1
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Goyard D, Ortiz AMS, Boturyn D, Renaudet O. Multivalent glycocyclopeptides: conjugation methods and biological applications. Chem Soc Rev 2022; 51:8756-8783. [PMID: 36193815 PMCID: PMC9575389 DOI: 10.1039/d2cs00640e] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Indexed: 11/21/2022]
Abstract
Click chemistry was extensively used to decorate synthetic multivalent scaffolds with glycans to mimic the cell surface glycocalyx and to develop applications in glycosciences. Conjugation methods such as oxime ligation, copper(I)-catalyzed alkyne-azide cycloaddition, thiol-ene coupling, squaramide coupling or Lansbury aspartylation proved particularly suitable to achieve this purpose. This review summarizes the synthetic strategies that can be used either in a stepwise manner or in an orthogonal one-pot approach, to conjugate multiple copies of identical or different glycans to cyclopeptide scaffolds (namely multivalent glycocyclopeptides) having different size, valency, geometry and molecular composition. The second part of this review will describe the potential of these structures to interact with various carbohydrate binding proteins or to stimulate immunity against tumor cells.
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Affiliation(s)
- David Goyard
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250, F-38000 Grenoble, France.
| | | | - Didier Boturyn
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250, F-38000 Grenoble, France.
| | - Olivier Renaudet
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250, F-38000 Grenoble, France.
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2
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Synthesis and biological evaluation of neoglycosphingolipids. Eur J Med Chem 2017; 134:43-51. [PMID: 28399449 DOI: 10.1016/j.ejmech.2017.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 04/01/2017] [Accepted: 04/03/2017] [Indexed: 11/20/2022]
Abstract
Various neoglycosphingolipids were efficiently synthesized in a one-step reaction by the coupling of free sugars with an N-alkylaminooxy-functionalized ceramide analogue. The bioactivity studies demonstrated that most of these compounds could upregulate the expression of matrix metalloproteinase-9 (MMP-9, extracellular matrix proteins associated with tumor migration) in murine melanoma B16 cells in a similar manner to the natural ganglioside monosialodihexosylganglioside (GM3), which highlights the potential use of these neoglycosphingolipids as inhibitors of tumor migration.
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3
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Abstract
The synthesis and chemical and physicochemical properties as well as biological and medical applications of various hydroxylamine-functionalized carbohydrate derivatives are summarized.
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Affiliation(s)
- N. Chen
- PPSM
- ENS Cachan
- CNRS
- Alembert Institute
- Université Paris-Saclay
| | - J. Xie
- PPSM
- ENS Cachan
- CNRS
- Alembert Institute
- Université Paris-Saclay
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4
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Hara T, Purwati EM, Tainosyo A, Kawakami T, Hojo H, Aimoto S. Site-specific labeling of synthetic peptide using the chemoselective reaction between N-methoxyamino acid and isothiocyanate. J Pept Sci 2015; 21:765-9. [PMID: 26358741 DOI: 10.1002/psc.2803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 07/01/2015] [Accepted: 07/01/2015] [Indexed: 11/11/2022]
Abstract
Site-specific labeling of synthetic peptides carrying N-methoxyglycine (MeOGly) by isothiocyanate is demonstrated. A nonapeptide having MeOGly at its N-terminus was synthesized by the solid-phase method and reacted with phenylisothiocyanate under various conditions. In acidic solution, the reaction specifically gave a peptide having phenylthiourea structure at its N-terminus, leaving side chain amino group intact. The synthetic human β-defensin-2 carrying MeOGly at its N-terminus or the side chain amino group of Lys(10) reacted with phenylisothiocyanate or fluorescein isothiocyanate also at the N-methoxyamino group under the same conditions, demonstrating that this method is generally useful for the site-specific labeling of linear synthetic peptides as well as disulfide-containing peptides.
