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Apostol CR, Hay M, Polt R. Glycopeptide drugs: A pharmacological dimension between "Small Molecules" and "Biologics". Peptides 2020; 131:170369. [PMID: 32673700 PMCID: PMC7448947 DOI: 10.1016/j.peptides.2020.170369] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/12/2020] [Accepted: 07/06/2020] [Indexed: 12/16/2022]
Abstract
Peptides are an important class of molecules with diverse biological activities. Many endogenous peptides, especially neuropeptides and peptide hormones, play critical roles in development and regulating homeostasis. Furthermore, as drug candidates their high receptor selectivity and potent binding leads to reduced off-target interactions and potential negative side effects. However, the therapeutic potential of peptides is severely hampered by their poor stability in vivo and low permeability across biological membranes. Several strategies have been successfully employed over the decades to address these concerns, and one of the most promising strategies is glycosylation. It has been demonstrated in numerous cases that glycosylation is an effective synthetic approach to improve the pharmacokinetic profiles and membrane permeability of peptides. The effects of glycosylation on peptide stability and peptide-membrane interactions in the context of blood-brain barrier penetration will be explored. Numerous examples of glycosylated analogues of endogenous peptides targeting class A and B G-protein coupled receptors (GPCRs) with an emphasis on O-linked glycopeptides will be reviewed. Notable examples of N-, S-, and C-linked glycopeptides will also be discussed. A small section is devoted to synthetic methods for the preparation of glycopeptides and requisite amino acid glycoside building blocks.
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Affiliation(s)
- Christopher R Apostol
- Dept. of Chemistry & Biochemistry, BIO5, The University of Arizona, Tucson, AZ 85721, USA.
| | - Meredith Hay
- Evelyn F. McKnight Brain Institute, Dept. of Physiology, The University of Arizona, Tucson, AZ 85724, USA
| | - Robin Polt
- Dept. of Chemistry & Biochemistry, BIO5, The University of Arizona, Tucson, AZ 85721, USA
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2
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Foucart Q, Marrot J, Désiré J, Blériot Y. Site-Selective Debenzylation of C-Allyl Iminosugars Enables Their Stereocontroled Structure Diversification at the C-2 Position. Org Lett 2019; 21:4821-4825. [DOI: 10.1021/acs.orglett.9b01712] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Quentin Foucart
- Université de Poitiers, IC2MP, UMR CNRS 7285, Equipe “Synthèse Organique”,
Groupe Glycochimie, 4 rue Michel Brunet, Poitiers 86073 Cedex 9, France
| | - Jérôme Marrot
- Institut Lavoisier de Versailles, UMR-CNRS 8180,
Université de Versailles, 45 avenue des États-Unis, Versailles 78035 Cedex, France
| | - Jérôme Désiré
- Université de Poitiers, IC2MP, UMR CNRS 7285, Equipe “Synthèse Organique”,
Groupe Glycochimie, 4 rue Michel Brunet, Poitiers 86073 Cedex 9, France
| | - Yves Blériot
- Université de Poitiers, IC2MP, UMR CNRS 7285, Equipe “Synthèse Organique”,
Groupe Glycochimie, 4 rue Michel Brunet, Poitiers 86073 Cedex 9, France
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3
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Guisot NES, Ella Obame I, Ireddy P, Nourry A, Saluzzo C, Dujardin G, Dubreuil D, Pipelier M, Guillarme S. Reaction of Glyconitriles with Organometallic Reagents: Access to Acyl β-C-Glycosides. J Org Chem 2016; 81:2364-71. [PMID: 26926714 DOI: 10.1021/acs.joc.5b02853] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new strategy for the synthesis of acyl β-C-glycosides is described. The reactivity of glyconitriles toward organometallic reagents such as organomagnesium or organolithium derivatives was studied, affording acyl β-C-glycosides in moderate to good yields. In this study, glycal formation was efficiently prevented by deprotonating the hydroxyl group in position 2 of the glyconitriles during the process.
