy-Paris Université, BioCIS, CNRS 5 mail Gay-Lussac 95000 Cergy-Pontoise cedex France
- Université Paris-Saclay, BioCIS, CNRS 5, rue J−B Clément 92296 Châtenay-Malabry cedex France
| | - Angélique Ferry
- CY Cergy-Paris Université, BioCIS, CNRS 5 mail Gay-Lussac 95000 Cergy-Pontoise cedex France
- Université Paris-Saclay, BioCIS, CNRS 5, rue J−B Clément 92296 Châtenay-Malabry cedex France
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3
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Cristófalo AE, Uhrig ML. Synthetic Studies on the Incorporation of N-Acetylallosamine in Hyaluronic Acid-Inspired Thiodisaccharides. Molecules 2021; 26:E180. [PMID: 33401465 PMCID: PMC7796257 DOI: 10.3390/molecules26010180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 12/16/2022] Open
Abstract
Two approaches for the synthesis of the thiodisaccharide β-S-GlcA(1→3)β-S-AllNAc are described here. The target disaccharide was a C-3 epimer and thio-analogue of the hyaluronic acid repetitive unit, tuned with a thiopropargyl anomeric group for further click conjugation. Thus, we analysed and tested two convenient sequences, combining the two key steps required to introduce the thioglycosidic bonds and consequently reach the target molecule: the SN2 substitution of a good leaving group (triflate) present at C-3 of a GlcNAc derivative and the introduction of the anomeric thiopropargyl substituent. The use of a 2-azido precursor showed to be a convenient substrate for the SN2 step. Nevertheless, further protecting group manipulation and the introduction of the thiopropargyl anomeric residue were then required. This approach showed to provide access to a variety of thiodisaccharide derivatives as interesting building blocks for the construction of neoglycoconjugates.
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Affiliation(s)
- Alejandro E. Cristófalo
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, Buenos Aires C1428EGA, Argentina;
- Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), CONICET-Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina
| | - María Laura Uhrig
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, Buenos Aires C1428EGA, Argentina;
- Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR), CONICET-Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina
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4
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Yagami N, Vibhute AM, Tanaka HN, Komura N, Imamura A, Ishida H, Ando H. Stereoselective Synthesis of Diglycosyl Diacylglycerols with Glycosyl Donors Bearing a β-Stereodirecting 2,3-Naphthalenedimethyl Protecting Group. J Org Chem 2020; 85:16166-16181. [PMID: 33253577 DOI: 10.1021/acs.joc.0c02121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Diglycosyl diacylglycerols (DGDGs) are major components of Gram-positive bacterial plasma membranes and are involved in the immune response systems. The chemical synthesis of DGDGs has been highly demanded, as it will allow the elucidation of their biological functions at the molecular level. In this study, we have developed a novel β-stereodirecting 2,3-naphthalenedimethyl (NapDM) protecting group that is orthogonal to protecting groups commonly used in oligosaccharide synthesis. The NapDM group can be easily cleaved under TFA-mediated acidic conditions. Futhermore, we demonstrated the application of this protecting group to an acyl protecting-group-free strategy by utilizing the NapDM group for the synthesis of DGDGs. This strategy features the use of the β-stereodirecting NapDM group as an acid-cleavable permanent protecting group and late-stage glycosylation of monoglycosyl diacylglycerol acceptors, enabling the stereoselective synthesis of three different bacterial DGDGs with unsaturated fatty acid chain(s).