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Affiliation(s)
- Toshiaki Hara
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Euis Maras Purwati
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Akira Tainosyo
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Toru Kawakami
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hironobu Hojo
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Saburo Aimoto
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
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5
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Munneke S, Prevost JRC, Painter GF, Stocker BL, Timmer MSM. The Rapid and Facile Synthesis of Oxyamine Linkers for the Preparation of Hydrolytically Stable Glycoconjugates. Org Lett 2015; 17:624-7. [DOI: 10.1021/ol503634j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Stefan Munneke
- School
of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
| | - Julien R. C. Prevost
- School
of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
| | - Gavin F. Painter
- Ferrier
Research Institute, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
| | - Bridget L. Stocker
- School
of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
| | - Mattie S. M. Timmer
- School
of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
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6
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Nandurkar NS, Zhang J, Ye Q, Ponomareva LV, She QB, Thorson JS. The identification of perillyl alcohol glycosides with improved antiproliferative activity. J Med Chem 2014; 57:7478-84. [PMID: 25121720 PMCID: PMC4161159 DOI: 10.1021/jm500870u] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
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A facile
route to perillyl alcohol (POH) differential glycosylation
and the corresponding synthesis of a set of 34 POH glycosides is reported.
Subsequent in vitro studies revealed a sugar dependent antiproliferative
activity and the inhibition of S6 ribosomal protein phosphorylation
as a putative mechanism of representative POH glycosides. The most
active glycoside from this cumulative study (4′-azido-d-glucoside, PG9) represents one of the most cytotoxic
POH analogues reported to date.
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Affiliation(s)
- Nitin S Nandurkar
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky , 789 South Limestone Street, Lexington, Kentucky 40536-0596, United States
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7
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Goff RD, Thorson JS. Neoglycosylation and neoglycorandomization: Enabling tools for the discovery of novel glycosylated bioactive probes and early stage leads. MEDCHEMCOMM 2014; 5:1036-1047. [PMID: 25071927 PMCID: PMC4111257 DOI: 10.1039/c4md00117f] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
This review focuses upon the development, scope, and utility of the highly versatile chemoselective alkoxyamine-based 'neoglycosylation' reaction first described by Peri and Dumy. The fundamentals of neoglycosylation and the subsequent development of a 'neoglycorandomization' platform to afford differentially-glycosylated libraries of plant-based natural products, microbial-based natural products, and small molecule-based drugs for drug discovery applications are discussed.
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Affiliation(s)
- Randal D. Goff
- Western Wyoming Community College, 2500 College Dr. Rock Springs, WY 82902-0428, USA
| | - Jon. S. Thorson
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY 40536, USA
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8
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Loskot SA, Zhang J, Langenhan JM. Nucleophilic catalysis of MeON-neoglycoside formation by aniline derivatives. J Org Chem 2013; 78:12189-93. [PMID: 24180591 DOI: 10.1021/jo401688p] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Neoglycosylations are increasingly being employed in the synthesis of natural products, drug candidates, glycopeptide mimics, oligosaccharide analogues, and other applications, but the efficiency of these reactions is usually limited by slow reaction times. Here, we show that aniline derivatives such as 2-amino-5-methoxybenzoic acid enhance the rate of acid-catalyzed neoglycosylation for a range of sugar substrates up to a factor of 32 relative to the uncatalyzed reaction.
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Affiliation(s)
- Steven A Loskot
- Department of Chemistry, Seattle University , Seattle, Washington 98122, United States
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9
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Zhang J, Ponomareva LV, Marchillo K, Zhou M, Andes DR, Thorson JS. Synthesis and antibacterial activity of doxycycline neoglycosides. JOURNAL OF NATURAL PRODUCTS 2013; 76:1627-36. [PMID: 23987662 PMCID: PMC3814126 DOI: 10.1021/np4003096] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A set of 37 doxycycline neoglycosides were prepared, mediated via a C-9 alkoxyamino-glycyl-based spacer reminiscent of that of tigecycline. Subsequent in vitro antibacterial assays against representative drug-resistant Gram negative and Gram positive strains revealed a sugar-dependent activity profile and one doxycycline neoglycoside, the 2'-amino-α-D-glucoside conjugate, to rival that of the parent pharmacophore. In contrast, the representative tetracycline-susceptible strain E. coli 25922 was found to be relatively responsive to a range of doxycycline neoglycosides. This study also extends the use of aminosugars in the context of neoglycosylation via a simple two-step strategy anticipated to be broadly applicable for neoglycorandomization.