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Affiliation(s)
- Nicolas E S Guisot
- Université du Maine, Institut des Molécules et Matériaux du Mans , UMR CNRS 6283, Faculté des Sciences, Avenue O. Messiaen, 72085 Le Mans cedex 9, France
| | - Idriss Ella Obame
- Université du Maine, Institut des Molécules et Matériaux du Mans , UMR CNRS 6283, Faculté des Sciences, Avenue O. Messiaen, 72085 Le Mans cedex 9, France
| | - Prathap Ireddy
- Université du Maine, Institut des Molécules et Matériaux du Mans , UMR CNRS 6283, Faculté des Sciences, Avenue O. Messiaen, 72085 Le Mans cedex 9, France
| | - Arnaud Nourry
- Université du Maine, Institut des Molécules et Matériaux du Mans , UMR CNRS 6283, Faculté des Sciences, Avenue O. Messiaen, 72085 Le Mans cedex 9, France
| | - Christine Saluzzo
- Université du Maine, Institut des Molécules et Matériaux du Mans , UMR CNRS 6283, Faculté des Sciences, Avenue O. Messiaen, 72085 Le Mans cedex 9, France
| | - Gilles Dujardin
- Université du Maine, Institut des Molécules et Matériaux du Mans , UMR CNRS 6283, Faculté des Sciences, Avenue O. Messiaen, 72085 Le Mans cedex 9, France
| | - Didier Dubreuil
- Université de Nantes, CEISAM, UMR CNRS 6220, Faculté des Sciences et des Techniques , 2, rue de la Houssinière, 44322 Nantes cedex 3, France
| | - Muriel Pipelier
- Université de Nantes, CEISAM, UMR CNRS 6220, Faculté des Sciences et des Techniques , 2, rue de la Houssinière, 44322 Nantes cedex 3, France
| | - Stéphane Guillarme
- Université du Maine, Institut des Molécules et Matériaux du Mans , UMR CNRS 6283, Faculté des Sciences, Avenue O. Messiaen, 72085 Le Mans cedex 9, France
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4
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Tyagi V, Gupta AK. Efficient and Convenient Method for Workup of Ozonolysis Reaction Using Sodium Hydrosulfite. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.531876] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Vipin Tyagi
- a Department of Chemistry, S.S.V. PG College , Ghaziabad , Uttar Pradesh , India
| | - Ashok Kumar Gupta
- a Department of Chemistry, S.S.V. PG College , Ghaziabad , Uttar Pradesh , India
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5
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Pandey J, Sharma A, Tiwari VK, Dube D, Ramachandran R, Chaturvedi V, Sinha SK, Mishra NN, Shukla PK, Tripathi RP. Solution-Phase Synthesis of a Library of Carbapeptide Analogues Based on Glycosylamino Acid Scaffolds and Their In Silico Screening and Antimicrobial Evaluation. ACTA ACUST UNITED AC 2009; 11:422-7. [DOI: 10.1021/cc800206m] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jyoti Pandey
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology, Drug Target Discovery and Development, and Fermentation Technology, Central Drug Research Institute, Lucknow-226001, India
| | - Anindra Sharma
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology, Drug Target Discovery and Development, and Fermentation Technology, Central Drug Research Institute, Lucknow-226001, India
| | - Vinod K. Tiwari
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology, Drug Target Discovery and Development, and Fermentation Technology, Central Drug Research Institute, Lucknow-226001, India
| | - Divya Dube
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology, Drug Target Discovery and Development, and Fermentation Technology, Central Drug Research Institute, Lucknow-226001, India
| | - Ravishankar Ramachandran
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology, Drug Target Discovery and Development, and Fermentation Technology, Central Drug Research Institute, Lucknow-226001, India
| | - Vinita Chaturvedi
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology, Drug Target Discovery and Development, and Fermentation Technology, Central Drug Research Institute, Lucknow-226001, India
| | - Sudhir K. Sinha
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology, Drug Target Discovery and Development, and Fermentation Technology, Central Drug Research Institute, Lucknow-226001, India
| | - Nripendra N. Mishra
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology, Drug Target Discovery and Development, and Fermentation Technology, Central Drug Research Institute, Lucknow-226001, India
| | - Praveen K. Shukla
