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Hassan AA, Oscarson S. A General Method for the Divergent Synthesis of C‐9 Functionalised Sialic Acid Derivatives. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Abdullah A. Hassan
- Centre for Synthesis and Chemical Biology University College Dublin Dublin 4 Ireland
| | - Stefan Oscarson
- Centre for Synthesis and Chemical Biology University College Dublin Dublin 4 Ireland
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2
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Hawsawi M, Wickramasinghe A, Crich D. Use of Phenols as Nucleophiles in the Zbiral Oxidative Deamination of N-Acetyl Neuraminic Acid: Isolation and Characterization of Tricyclic 3-Keto-2-deoxy-nonulosonic Acid (KDN) Derivatives via an Intermediate Vinyl Diazonium Ion. J Org Chem 2019; 84:14688-14700. [PMID: 31608634 PMCID: PMC6858517 DOI: 10.1021/acs.joc.9b02279] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
It is well established that the N-nitrosoamide derived from peracetylated derivatives of N-acetyl neuraminic acid on treatment with a mixture of sodium isopropoxide and trifluoroethanol, followed by the addition of acetic acid, gives an oxidative deamination product, in which the AcN(NO)-C5 bond is replaced with a AcO-C5 bond with the retention of configuration, affording a practical synthesis of 2-keto-3-deoxy-d-glycero-d-galactononulosonic acid (KDN) derivatives. Application of other strong acids, including hydrogen fluoride, thioacetic acid, trifluoromethanesulfonic acid, and hydrogen azide, functions similarly to afford KDN derivatives functionalized at the 5-position. We describe our attempts to extend the range of useful nucleophiles employed in this oxidative deamination process to include phenols and thiophenols, resulting in the discovery of a new branch of the general reaction and the formation of a series of products resulting from substitution of the 5-acetamido group and of the 4-acetoxy group from neuraminic acid. A mechanistic rationale for the formation of these products is advanced according to which, in the absence of acids of pKa ≤ 8, the intermediate diazonium ion resulting from the elimination of acetic acid and nitrogen from the nitrosoacetamide undergoes elimination of acetic acid from the 4-position to afford a highly electrophilic alkenediazonium ion. Reversible conjugate addition of the nucleophile to the 4-position then initiates the reaction cascade leading to the ultimate products.
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Affiliation(s)
- Mohammed Hawsawi
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
| | - Anura Wickramasinghe
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
- Department of Pharmaceutical and Biomedical Sciences , University of Georgia , 250 West Green Street , Athens , Georgia 30602 , United States
| | - David Crich
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
- Department of Pharmaceutical and Biomedical Sciences , University of Georgia , 250 West Green Street , Athens , Georgia 30602 , United States
- Department of Chemistry , University of Georgia , 140 Cedar Street , Athens , Georgia 30602 , United States
- Complex Carbohydrate Research Center , University of Georgia , 315 Riverbend Road , Athens , Georgia 30602 , United States
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3
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Suzuki K, Daikoku S, Son SH, Ito Y, Kanie O. Synthetic study of 3-fluorinated sialic acid derivatives. Carbohydr Res 2015; 406:1-9. [PMID: 25658060 DOI: 10.1016/j.carres.2014.12.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 12/22/2014] [Accepted: 12/23/2014] [Indexed: 11/15/2022]
Abstract
Sialic acid derivatives, analogs, and their conjugates are expected to be pharmaceutical candidates such as anti-influenza drugs and also useful probes for investigating the biological role of glycoconjugates. Derivatives of 3-fluorinated sialic acid (3-F-Sia) have been found to be excellent probes in investigating functions and mechanisms of a series of proteins. Here, we describe the syntheses of 3-F-Sia derivatives, which are useful in making biologically important conjugate probes. A practical method for the construction of 3-fluorinated sialosides based on the stereoselective formation of the corresponding anomeric O-trimethylsilyl ether and their nucleophilic attack by an alkyl halide, an allyl halide in particular, was developed. In addition, details of the synthesis of cytidine monophosphate (CMP)-3-F-Sia bearing a fluorescent tag, which has been proven to show dual functions as a substrate of CMP-sialic acid transporter (CST) and an inhibitor of sialyltransferase (STase), are described.