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Affiliation(s)
- Nahoko Yagami
- Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Amol M Vibhute
- Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Hide-Nori Tanaka
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Naoko Komura
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Akihiro Imamura
- Department of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Hideharu Ishida
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Department of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Hiromune Ando
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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5
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Yeh CJ, Zulueta MML, Li YK, Hung SC. Synthesis of hyaluronic acid oligosaccharides with a GlcNAc-GlcA repeating pattern and their binding affinity with CD44. Org Biomol Chem 2020; 18:5370-5387. [PMID: 32638804 DOI: 10.1039/d0ob01048k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hyaluronic acid (HA) is a ubiquitous glycosaminoglycan in the extracellular matrix and a ligand of CD44, a transmembrane glycoprotein that is important in cell migration. Crystal and NMR studies found a hexasaccharide of the pattern (GlcA-GlcNAc)3 as the shortest HA that could bind to CD44, but molecular dynamics simulations indicated that a tetrasaccharide of the pattern (GlcNAc-GlcA)2 is the key structure interacting with CD44. Access to oligomers with such a repeat pattern is crucial in binding studies with CD44. Here we developed a synthetic procedure to afford the HA oligosaccharides with the GlcNAc-GlcA repeating unit and measured the binding interaction between these sugars and human CD44 by isothermal titration calorimetry (ITC). During the chemical synthesis, we successfully generated the β-glycosidic bond in the absence of neighbouring group participation and overcome the issues in the oxidation step. In addition, ammonia-free dissolving metal reduction for debenzylation and azido reduction has been applied in carbohydrate synthesis for the first time. ITC analysis revealed that the HA tetrasaccharide (GlcNAc-GlcA)2 could indeed interact and bind to the human CD44.
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Affiliation(s)
- Che-Jui Yeh
- Genomics Research Center, Academia Sinica, 128, Section 2, Academia Road, Taipei 115, Taiwan. and Department of Applied Chemistry, National Chiao Tung University, 1001, Ta-Hsueh Road, Hsinchu 300, Taiwan.
| | - Medel Manuel L Zulueta
- Institute of Chemistry, College of Science, University of the Philippines, Diliman, Quezon City 1101, Philippines
| | - Yaw-Kuen Li
- Department of Applied Chemistry, National Chiao Tung University, 1001, Ta-Hsueh Road, Hsinchu 300, Taiwan.
| | - Shang-Cheng Hung
- Genomics Research Center, Academia Sinica, 128, Section 2, Academia Road, Taipei 115, Taiwan.
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6
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Cristófalo AE, Nieto PM, Uhrig ML. Synthesis of (1→3) Thiodisaccharides of GlcNAc and the Serendipitous Formation of 2,3-Dideoxy-(1→2)-thiodisaccharides through a Vinyl Azide Intermediate. J Org Chem 2019; 85:306-317. [PMID: 31802661 DOI: 10.1021/acs.joc.9b01883] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The syntheses of β-S-GlcA(1→3)GlcNAc and β-S-Gal(1→3)GlcNAc thiodisaccharides, which can be considered mimetics of the repeating units of hyaluronan and keratan respectively, were achieved by SN2 displacement of a triflate group allocated at the 3-position of a convenient 2-azido-4,6-O-benzylidene-2-deoxy-β-d-allopyranose precursor by the corresponding nucleophilic suitable protected thioaldoses derived from glucuronic acid (GlcA) and galactose (Gal). The study of the reaction led to the finding that the vinyl azide formed by competitive E2 reaction of the mentioned triflate was an interesting precursor of a new kind of 2,3-dideoxy-2-azido-(1→2) thiodisaccharides through an addition reaction. Determination of the stereochemistry of the new stereocenter at C-2 was achieved by NOESY experiments. Final protecting group manipulation of the (1→3) thiodisaccharides led to a family of derivatives that could be used as building blocks for the synthesis of complex glycomimetics.
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Affiliation(s)
- Alejandro Ezequiel Cristófalo
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires , Ciudad Universitaria , Pabellón 2, C1428EGA Buenos Aires , Argentina.,CONICET-Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR) , C1428EGA Buenos Aires , Argentina
| | - Pedro M Nieto
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), cicCartuja , CSIC and Universidad de Sevilla , 41092 Sevilla , España
| | - María Laura Uhrig
- Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires , Ciudad Universitaria , Pabellón 2, C1428EGA Buenos Aires , Argentina.,CONICET-Universidad de Buenos Aires, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR) , C1428EGA Buenos Aires , Argentina
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7
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Komura N, Kato K, Udagawa T, Asano S, Tanaka HN, Imamura A, Ishida H, Kiso M, Ando H. Constrained sialic acid donors enable selective synthesis of α-glycosides. Science 2019; 364:677-680. [DOI: 10.1126/science.aaw4866] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 04/01/2019] [Indexed: 12/24/2022]
Abstract
Sialic acid is a sugar residue present in many biologically significant glycans of mammals, commonly as a terminal α-glycoside. The chemical structure of sialic acid, which features an anomeric center with carboxyl and methylene substituents, poses a challenge for synthesis of the α-glycoside, thus impeding biological and therapeutic studies on sialic acid–containing glycans. We present a robust method for the selective α-glycosidation of sialic acid using macrobicyclized sialic acid donors as synthetic equivalents of structurally constrained oxocarbenium ions to impart stereoselectivity. We demonstrate the power of our method by showcasing broad substrate scope and applicability in the preparation of diverse sialic acid–containing architectures.