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology, Drug Target Discovery and Development, and Fermentation Technology, Central Drug Research Institute, Lucknow-226001, India
| | - Rama P. Tripathi
- Divisions of Medicinal and Process Chemistry, Molecular and Structural Biology, Drug Target Discovery and Development, and Fermentation Technology, Central Drug Research Institute, Lucknow-226001, India
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6
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Elamparuthi E, Kim BG, Yin J, Maurer M, Linker T. Cerium(IV)-mediated C–C bond formations in carbohydrate chemistry. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.08.109] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Kuijpers BHM, Groothuys S, Hawner C, Dam JT, Quaedflieg PJLM, Schoemaker HE, Delft FLV, Rutjes FPJT. Cu-Catalyzed Formation of Triazole-Linked Glycoamino Acids and Application in Chemoenzymatic Peptide Synthesis. Org Process Res Dev 2008. [DOI: 10.1021/op700249f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Brian H. M. Kuijpers
- Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 1, NL-6525 ED Nijmegen, The Netherlands, DSM Pharmaceutical Products - Advanced Synthesis, Catalysis & Development, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Stan Groothuys
- Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 1, NL-6525 ED Nijmegen, The Netherlands, DSM Pharmaceutical Products - Advanced Synthesis, Catalysis & Development, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Christine Hawner
- Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 1, NL-6525 ED Nijmegen, The Netherlands, DSM Pharmaceutical Products - Advanced Synthesis, Catalysis & Development, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Jeroen ten Dam
- Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 1, NL-6525 ED Nijmegen, The Netherlands, DSM Pharmaceutical Products - Advanced Synthesis, Catalysis & Development, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Peter J. L. M. Quaedflieg
- Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 1, NL-6525 ED Nijmegen, The Netherlands, DSM Pharmaceutical Products - Advanced Synthesis, Catalysis & Development, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Hans E. Schoemaker
- Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 1, NL-6525 ED Nijmegen, The Netherlands, DSM Pharmaceutical Products - Advanced Synthesis, Catalysis & Development, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Floris L. van Delft
- Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 1, NL-6525 ED Nijmegen, The Netherlands, DSM Pharmaceutical Products - Advanced Synthesis, Catalysis & Development, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Floris P. J. T. Rutjes
- Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 1, NL-6525 ED Nijmegen, The Netherlands, DSM Pharmaceutical Products - Advanced Synthesis, Catalysis & Development, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
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8
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Norsikian S, Zeitouni J, Rat S, Gérard S, Lubineau A. New and general synthesis of β-C-glycosylformaldehydes from easily available β-C-glycosylpropanones. Carbohydr Res 2007; 342:2716-28. [PMID: 17892865 DOI: 10.1016/j.carres.2007.09.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Revised: 09/02/2007] [Accepted: 09/04/2007] [Indexed: 10/22/2022]
Abstract
A highly effective method for the introduction of a formyl group at the anomeric position of pyranosides was developed via enolisation of beta-C-D-glycopyranosylpropan-2-one using thermodynamic conditions then oxidative cleavage of the more substituted double bond. This sequence affords the desired aldehydes that are conveniently protected as aminals for purification and storage and easily regenerated using Dowex resin H+. In this paper, the syntheses of nine differently protected aldehydes derived from d-glucose, d-galactose, lactose and N-acetyl-d-glucosamine are presented. Our strategy proved to be very efficient in most cases excepted in the D-mannose series.
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Affiliation(s)
- Stéphanie Norsikian
- Laboratoire de Chimie Organique Multifonctionnelle, UMR CNRS-UPS 8614 Glycochimie Moléculaire, Bât. 420, Université Paris Sud, F-91405 Orsay, France.