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Affiliation(s)
- Jianjun Zhang
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, Kentucky 40536-0596, United States
| | - Larissa V. Ponomareva
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, Kentucky 40536-0596, United States
| | - Karen Marchillo
- Department of Medicine and Medical Microbiology and Immunology, University of Wisconsin-Madison, 1685 Highland Avenue, Madison, Wisconsin, 53705-2281, United States
| | - Maoquan Zhou
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, Wisconsin 53705-2222, United States
| | - David R. Andes
- Department of Medicine and Medical Microbiology and Immunology, University of Wisconsin-Madison, 1685 Highland Avenue, Madison, Wisconsin, 53705-2281, United States
| | - Jon S. Thorson
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, Kentucky 40536-0596, United States
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10
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Stability of aminooxy glycosides to glycosidase catalysed hydrolysis. Carbohydr Res 2013; 377:1-3. [PMID: 23764956 DOI: 10.1016/j.carres.2013.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 05/09/2013] [Accepted: 05/10/2013] [Indexed: 11/20/2022]
Abstract
The stability of the amino(methoxy) beta-glycosidic bond to glycosidase catalysed hydrolysis is reported. Beta-O-benzyl glucose and beta-O-benzyl galactose are substrates hydrolysed by beta-glucosidase and beta-galactosidase from almonds and Escherichia coli, respectively. However their beta-N-benzyl-(O-methoxy)-glucoside and beta-N-benzyl-(O-methoxy)-galactoside derivatives are competitive inhibitors.
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11
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Langenhan JM, Mullarky E, Rogalsky DK, Rohlfing JR, Tjaden AE, Werner HM, Rozal LM, Loskot SA. Amphimedosides A–C: Synthesis, Chemoselective Glycosylation, And Biological Evaluation. J Org Chem 2013; 78:1670-6. [DOI: 10.1021/jo302640y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Joseph M. Langenhan
- Department of Chemistry, Seattle University, Seattle, Washington 98122, United States
| | - Edouard Mullarky
- Department of Chemistry, Seattle University, Seattle, Washington 98122, United States
| | - Derek K. Rogalsky
- Department of Chemistry, Seattle University, Seattle, Washington 98122, United States
| | - James R. Rohlfing
- Department of Chemistry, Seattle University, Seattle, Washington 98122, United States
| | - Anja E. Tjaden
- Department of Chemistry, Seattle University, Seattle, Washington 98122, United States
| | - Halina M. Werner
- Department of Chemistry, Seattle University, Seattle, Washington 98122, United States
| | - Leonardo M. Rozal
- Department of Chemistry, Seattle University, Seattle, Washington 98122, United States
| | - Steven A. Loskot
- Department of Chemistry, Seattle University, Seattle, Washington 98122, United States
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12
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Teze D, Dion M, Daligault F, Tran V, André-Miral C, Tellier C. Alkoxyamino glycoside acceptors for the regioselective synthesis of oligosaccharides using glycosynthases and transglycosidases. Bioorg Med Chem Lett 2013; 23:448-51. [DOI: 10.1016/j.bmcl.2012.11.065] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 11/13/2012] [Accepted: 11/18/2012] [Indexed: 12/01/2022]
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13
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Synthesis and biological evaluation of RON-neoglycosides as tumor cytotoxins. Carbohydr Res 2011; 346:2663-76. [DOI: 10.1016/j.carres.2011.09.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 09/13/2011] [Accepted: 09/19/2011] [Indexed: 11/21/2022]
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14
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Goff RD, Thorson JS. Assessment of chemoselective neoglycosylation methods using chlorambucil as a model. J Med Chem 2010; 53:8129-39. [PMID: 20973561 DOI: 10.1021/jm101024j] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