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8
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Zeng J, Liu Y, Chen W, Zhao X, Meng L, Wan Q. Glycosyl Sulfoxides in Glycosylation Reactions. Top Curr Chem (Cham) 2018; 376:27. [DOI: 10.1007/s41061-018-0205-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 05/31/2018] [Indexed: 01/01/2023]
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9
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Tiwari V, Badavath VN, Singh AK, Kandasamy J. A highly efficient TEMPO mediated oxidation of sugar primary alcohols into uronic acids using 1-chloro-1,2-benziodoxol-3(1H)-one at room temperature. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.05.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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10
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Ghosh S, Nishat S, Andreana PR. Synthesis of an Aminooxy Derivative of the Tetrasaccharide Repeating Unit of Streptococcus dysgalactiae 2023 Polysaccharide for a PS A1 Conjugate Vaccine. J Org Chem 2016; 81:4475-84. [DOI: 10.1021/acs.joc.6b00195] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Samir Ghosh
- Department of Chemistry and Biochemistry and School of Green Chemistry
and Engineering, University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, United States
| | - Sharmeen Nishat
- Department of Chemistry and Biochemistry and School of Green Chemistry
and Engineering, University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, United States
| | - Peter R. Andreana
- Department of Chemistry and Biochemistry and School of Green Chemistry
and Engineering, University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, United States
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11
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Mukherjee MM, Basu N, Chaudhury A, Ghosh R. Efficient one-pot per-O-acetylation–thioglycosidation of native sugars, 4,6-O-arylidenation and one-pot 4,6-O-benzylidenation–acetylation of S-/O-glycosides catalyzed by Mg(OTf)2. RSC Adv 2016. [DOI: 10.1039/c6ra23198e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sequential one-pot per-O-acetylation–S-/O-glycosidation under neat condition, regioselective 4,6-O-arylidenation and sequential one-pot benzylidenation–acetylation of Mg(OTf)2as non-hygroscopic, recyclable catalyst are reported.
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Affiliation(s)
| | - Nabamita Basu
- Department of Chemistry
- Jadavpur University
- Kolkata
- India
| | | | - Rina Ghosh
- Department of Chemistry
- Jadavpur University
- Kolkata
- India
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12
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Ariyakumaran R, Pokrovskaya V, Little DJ, Howell PL, Nitz M. Direct Staudinger-Phosphonite Reaction Provides Methylphosphonamidates as Inhibitors of CE4 De-N-acetylases. Chembiochem 2015; 16:1350-6. [PMID: 25864869 DOI: 10.1002/cbic.201500091] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Indexed: 11/09/2022]
Abstract
De-N-acetylases of β-(1→6)-D-N-acetylglucosamine polymers (PNAG) and β-(1→4)-D-N-acetylglucosamine residues in peptidoglycan are attractive targets for antimicrobial agents. PNAG de-N-acetylases are necessary for biofilm formation in numerous pathogenic bacteria. Peptidoglycan de-N-acetylation facilitates bacterial evasion of innate immune defenses. To target these enzymes, transition-state analogue inhibitors containing a methylphosphonamidate have been synthesized through a direct Staudinger-phosphonite reaction. The inhibitors were tested on purified PgaB, a PNAG de-N-acetylase from Escherichia coli, and PgdA, a peptidoglycan de-N-acetylase from Streptococcus pneumonia. Herein, we describe the most potent inhibitor of peptidoglycan de-N-acetylases reported to date (Ki =80 μM). The minimal inhibition of PgaB observed provides insight into key structural and functional differences in these enzymes that will need to be considered during the development of future inhibitors.