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9
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Torres-Sanchez MI, Zaccaria C, Buzzi B, Miglio G, Lombardi G, Polito L, Russo G, Lay L. Synthesis and biological evaluation of phosphono analogues of capsular polysaccharide fragments from Neisseria meningitidis A. Chemistry 2007; 13:6623-35. [PMID: 17508372 DOI: 10.1002/chem.200601743] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Neisseria meningitidis type A (MenA) is a Gram-negative encapsulated bacterium that may cause explosive epidemics of meningitis, especially in the sub-Saharan region of Africa. The development and manufacture of an efficient glycoconjugate vaccine against Neisseria meningitidis A is greatly hampered by the poor hydrolytic stability of its capsular polysaccharide, which is made up of (1-->6)-linked 2-acetamido-2-deoxy-alpha-D-mannopyranosyl phosphate repeating units. Since this chemical lability is a product of the inherent instability of the phosphodiester bridges, here we report the synthesis of phosphonoester-linked oligomers of N-acetyl mannosamine as candidates for stabilised analogues of the corresponding phosphate-bridged saccharides. The installation of each interglycosidic phosphonoester linkage was achieved by Mitsunobu coupling of a glycosyl C-phosphonate building block with the 6-OH moiety of a mannosaminyl residue. Each of the synthesised compounds contains an O-linked aminopropyl spacer at its reducing end (alpha- or beta-oriented) to allow for protein conjugation. The relative affinities of the synthetic molecules were investigated by a competitive ELISA assay and showed that a human polyclonal anti-MenA serum can recognise both the phosphonoester-bridged fragments 1-3 and their monomeric subunits, glycosides 20 and 21. Moreover, the biological results suggest that the abilities of these compounds to inhibit the binding of a specific antibody to MenA polysaccharide are dependent on the chain lengths of the molecules, but independent on the orientations of the anomeric linkers.
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Affiliation(s)
- Maria I Torres-Sanchez
- Dipartimento di Chimica Organica e Industriale and Centro Interdisciplinare Studi Bio-molecolari e Applicazioni Industriali, Università degli Studi di Milano via Venezian 21, 20133 Milano, Italy
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10
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Baker KWJ, Gibb A, March AR, Parsons S, Michael Paton R. A Convenient Synthesis of Pyranosyl-1-carbaldoximes. SYNTHETIC COMMUN 2006. [DOI: 10.1081/scc-120018932] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Kenneth W. J. Baker
- a Department of Chemistry , The University of Edinburgh , Edinburgh , Scotland , UK
| | - Andrew Gibb
- a Department of Chemistry , The University of Edinburgh , Edinburgh , Scotland , UK
| | - Andrew R. March
- a Department of Chemistry , The University of Edinburgh , Edinburgh , Scotland , UK
| | - Simon Parsons
- a Department of Chemistry , The University of Edinburgh , Edinburgh , Scotland , UK
| | - R. Michael Paton
- a Department of Chemistry , The University of Edinburgh , Edinburgh , Scotland , UK
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11
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Feldman KS, Iyer MR. Allenyl Azide Cycloaddition Chemistry. Synthesis of Pyrrolidine-Containing Bicycles and Tricycles via the Possible Intermediacy of Azatrimethylenemethane Species. J Am Chem Soc 2005; 127:4590-1. [PMID: 15796521 DOI: 10.1021/ja050757w] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Thermolysis of 5-azidoallenes bearing a C(1) methyl group and either an aryl ring or an alkene on C(1) furnishes tricyclic (from the aryl substrates) or bicyclic (from the alkenyl substrates) pyrrolidine products following formal H-CN addition across an intermediate imine. High levels of diastereoselectivity are observed in all cases studied. This reaction cascade presumably passes through unobserved triazoline and azatrimethylenemethane diyl intermediates en route to product.