To systematically assess the impact of glycosylation and the corresponding chemoselective linker upon the anticancer activity/selectivity of the drug chlorambucil, herein we report the synthesis and anticancer activities of a 63-member library of chlorambucil-based neoglycosides. A comparison of N-alkoxyamine-, N-acylhydrazine-, and N-hydroxyamine-based chemoselective glycosylation of chlorambucil revealed sugar- and linker-dependent partitioning among open- and closed-ring neoglycosides and corresponding sugar-dependent variant biological activity. Cumulatively, this study represents the first neoglycorandomization of a synthetic drug and expands our understanding of the impact of sugar structure upon product distribution/equilibria in the context of N-alkoxyamino-, N-hydroxyamino-, and N-acylhydrazine-based chemoselective glycosylation. This study also revealed several analogues with increased in vitro anticancer activity, most notably D-threoside 60 (NSC 748747), which displayed much broader tumor specificity and notably increased potency over the parent drug.
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Affiliation(s)
- Randal D Goff
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, Wisconsin 53705, USA
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15
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Carrasco MR, Alvarado CI, Dashner ST, Wong AJ, Wong MA. Synthesis of Aminooxy and N-Alkylaminooxy Amines for Use in Bioconjugation. J Org Chem 2010; 75:5757-9. [DOI: 10.1021/jo101066c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Michael R. Carrasco
- Department of Chemistry and Biochemistry, Santa Clara University, 500 El Camino Real, Santa Clara, California 95053-0270
| | - Carolina I. Alvarado
- Department of Chemistry and Biochemistry, Santa Clara University, 500 El Camino Real, Santa Clara, California 95053-0270
| | - Scott T. Dashner
- Department of Chemistry and Biochemistry, Santa Clara University, 500 El Camino Real, Santa Clara, California 95053-0270
| | - Amanda J. Wong
- Department of Chemistry and Biochemistry, Santa Clara University, 500 El Camino Real, Santa Clara, California 95053-0270
| | - Michael A. Wong
- Department of Chemistry and Biochemistry, Santa Clara University, 500 El Camino Real, Santa Clara, California 95053-0270
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16
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Zhou X, Turchi C, Wang D. Carbohydrate cluster microarrays fabricated on three-dimensional dendrimeric platforms for functional glycomics exploration. J Proteome Res 2010; 8:5031-40. [PMID: 19791771 DOI: 10.1021/pr900452s] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We reported here a novel, ready-to-use bioarray platform and methodology for construction of sensitive carbohydrate cluster microarrays. This technology utilizes a three-dimensional (3-D) poly(amidoamine) starburst dendrimer monolayer assembled on glass surface, which is functionalized with terminal aminooxy and hydrazide groups for site-specific coupling of carbohydrates. A wide range of saccharides, including monosaccharides, oligosaccharides and polysaccharides of diverse structures, are applicable for the 3-D bioarray platform without prior chemical derivatization. The process of carbohydrate coupling is effectively accelerated by microwave radiation energy. The carbohydrate concentration required for microarray fabrication is substantially reduced using this technology. Importantly, this bioarray platform presents sugar chains in defined orientation and cluster configurations. It is, thus, uniquely useful for exploration of the structural and conformational diversities of glyco-epitope and their functional properties.
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Affiliation(s)
- Xichun Zhou
- ADA Technologies, Inc., 8100 Shaffer Parkway, Littleton, Colorado 80127, USA.