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Affiliation(s)
- Rishikesh Ariyakumaran
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6 (Canada)
| | - Varvara Pokrovskaya
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6 (Canada)
| | - Dustin J Little
- Program in Molecular Structure and Function, The Hospital for Sick Children and Department of Biochemistry, University of Toronto, 555 University Avenue, Toronto, Ontario M5G 1X8 (Canada)
| | - P Lynne Howell
- Program in Molecular Structure and Function, The Hospital for Sick Children and Department of Biochemistry, University of Toronto, 555 University Avenue, Toronto, Ontario M5G 1X8 (Canada)
| | - Mark Nitz
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6 (Canada).
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13
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Hattie M, Ito T, Debowski AW, Arakawa T, Katayama T, Yamamoto K, Fushinobu S, Stubbs KA. Gaining insight into the catalysis by GH20 lacto-N-biosidase using small molecule inhibitors and structural analysis. Chem Commun (Camb) 2015; 51:15008-11. [DOI: 10.1039/c5cc05494j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Synthesis and structural analysis of rationally developed inhibitors.
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Affiliation(s)
- Mitchell Hattie
- School of Chemistry and Biochemistry
- The University of Western Australia
- Crawley
- Australia
| | - Tasuku Ito
- National Food Research Institute
- National Agriculture and Food Research Organization
- Tsukuba
- Japan
| | - Aleksandra W. Debowski
- School of Chemistry and Biochemistry
- The University of Western Australia
- Crawley
- Australia
- School of Pathology and Laboratory Medicine
| | - Takatoshi Arakawa
- Department of Biotechnology
- The University of Tokyo
- Tokyo 113-8657
- Japan
| | - Takane Katayama
- Graduate School of Biostudies
- Kyoto University
- Kyoto 606-8502
- Japan
| | - Kenji Yamamoto
- Research Institute for Bioresources and Biotechnology
- Ishikawa Prefectural University
- Nonoichi
- Japan
| | - Shinya Fushinobu
- Department of Biotechnology
- The University of Tokyo
- Tokyo 113-8657
- Japan
| | - Keith A. Stubbs
- School of Chemistry and Biochemistry
- The University of Western Australia
- Crawley
- Australia
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14
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Macchione G, de Paz JL, Nieto PM. Synthesis of hyaluronic acid oligosaccharides and exploration of a fluorous-assisted approach. Carbohydr Res 2014; 394:17-25. [DOI: 10.1016/j.carres.2014.05.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 05/06/2014] [Accepted: 05/07/2014] [Indexed: 11/30/2022]
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15
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Konishi M, Imamura A, Fujikawa K, Ando H, Ishida H, Kiso M. Extending the glucosyl ceramide cassette approach: application in the total synthesis of ganglioside GalNAc-GM1b. Molecules 2013; 18:15153-81. [PMID: 24335571 PMCID: PMC6269929 DOI: 10.3390/molecules181215153] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 12/01/2013] [Accepted: 12/02/2013] [Indexed: 11/23/2022] Open
Abstract
The development of a novel cyclic glucosyl ceramide cassette acceptor for efficient glycolipid syntheses was investigated. p-Methoxybenzyl (PMB) groups were selected as protecting groups at C2 and C3 of the glucose residue with the aim of improving the functionality of the cassette acceptor. The choice of the PMB group resulted in a loss of β-selectivity, which was corrected by using an appropriate tether to control the spatial arrangement and the nitrile solvent effect. To investigate the effect of linker structure on the β-selectivity of intramolecular glycosylation, several linkers for tethering the glucose and ceramide moiety were designed and prepared, namely, succinyl, glutaryl, dimethylmalonyl, and phthaloyl esters. The succinyl ester linker was the best for accessing the cassette form. The newly designed glucosyl ceramide cassette acceptor was then applied in the total synthesis of ganglioside GalNAc-GM1b.
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Affiliation(s)
- Miku Konishi
- Department of Applied Bio-Organic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan; E-Mails: (M.K.); (K.F.); (H.A.); (M.K.)
- Institute for Integrated Cell-Material Sciences, Kyoto University, 69 Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Akihiro Imamura
- Department of Applied Bio-Organic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan; E-Mails: (M.K.); (K.F.); (H.A.); (M.K.)
- Authors to whom correspondence should be addressed; E-Mails: (A.I.); (H.I.); Tel.: +81-58-293-3453 (A.I.); Fax: +81-58-293-2918 (H.I.)
| | - Kohki Fujikawa
- Department of Applied Bio-Organic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan; E-Mails: (M.K.); (K.F.); (H.A.); (M.K.)