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Affiliation(s)
- Ken S Feldman
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
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12
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Svarovsky SA, Barchi JJ. Highly efficient preparation of tumor antigen-containing glycopeptide building blocks from novel pentenyl glycosides. Carbohydr Res 2004; 338:1925-35. [PMID: 14499569 DOI: 10.1016/s0008-6215(03)00323-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
O-Glycosylated amino acids containing the tumor-associated T(Tf)-antigen (beta-D-Gal-(1-->3)-alpha-D-GalNAc) disaccharide unit were conveniently synthesized in seven steps starting from D-galactose via an n-pentenyl glycoside (NPG) building block. Azidonitration of 3,4,6-tri-O-acetyl-D-galactal, followed by nitrate displacement with simultaneous acetate hydrolysis with sodium 4-penten-1-oxide, afforded n-pentenyl 2-deoxy-2-azidogalactoside (3) in near quantitative yield. Subsequent high-yielding transformations resulted in the synthesis of the key glycosyl donor n-pentenyl beta-disaccharide 5 that was employed for the stereospecific preparation of glycosyl amino acids via NIS-promoted glycosylations with serine or threonine acceptors. The surprising utility of the reaction of sodium 4-penten-1-oxide with anomeric nitrates encouraged the detailed exploration of the action of a variety of nucleophiles on anomeric nitrates for the synthesis of useful 2-azido glycosyl donors directly from the 'classic' Lemieux azidonitration product of protected galactals. This expedient synthesis (28% overall yield from 1 to 7a) that makes use of heretofore rarely exploited pentenyl 2'-azidoglycosides, should be a valuable entry in the armamentarium of routes to biologically relevant glycopeptides in both mono- and multivalent forms.
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Affiliation(s)
- Serge A Svarovsky
- Laboratory of Medicinal Chemistry, Center for Cancer Research, National Cancer Institute, Frederick, National Institutes of Health, 376 Boyles Street, Frederick, MD 21702, USA
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13
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Affiliation(s)
- Alessandro Dondoni
- Dipartimento di Chimica, Laboratorio di Chimica Organica,Università di Ferrara, Via L. Borsari 46, 44100 Ferrara, Italy.
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14
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15
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16
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An efficient diastereoselective synthesis of β-1-formyl-2,3,4,6-tetra-O-benzyl-d-glucopyranoside. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)01477-6] [Citation(s) in RCA: 22] [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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17
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Dondoni A, Mariotti G, Marra A. Synthesis of alpha- and beta-glycosyl asparagine ethylene isosteres (C-glycosyl asparagines) via sugar acetylenes and Garner aldehyde coupling. J Org Chem 2002; 67:4475-86. [PMID: 12076144 DOI: 10.1021/jo020054m] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A convergent approach has been developed for the synthesis of C-glycosyl amino acids in which the glycinyl moiety CH(NH2)CO2H is connected to the anomeric center of the sugar residue by a three carbon atom tether. Essentially, these compounds are isosteres of N-glycosyl asparagines in which the amide group has been replaced by an ethylene bridge. Following the coupling of alpha- or beta-D-linked lithium C-glycoside acetylides with N-Boc D-serinal acetonide (Garner aldehyde), the resulting adducts were transformed into the final N-Boc-C-glycosyl-alpha-aminopentanoic acids via reduction of the triple bond, deoxygenation, and oxidative cleavage of the oxazolidine ring. By this protocol, 12 C-glycosyl asparagines, six pairs of alpha- and beta-anomers, have been prepared incorporating the gluco, galacto, manno, and the corresponding 2-acetamido-2-deoxy residues.
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Affiliation(s)
- Alessandro Dondoni
- Dipartimento di Chimica, Laboratorio di Chimica Organica, Università di Ferrara, Via Borsari 46, 44100 Ferrara, Italy.