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Affiliation(s)
- Katsuhiko Suzuki
- ERATO, Japan Science and Technology Agency (JST), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Shusaku Daikoku
- ERATO, Japan Science and Technology Agency (JST), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Sang-Hyun Son
- ERATO, Japan Science and Technology Agency (JST), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yukishige Ito
- ERATO, Japan Science and Technology Agency (JST), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Synthetic Cellular Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Osamu Kanie
- ERATO, Japan Science and Technology Agency (JST), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Institute of Glycoscience, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan.
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4
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Paragas EM, Monreal IA, Vasil CM, Saludes JP. One-pot SSA-catalyzed β-elimination: an efficient and inexpensive protocol for easy access to the glycal of sialic acid. Carbohydr Res 2014; 402:77-80. [PMID: 25497336 DOI: 10.1016/j.carres.2014.09.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/08/2014] [Accepted: 09/09/2014] [Indexed: 10/24/2022]
Abstract
Neu5Ac2en1Me per-OAc, the fully protected glycal of sialic acid, is a key intermediate in the discovery of therapeutics and diagnostics, including anti-influenza drugs and proteolysis resistant peptidomimetic foldamers. The synthesis of this sialic acid derivative, however, still relies on standard sugar chemistry that utilizes multi-step methodologies. Herein we report a facile and highly efficient microwave-assisted preparation of Neu5Ac1Me using silica sulfuric acid (SSA) as solid-supported acid catalyst that is one- to two-orders of magnitude faster than standard procedures. We also describe the microwave-assisted and SSA-catalyzed one-pot, rapid, solvent free reaction that combines both peracetylation and β-elimination reactions in one step to generate the glycal from Neu5Ac1Me. We coined the term One-pot SSA-catalyzed Technology for β-Elimination Protocol (OneSTEP) to describe this least laborious, most efficient, and practical preparation to date of Neu5Ac2en1Me per-OAc in terms of yield, time, reagent cost, and waste generation.
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Affiliation(s)
- Erickson M Paragas
- Department of Chemistry, Washington State University, Pullman, WA 99164, USA
| | - I Abrrey Monreal
- Department of Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Chris M Vasil
- Department of Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Jonel P Saludes
- Department of Chemistry, Washington State University, Pullman, WA 99164, USA.
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5
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Brittan JL, Buckeridge TJ, Finn A, Kadioglu A, Jenkinson HF. Pneumococcal neuraminidase A: an essential upper airway colonization factor for Streptococcus pneumoniae. Mol Oral Microbiol 2012; 27:270-83. [PMID: 22759312 DOI: 10.1111/j.2041-1014.2012.00658.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Streptococcus pneumoniae colonizes the upper respiratory tract from where the organisms may disseminate systemically to cause life threatening infections. The mechanisms by which pneumococci colonize epithelia are not understood, but neuraminidase A (NanA) has a major role in promoting growth and survival in the upper respiratory tract. In this article we show that mutants of S. pneumoniae D39 deficient in NanA or neuraminidase B (NanB) are abrogated in adherence to three epithelial cell lines, and to primary nasopharyngeal cells. Adherence levels were partly restored by nanA complementation in trans. Enzymic activity of NanA was shown to be necessary for pneumococcal adherence to epithelial cells, and adherence of the nanA mutant was restored to wild-type level by pre-incubation of epithelial cells with Lactococcus lactis cells expressing NanA. Pneumococcal nanA or nanB mutants were deficient in biofilm formation, while expression of NanA on L. lactis or Streptococcus gordonii promoted biofilm formation by these heterologous host organisms. The results suggest that NanA is an enzymic factor mediating adherence to epithelial cells by decrypting receptors for adhesion, and functions at least in part as an adhesin in biofilm formation. Neuraminidase A thus appears to play multiple temporal roles in pneumococcal infection, from adherence to host tissues, colonization, and community development, to systemic spread and crossing of the blood-brain barrier.