- Institute for Integrated Cell-Material Sciences, Kyoto University, 69 Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiromune Ando
- Department of Applied Bio-Organic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan; E-Mails: (M.K.); (K.F.); (H.A.); (M.K.)
- Institute for Integrated Cell-Material Sciences, Kyoto University, 69 Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hideharu Ishida
- Department of Applied Bio-Organic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan; E-Mails: (M.K.); (K.F.); (H.A.); (M.K.)
- Authors to whom correspondence should be addressed; E-Mails: (A.I.); (H.I.); Tel.: +81-58-293-3453 (A.I.); Fax: +81-58-293-2918 (H.I.)
| | - Makoto Kiso
- Department of Applied Bio-Organic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan; E-Mails: (M.K.); (K.F.); (H.A.); (M.K.)
- Institute for Integrated Cell-Material Sciences, Kyoto University, 69 Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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16
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Ferrer Lopez A, Jacquinet JC, Lopin-Bon C. From Chondroitin Polymer to Size-Defined Hyaluronan Oligosaccharides. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300893] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Lázár L, Mező E, Herczeg M, Lipták A, Antus S, Borbás A. Synthesis of the non-reducing end trisaccharide of the antithrombin-binding domain of heparin and its bioisosteric sulfonic acid analogues. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.06.081] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Enugala R, Carvalho LCR, Dias Pires MJ, Marques MMB. Stereoselective Glycosylation of Glucosamine: The Role of the
N
‐Protecting Group. Chem Asian J 2012; 7:2482-501. [DOI: 10.1002/asia.201200338] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Indexed: 12/17/2022]
Affiliation(s)
- Ramu Enugala
- Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica 2829‐516 Caparica (Portugal), Fax: (+351) 21‐294‐8550
| | - Luísa C. R. Carvalho
- Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica 2829‐516 Caparica (Portugal), Fax: (+351) 21‐294‐8550
| | - Marina J. Dias Pires
- Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica 2829‐516 Caparica (Portugal), Fax: (+351) 21‐294‐8550
| | - M. Manuel B. Marques
- Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica 2829‐516 Caparica (Portugal), Fax: (+351) 21‐294‐8550
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19
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Wei G, Kumar V, Xue J, Locke RD, Matta KL. The first chemical synthesis of novel MeO-3-GlcUA derivative of hyaluronan-based disaccharide to elucidate the catalytic mechanism of hyaluronic acid synthases (HASs). Tetrahedron Lett 2009; 50:6543-6545. [PMID: 20161585 PMCID: PMC2808046 DOI: 10.1016/j.tetlet.2009.09.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The first chemical synthesis of MeO-3-GlcUAβ(1→3)GlcNAc-UDP to elucidate the catalytic mechanism of hyaluronic acid synthases (HASs) is described. Construction of the desired β(1→3)-linked disaccharide 10 was achieved very efficiently by coupling MeO-3-GlcUA donor 3 with the suitable protected GlcNTroc acceptor 4 using BF(3(.) )Et(2)O as Lewis acid. Chemoselective removal of anomeric NAP, phosphorylation, hydrogenation, coupling with UMP-morpholidate and finally complete deprotection gave the target compound 1 in good yield.