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17
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Seo J, Michaelian N, Owens SC, Dashner ST, Wong AJ, Barron AE, Carrasco MR. Chemoselective and microwave-assisted synthesis of glycopeptoids. Org Lett 2010; 11:5210-3. [PMID: 19905028 DOI: 10.1021/ol9021468] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The chemoselective glycosylation of N-alkylaminooxy side chains with unprotected reducing sugars has proven useful for the synthesis of glycopeptides. Herein, we extend the N-alkylaminooxy strategy to the synthesis of glycopeptoids. A N-methylaminooxy submonomer was efficiently synthesized and incorporated into peptoids. Glycosylation of the peptoids proceeded chemoselectively and site-specifically at the N-methylaminooxy moieties. Employing microwave irradiation significantly increased the degree of glycosylation and shortened the reaction times.
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Affiliation(s)
- Jiwon Seo
- Department of Bioengineering, Stanford University, 318 Campus Drive, Stanford, California 94305-5440, USA
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18
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Zhang L, Lee HK, Pruess TH, White HS, Bulaj G. Synthesis and applications of polyamine amino acid residues: improving the bioactivity of an analgesic neuropeptide, neurotensin. J Med Chem 2009; 52:1514-7. [PMID: 19236044 DOI: 10.1021/jm801481y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Conjugated polyamines are potential carriers for biotherapeutics targeting the central nervous system. We describe an efficient synthesis of a polyamine-based amino acid, lysine-trimethylene(diNosyl)-spermine(triBoc) with Dde or Fmoc orthogonal protecting groups. This nonnatural amino acid was incorporated into a neurotensin analogue using standard Fmoc-based protocols. The analogue maintained high affinity and agonist potency for neurotensin receptors and exhibited dramatically improved analgesia in mice. Our work provides a basis for use of polyamine amino acids in polypeptides.
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Affiliation(s)
- Liuyin Zhang
- Department of Medicinal Chemistry, College of Pharmacy, University of Utah, Salt Lake City, Utah 84108, USA
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19
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Stability studies of hydrazide and hydroxylamine-based glycoconjugates in aqueous solution. Carbohydr Res 2009; 344:278-84. [DOI: 10.1016/j.carres.2008.11.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Revised: 11/04/2008] [Accepted: 11/10/2008] [Indexed: 11/18/2022]
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20
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Abstract
Using neoglycosylation, the impact of differential glycosylation upon the divergent anticancer and anti-HIV properties of the triterpenoid betulinic acid (BA) was examined. Each member from a library of 37 differentially glycosylated BA variants was tested for anticancer and anti-HIV activities. Enhanced analogs for both desired activities were discovered with the corresponding antitumor or antiviral enhancements diverging, on the basis of the appended sugar, into two distinct compound subsets.
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Affiliation(s)
- Randal D. Goff
- University of Wisconsin National Cooperative Drug Discovery Group, Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, 777, Highland Ave. Madison, WI 53705
| | - Jon S. Thorson
- University of Wisconsin National Cooperative Drug Discovery Group, Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, 777, Highland Ave. Madison, WI 53705
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21
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Langenhan JM, Engle JM, Slevin LK, Fay LR, Lucker RW, Smith KR, Endo MM. Modifying the glycosidic linkage in digitoxin analogs provides selective cytotoxins. Bioorg Med Chem Lett 2008; 18:670-3. [PMID: 18240383 DOI: 10.1016/j.bmcl.2007.11.058] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A chemoselective reaction between oxyamines and unprotected, unactivated reducing sugars was used to construct for the first time a panel of linkage-diversified neoglycosides. This panel of digitoxin analogs included potent and selective tumor cytotoxins; cytotoxicity was dependent on the structure of the glycosidic linkage. These results validate linkage diversification through neoglycosylation as a unique and simple strategy to powerfully complement existing methods for the optimization of glycoconjugates.
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Affiliation(s)
- Joseph M Langenhan
- Department of Chemistry, Seattle University, 901 12th Avenue, Seattle, WA 98122, USA.