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18
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Pachamuthu K, Gupta A, Das J, Schmidt R, Vankar Y. An Easy Route to 2-Amino-β-C-Glycosides by Conjugate Addition to 2-Nitroglycals. European J Org Chem 2002. [DOI: 10.1002/1099-0690(200205)2002:9<1479::aid-ejoc1479>3.0.co;2-p] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Kumaran G, Mootoo DR. Synthesis of KDO and analogues from a novel mannose-derived precursor. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)00615-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Praly JP, Chen GR, Gola J, Hetzer G. Stereocontrolled Access to Higher Sugars (Non-1-en-4-ulopyranosyl Derivatives) and Glycomimetics [3-(β-D-Glycopyranosyl)-1-propenes and(3Z)-4,8-Anhydro-nona-1,3-dienitols]. European J Org Chem 2000. [DOI: 10.1002/1099-0690(200008)2000:16<2831::aid-ejoc2831>3.0.co;2-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Dondoni A, Mariotti G, Marra A. General, stereoselective synthesis of ethylene isosteres of α- and β-glycosylasparagines. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(00)00403-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Cipolla L, Lay L, Nicotra F. New and Easy Access to C-Glycosides of Glucosamine and Mannosamine. J Org Chem 1997. [DOI: 10.1021/jo970127f] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Laura Cipolla
- Dipartimento di Chimica Organica e Industriale, Università degli Studi di Milano, CNR Centro di Studio sulle Sostanze Organiche Naturali, Via Venezian 21, 20133 Milano, Italy
| | - Luigi Lay
- Dipartimento di Chimica Organica e Industriale, Università degli Studi di Milano, CNR Centro di Studio sulle Sostanze Organiche Naturali, Via Venezian 21, 20133 Milano, Italy
| | - Francesco Nicotra
- Dipartimento di Chimica Organica e Industriale, Università degli Studi di Milano, CNR Centro di Studio sulle Sostanze Organiche Naturali, Via Venezian 21, 20133 Milano, Italy
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23
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Kozlowski JS, Marzabadi CH, Rath NP, Spilling CD. Chemistry of glucal halohydrins(II): An unusual protecting group effect in the competitive formation of formyl furanosides and methyl glycosides. Carbohydr Res 1997. [DOI: 10.1016/s0008-6215(97)00054-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Rubinstenn G, Esnault J, Mallet JM, Sinaÿ P. Radical mediated synthesis of containing C-disaccharides via a temporary phosphoramidic connection. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0957-4166(97)00141-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Castro-Palomino JC, Schmidt RR. Glycosyl Imidates, 76. Synthesis of Aryl C-Glycosides of Glucosamine. ACTA ACUST UNITED AC 1996. [DOI: 10.1002/jlac.199619961019] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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26
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Roe BA, Boojamra CG, Griggs JL, Bertozzi CR. Synthesis of beta-C-Glycosides of N-Acetylglucosamine via Keck Allylation Directed by Neighboring Phthalimide Groups. J Org Chem 1996; 61:6442-6445. [PMID: 11667491 DOI: 10.1021/jo960819o] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Barbara A. Roe
- Department of Chemistry, University of California, Berkeley, California 94720
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Ayadi E, Czernecki S, Xie J. Stereocontrolled synthesis of 2-azido and 2-N-acetylamino-2-deoxy-β-D-C-glycosides from the corresponding lactones. Chem Commun (Camb) 1996. [DOI: 10.1039/cc9960000347] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Synthesis of derivatives of muramic acid and C-1 homologated α-D-glucose as potential inhibitors of bacterial transglycosylase. Tetrahedron 1995. [DOI: 10.1016/0040-4020(95)00415-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hon YS, Lin SW, Lu L, Chen YJ. The mechanistic study and synthetic applications of the base treatment in the ozonolytic reactions. Tetrahedron 1995. [DOI: 10.1016/0040-4020(95)98699-i] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Cipolla L, Lay L, Nicotra F, Panza L, Russo G. First synthesis of the phosphono analogue of N-acetyl-α-D-mannosamine 1-phosphate. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/c39950001993] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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A stereoselective synthesis of 2-acetamido-2-deoxy-C-glucosides: Glycosyl dianions as key intermediates. Tetrahedron Lett 1994. [DOI: 10.1016/0040-4039(94)88077-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Clive DL, Etkin N. Synthesis of α-amino acids by addition of putative azido radicals to α-methoxy acrylonitriles derived from aldehydes and ketones. Tetrahedron Lett 1994. [DOI: 10.1016/s0040-4039(00)77143-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Leteux C, Veyrières A. Synthesis of α-C-glycopyranosides ofD-galactosamine andD-glucosamine via iodocyclization of corresponding glycals and silver tetrafluoroboranuidepromoted alkynylation at the anomeric centre. ACTA ACUST UNITED AC 1994. [DOI: 10.1039/p19940002647] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hon YS, Lin SW, Chen YJ. A Convenient and Efficient Workup of Ozonolysis Reactions Using Triethylamine. SYNTHETIC COMMUN 1993. [DOI: 10.1080/00397919308011249] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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