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Affiliation(s)
- Guohua Wei
- Cancer Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
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20
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Wei G, Kumar V, Xue J, Locke RD, Matta KL. The first chemical synthesis of F-4-GlcAβ(1→3)GlcNAc-UDP with the potential of novel substrate and enzyme inhibitor for hyaluronic acid synthases (HASs). Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Xue J, Kumar V, Khaja SD, Chandrasekaran E, Locke RD, Matta KL. Syntheses of fluorine-containing mucin core 2/core 6 structures using novel fluorinated glucosaminyl donors. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.07.089] [Citation(s) in RCA: 7] [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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22
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Dinkelaar J, Gold H, Overkleeft HS, Codée JDC, van der Marel GA. Synthesis of Hyaluronic Acid Oligomers using Chemoselective and One-Pot Strategies. J Org Chem 2009; 74:4208-16. [DOI: 10.1021/jo9003713] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jasper Dinkelaar
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Henrik Gold
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Herman S. Overkleeft
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Jeroen D. C. Codée
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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23
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van den Bos LJ, Codée JDC, Litjens REJN, Dinkelaar J, Overkleeft HS, van der Marel GA. Uronic Acids in Oligosaccharide Synthesis. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700101] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Leendert J. van den Bos
- Leiden Institute of Chemistry, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Jeroen D. C. Codée
- Leiden Institute of Chemistry, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Remy E. J. N. Litjens
- Leiden Institute of Chemistry, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Jasper Dinkelaar
- Leiden Institute of Chemistry, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Herman S. Overkleeft
- Leiden Institute of Chemistry, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands
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24
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Huang L, Teumelsan N, Huang X. A facile method for oxidation of primary alcohols to carboxylic acids and its application in glycosaminoglycan syntheses. Chemistry 2007; 12:5246-52. [PMID: 16637084 PMCID: PMC1986577 DOI: 10.1002/chem.200600290] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A convenient two-step, one-pot procedure was developed for the conversion of primary alcohols to carboxylic acids. The alcohol was first treated with NaOCl and TEMPO under phase-transfer conditions, followed by NaClO2 oxidation in one pot. This reaction is applicable to a wide range of alcohols and the mild reaction conditions are compatible with many sensitive functional groups, including electron-rich aromatic rings, acid-labile isopropylidene ketal and glycosidic linkages, and oxidation-prone thioacetal, p-methoxybenzyl, and allyl moieties. Several glycosaminoglycans such as heparin, chondroitin, and hyaluronic acid oligosaccharides have been synthesized in high yields by using this new oxidation protocol.
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Affiliation(s)
| | | | - Xuefei Huang
- Department of Chemistry, The University of Toledo 2801 W. Bancroft St. MS 602, Toledo, OH 43606 (USA) Fax: (+1)419-530-4033
- E-mail:
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25
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Ren ZX, Yang Q, Price KN, Chen T, Nygren C, Turner JFC, Baker DC. Synthesis of a C-linked hyaluronic acid disaccharide mimetic. Carbohydr Res 2007; 342:1668-79. [PMID: 17572398 PMCID: PMC1989762 DOI: 10.1016/j.carres.2007.05.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2007] [Revised: 05/26/2007] [Accepted: 05/29/2007] [Indexed: 11/21/2022]
Abstract
The synthesis of a C-disaccharide that is designed as a mimetic for the repeating unit disaccharide of hyaluronic acid is described. The target compound was obtained via the SmI2-promoted coupling reaction of the sulfone, 2-acetamido-4,6-O-benzylidene-3-O-tert-butyldimethylsilyl-1,2-dideoxy-1-pyridinylsulfonyl-beta-D-glucopyranose (6), and the aldehyde, p-methoxyphenyl 2,3-di-O-benzyl-4-deoxy-4-C-formyl-6-O-p-methoxybenzyl-beta-D-glucopyranoside (14).
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Affiliation(s)
| | | | | | | | | | | | - David C. Baker
- *Corresponding author. Ph: +1-865-974-1066; fax: +1-865-974-1536; e-mail:
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26
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Bongat AFG, Demchenko AV. Recent trends in the synthesis of O-glycosides of 2-amino-2-deoxysugars. Carbohydr Res 2007; 342:374-406. [PMID: 17125757 DOI: 10.1016/j.carres.2006.10.021] [Citation(s) in RCA: 171] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2006] [Revised: 10/13/2006] [Accepted: 10/20/2006] [Indexed: 11/23/2022]
Abstract
The discovery of new methods for stereoselective glycoside synthesis and convergent oligosaccharide assembly has been critical for the area of glycosciences. At the heart of this account is the discussion of the approaches for stereoselective synthesis of glycosides of 2-amino-2-deoxysugars that have emerged during the past two decades. The introductory part provides general background information and describes the key features and challenges for the synthesis of this class of compounds. Subsequently, major approaches to the synthesis of 2-amino-2-deoxyglycosides are categorized and discussed. Each subsection elaborates on the introduction (or protection) of the amino functionality, synthesis of glycosyl donors by introduction of a suitable leaving group, and glycosidation. Wherever applicable, the deprotection of a temporary amino group substituent and the conversion onto the natural acetamido functionality is described. The conclusions part evaluates the current standing in the field and provides a perspective for future developments.