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22
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23
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Gaertner H, Offord R, Botti P, Kuenzi G, Hartley O. Semisynthetic Analogues of PSC-RANTES, a Potent Anti-HIV Protein. Bioconjug Chem 2008; 19:480-9. [DOI: 10.1021/bc7003044] [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)
- Hubert Gaertner
- Department of Structural Biology and Bioinformatics, Centre Médical Universitaire, 1 rue Michel Servet, 1211 Geneva 4, Switzerland
| | - Robin Offord
- Department of Structural Biology and Bioinformatics, Centre Médical Universitaire, 1 rue Michel Servet, 1211 Geneva 4, Switzerland
| | - Paolo Botti
- Department of Structural Biology and Bioinformatics, Centre Médical Universitaire, 1 rue Michel Servet, 1211 Geneva 4, Switzerland
| | - Gabriel Kuenzi
- Department of Structural Biology and Bioinformatics, Centre Médical Universitaire, 1 rue Michel Servet, 1211 Geneva 4, Switzerland
| | - Oliver Hartley
- Department of Structural Biology and Bioinformatics, Centre Médical Universitaire, 1 rue Michel Servet, 1211 Geneva 4, Switzerland
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24
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Monzo A, Guttman A. Immobilization Techniques for Mono- and Oligosaccharide Microarrays. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/qsar.200640082] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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25
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Lee MR, Shin I. Facile preparation of carbohydrate microarrays by site-specific, covalent immobilization of unmodified carbohydrates on hydrazide-coated glass slides. Org Lett 2006; 7:4269-72. [PMID: 16146404 DOI: 10.1021/ol051753z] [Citation(s) in RCA: 137] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
[reaction: see text] A new, simple and efficient immobilization method to attach mono-, di-, oligo-, and polysaccharides to hydrazide-coated glass slides was developed. Protein and cell-binding experiments show that the carbohydrate microarrays prepared by this method are applicable for the rapid analysis of protein-carbohydrate interactions and fast detection of pathogens.
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Affiliation(s)
- Myung-Ryul Lee
- Department of Chemistry, Yonsei University, Seoul 120-749, Korea
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26
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Carrasco MR, Brown RT, Doan VH, Kandel SM, Lee FC. 2-(N-Fmoc)-3-(N-Boc-N-methoxy)-diaminopropanoic acid, an amino acid for the synthesis of mimics of O-linked glycopeptides. Biopolymers 2006; 84:414-20. [PMID: 16508952 DOI: 10.1002/bip.20496] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Amino acids with N-alkylaminooxy side chains have proven effective for the rapid synthesis of neoglycopeptides. Chemoselective reaction of reducing sugars with peptides containing these amino acids provides glycoconjugates that are structurally similar to their natural counterparts. 2-(N-Fmoc)-3-(N-Boc-N-methoxy)-diaminopropanoic acid (Fmoc: 9-fluorenylmethoxycarbonyl; Boc: t-butyloxycarbonyl) was synthesized from Boc-Ser-OH in >40% overall yield and incorporated into peptides by standard Fmoc chemistry based solid phase peptide synthesis. The resulting peptides are efficiently glycosylated and serve as mimics of O-linked glycopeptides. The synthesis of this derivative greatly expands the availability of the N-alkylaminooxy strategy for neoglycopeptides.
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Affiliation(s)
- Michael R Carrasco
- Department of Chemistry, Santa Clara University, Santa Clara, CA 95053-0270, USA.