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Affiliation(s)
- Aileen F G Bongat
- Department of Chemistry and Biochemistry, University of Missouri--St. Louis, One University Blvd., St. Louis, MO 63121, USA
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27
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Abstract
Highly efficient syntheses of hyaluronic acid oligosaccharides have been accomplished through the pre-activation based iterative one-pot strategy. A series of oligosaccharides ranging from di- to hexasaccharides were rapidly assembled using only near stoichiometric amounts of the building blocks without aglycon adjustment or purifications of intermediate oligosaccharides. Deprotection and oxidation protocols were developed for protective group removal and oxidation-state adjustment. The availability of such structurally well defined synthetic hyaluronic acid oligosaccharides will greatly facilitate the establishment of detailed structure-function relationships.
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Affiliation(s)
- Lijun Huang
- [a] Department of Chemistry, The University of
Toledo 2801 W. Bancroft St. MS 602, Toledo OH 43606 (USA)
| | - Xuefei Huang
- [a] Department of Chemistry, The University of
Toledo 2801 W. Bancroft St. MS 602, Toledo OH 43606 (USA)
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28
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Peri F, Nicotra F, Leslie CP, Micheli F, Seneci P, Marchioro C. d‐Glucose as a Regioselectively Addressable Scaffold for Combinatorial Chemistry on Solid Phase. J Carbohydr Chem 2006. [DOI: 10.1081/car-120019014] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Francesco Peri
- a Department of Biotechnology and Biosciences , University of Milano–Bicocca , Piazza Della Scienza, 2, I‐20126, Italy
| | - Francesco Nicotra
- a Department of Biotechnology and Biosciences , University of Milano–Bicocca , Piazza Della Scienza, 2, I‐20126, Italy
| | - Colin P. Leslie
- b Medicines Research Centre , GlaxoSmithKline SpA , Via Fleming 4, Verona, 37135, Italy
| | - Fabrizio Micheli
- b Medicines Research Centre , GlaxoSmithKline SpA , Via Fleming 4, Verona, 37135, Italy
| | - Pierfausto Seneci
- b Medicines Research Centre , GlaxoSmithKline SpA , Via Fleming 4, Verona, 37135, Italy
| | - Carla Marchioro
- b Medicines Research Centre , GlaxoSmithKline SpA , Via Fleming 4, Verona, 37135, Italy
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29
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Litjens REJN, den Heeten R, Timmer MSM, Overkleeft HS, van der Marel GA. An Expedient Synthesis of the Repeating Unit of the Acidic Polysaccharide of the Bacteriolytic Complex of Lysoamidase. Chemistry 2005; 11:1010-6. [PMID: 15614860 DOI: 10.1002/chem.200400862] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The first synthesis of the trisaccharide repeating unit of the acidic polysaccharide of the bacteriolytic complex of lysoamidase is presented. The construction is based on a linear glycosylation strategy that starts from the reducing end and employs thio- and selenoglycosides in a highly stereoselective manner by a single set of activation conditions. The thus-formed trisaccharide is selectively deprotected and oxidised, after which a final deprotection step furnishes the desired repeating unit.
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Affiliation(s)
- Remy E J N Litjens
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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30
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Yamada H, Tanigakiuchi K, Nagao K, Okajima K, Mukae T. The first ring inversion of pyranoses induced by bulky silyl protections at the 2- and 3-positions. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.10.078] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Adamski-Werner SL, Yeung BKS, Miller-Deist LA, Petillo PA. Gram-scale syntheses of the (1→3)-linked and (1→4)-linked hyaluronan disaccharides. Carbohydr Res 2004; 339:1255-62. [PMID: 15113662 DOI: 10.1016/j.carres.2004.03.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2003] [Accepted: 03/02/2004] [Indexed: 11/22/2022]
Abstract
The first gram-scale syntheses of two hyaluronan disaccharides are described. Construction of the (1-->4)-linked disaccharide 12 was achieved in 12% overall yield using 2,3-bis-dimethyl acetal protection in combination with chlorosilane-induced carbamate cleavage methodologies. The uronic acid functionality was installed using TEMPO oxidation with NaOCl as the hypochlorite source. The (1-->3)-linked disaccharide 18 was achieved in 7% overall yield utilizing acetonide protection in addition to the chlorosilane-induced carbamate cleavage methodology and the TEMPO oxidation.
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Affiliation(s)
- Sara L Adamski-Werner
- Department of Chemistry, University of Illinois, 600 S. Mathews Ave., Urbana, IL 61801, USA
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32
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Lin F, Peng W, Xu W, Han X, Yu B. A facile preparation of uronates via selective oxidation with TEMPO/KBr/Ca(OCl)2 under aqueous conditions. Carbohydr Res 2004; 339:1219-23. [PMID: 15063215 DOI: 10.1016/j.carres.2004.02.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2003] [Accepted: 02/03/2004] [Indexed: 11/19/2022]
Abstract
Addition of solid Ca(OCl)(2) as the terminal oxidant in the TEMPO-mediated selective oxidation has the benefit of easier operation. A variety of partially protected saccharide derivatives (1a-l) have been successfully converted into the corresponding uronate derivatives, including disaccharide building blocks for GAG fragments and precursors to saponins. The beneficial effect of Aliquat 336 was also disclosed in the oxidation of certain substrates.
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Affiliation(s)
- Feng Lin
- State Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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33
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Iyer SS, Rele SM, Baskaran S, Chaikof EL. Design and synthesis of hyaluronan-mimetic gemini disaccharides. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(02)01567-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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35
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Yu B, Zhu X, Hui Y. 6-S-Phenyl-glycopyranosides as ready precursors to the synthesis of glycuronides. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)00959-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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36
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Boulineau FP, Wei A. Stereoselective synthesis of [13C]methyl 2-[15N]amino-2-deoxy-beta-D-glucopyranoside derivatives. Carbohydr Res 2001; 334:271-9. [PMID: 11527528 DOI: 10.1016/s0008-6215(01)00203-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Efficient syntheses of three [13C]methyl 2-[15N]amino-2-deoxy-beta-D-glucopyranoside derivatives are described. Amination of the D-glucal with (saltmen)Mn(15N) proceeded with 11:1 stereoselectivity favoring the gluco configuration; subsequent methylation of the [15N]lactol using [13C]iodomethane and silver(I) oxide afforded the doubly labeled beta glucoside in high yield. This compound served as the common precursor for three [13C]methyl 2-[15N]aminoglucosides: (2-[15N]trifluoroacetyl-), (2-[15N]acetyl-), and (2-[15N]azido-). Selected heteronuclear coupling constants are reported.
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Affiliation(s)
- F P Boulineau
- Department of Chemistry, Purdue University, 1393 Brown Building, West Lafayette, IN 47907-1393, USA
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37
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Söderman P, Widmalm G. Synthesis of Trisaccharides Related to the Branching Region of the O‐Antigen Polysaccharides from
Escherichia coli
O35 and
Salmonella arizona
O62. European J Org Chem 2001. [DOI: 10.1002/1099-0690(200109)2001:18<3453::aid-ejoc3453>3.0.co;2-#] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Peter Söderman
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Swede
| | - Göran Widmalm
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Swede
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38
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Yeung BK, Adamski-Werner SL, Bernard JB, Poulenat G, Petillo PA. The mild cleavage of 2-amino-2-deoxy-D-glucoside methoxycarbonyl derivatives. Org Lett 2000; 2:3135-8. [PMID: 11009364 DOI: 10.1021/ol0063353] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The conversion of methyl carbamate to the corresponding free amine is described for a series of 2-amino-2-deoxy-D-glucosamine derivatives. Cleavage of methoxycarbonyl moiety with MeSiCl(3) and triethylamine in dry THF at 60 degrees C and subsequent aqueous hydrolysis yields the free amine in 54 to 93% yields. The selective cleavage of methyl carbamates with MeSiCl(3) in the presence of a 2,2,2-trichloroethoxycarbonyl group or 2-azido glycosides affords selectively, orthogonal N-deprotected carbohydrates.
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Affiliation(s)
- B K Yeung
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, USA
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39
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Abstract
6-Phenylthio-6-deoxy-D-glucopyranosides were easily prepared from 6-hydroxy-D-glucopyranosides and employed as effective glycosyl donors or acceptors. And the resulting coupling products were then readily converted into the corresponding D-glucuronide-containing compounds.
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Affiliation(s)
- B Yu
- State Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China.
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