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Lees A, Sen G, LopezAcosta A. Versatile and efficient synthesis of protein–polysaccharide conjugate vaccines using aminooxy reagents and oxime chemistry. Vaccine 2006; 24:716-29. [PMID: 16233938 DOI: 10.1016/j.vaccine.2005.08.096] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2005] [Accepted: 08/25/2005] [Indexed: 11/16/2022]
Abstract
Applications of oxime chemistry are described for the efficient bioconjugation of proteins and polysaccharides for the preparation of conjugate vaccines. A number of approaches are described in this manuscript to functionalize proteins and polysaccharides with aminooxy (AO) groups and aldehydes which could then be covalently linked to each other via oxime formation, without the need for reduction. By using limiting numbers of active groups on each component, the extent of inter- and intramolecular crosslinking could be controlled. The approaches described are compatible and complementary to a number of chemistries currently used in conjugate vaccine synthesis. Oxime chemistry can be used to both simplify the synthesis of and increase yields of conjugate vaccines. Mice immunized with pneumococcal type 14 conjugates that were made using oxime chemistry mounted significant anti-polysaccharide immune responses. The primary immune response could be boosted, indicating that the polysaccharide conjugate had characteristics of a T cell dependent antigen.
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Affiliation(s)
- Andrew Lees
- Biosynexus Incorporated, 9119 Gaither Rd., Gaithersburg, MD 20877, USA.
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Narine AA, Wilson PD. Synthesis and evaluation of 7-hydroxyindan-1-one-derived chiral auxiliaries. CAN J CHEM 2005. [DOI: 10.1139/v05-052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A series of novel chiral acetals were prepared from 7-hydroxyindan-1-one and a variety of substituted chiral nonracemic C2-symmetric 1,2-ethanediols (R = Me, Ph, CH2OMe, CH2OBn, CH2O(1-Np), and i-Pr). These acetals were evaluated as chiral auxiliaries for use in asymmetric synthesis. A high degree of stereochemical induction was observed in the diethylaluminum chloride-promoted DielsAlder reaction of an acrylate derivative (R = i-Pr) with cyclopentadiene (91:9 dr). This demonstrated that these acetals could serve as effective chiral directors in asymmetric substrate-directed reactions.Key words: 7-hydroxyindan-1-one, chiral nonracemic C2-symmetric 1,2-diols, acetals, chiral auxiliaries, DielsAlder reaction.
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Filira F, Biondi B, Biondi L, Giannini E, Gobbo M, Negri L, Rocchi R. Opioid peptides: synthesis and biological properties of [(Nγ-glucosyl,Nγ-methoxy)-α,γ-diamino-(S)-butanoyl]4-deltorphin-1-neoglycopeptide and related analogues. Org Biomol Chem 2003; 1:3059-63. [PMID: 14518129 DOI: 10.1039/b306142f] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The [D-Ala2]deltorphin 1 sequence in which the aspartic acid residue is replaced by the N gamma-OCH3-alpha, gamma-diamino (S) butanoyl residue was synthesized using the Fmoc-chemistry-based solid phase procedure. The resulting deltorphin analogue was chemoselectively glucosylated by reaction with unprotected D-glucose (Glc). The Asn4-, (2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-beta-D-galactopyranosyl)-Asn4- and the (2-acetamido-2-deoxy-D-galactopyranosyl)-Asn4-deltorphin I were also prepared for comparison. The affinity of the new compounds for the delta-opioid receptor was expressed by the inhibition constant (Ki) of the binding of the delta-receptor selective ligand [3H]naltrindole (NTI) to rat brain membrane preparations. The in vitro biological activity of the synthetic peptides was compared with that of the mu-opioid receptor agonist dermorphin in guinea pig ileum (GPI) preparations and with that of the delta-opioid receptor agonist deltorphin I in mouse vas deferens (MVD) preparations. The substitution of Asp4 with Asn failed to affect drastically the Ki and IC50 values for delta-sites, suggesting that an electrostatic interaction does not play an essential role in the binding to delta-opioid sites. The steric hindrance of the side chain of the residue in position 4 affects binding to delta-sites. The increase of the Ki value is smaller when the sugar-peptide linkage involves the gamma-nitrogen of the Dab residue in comparison with the Asn amide side chain.
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Affiliation(s)
- Fernando Filira
- Department of Organic Chemistry, University of Padova, Institute of Biomolecular Chemistry, C. N. R., Section of Padova, via Marzolo, 1-35131, Padova, Italy
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