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Affiliation(s)
- J L Brittan
- School of Oral and Dental Sciences, University of Bristol, Bristol, UK
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6
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Rota P, Allevi P, Agnolin IS, Mattina R, Papini N, Anastasia M. A simple synthesis of N-perfluoroacylated and N-acylated glycals of neuraminic acid with a cyclic aminic substituent at the 4α position as possible inhibitors of sialidases. Org Biomol Chem 2012; 10:2885-94. [PMID: 22395901 DOI: 10.1039/c2ob07015d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple protocol for the synthesis of N-perfluoroacylated and N-acylated glycals of neuraminic acid, with a secondary cyclic amine (morpholine or piperidine) at the 4α position, has been set-up, starting from peracetylated N-acetylneuraminic acid methyl ester that undergoes, sequentially to its direct N-transacylation followed by a C-4 amination, a β-elimination, and a selective hydrolysis of the ester functions, without affecting the sensitive perfluorinated amide.
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Affiliation(s)
- Paola Rota
- Department of Chemistry, Biochemistry and Biotechnology for the Medicine, Via Saldini 50, Milano, Italy.
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7
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8
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9
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Jordan AM, Osborn HMI, Stafford PM, Tzortzis G, Rastall RA. Synthesis of Unsaturated Aminopyranosides as Possible Transition State Mimics for Glycosidases. J Carbohydr Chem 2007. [DOI: 10.1081/car-120026469] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Allan M. Jordan
- a School of Chemistry , University of Reading , Whiteknights, Reading , RG6 6AD , UK
| | - Helen M. I. Osborn
- a School of Chemistry , University of Reading , Whiteknights, Reading , RG6 6AD , UK
| | - Petra M. Stafford
- a School of Chemistry , University of Reading , Whiteknights, Reading , RG6 6AD , UK
| | - George Tzortzis
- b School of Food Biosciences , University of Reading , Whiteknights, Reading , RG6 6AP , UK
| | - Robert A. Rastall
- b School of Food Biosciences , University of Reading , Whiteknights, Reading , RG6 6AP , UK
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10
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Li W, Li S. X-ray crystal structure analysis of 4,7,8,9-tetra-O-acetyl-N-acetyl-2,3-dehydro-2-deoxy-4-epineuraminic acid methyl ester. Carbohydr Res 2000; 329:253-6. [PMID: 11086708 DOI: 10.1016/s0008-6215(00)00162-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
X-ray crystallographic analysis was performed on a single crystal of 4,7,8,9-tetra-O-acetyl-N-acetyl-2,3-dehydro-2-deoxy-4-epi-neuraminic acid methyl ester. The pyranoid ring adopts the 5H6 conformation.
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Affiliation(s)
- W Li
- Department of Pharmacology, Department of Basic Medicine, Second Military Medical University, Shanghai, PR China
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11
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Sun XL, Sato N, Kai T, Furuhata K. Novel practical synthesis of Kdn2en and its C-4 nitrogen-modified derivatives. Carbohydr Res 2000; 323:1-6. [PMID: 10782279 DOI: 10.1016/s0008-6215(99)00236-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A practical synthesis of Kdn2en and 4-amino-4-deoxy-Kdn2en has been achieved via a key intermediate, methyl 4,5,7,8,9-penta-O-acetyl-2,6-anhydro-3-deoxy-D-glycero-D-galacto-non-2- enonate, which has been prepared from Kdn in three steps in 91% overall yield.
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Affiliation(s)
- X L Sun
- School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan
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12
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13
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Kok GB, von Itzstein M. A regio- and stereo-selective introduction of azide at C-4 of 2,3-unsaturated N-acetylneuraminic acids. Carbohydr Res 1997. [DOI: 10.1016/s0008-6215(97)00124-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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15
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Schauer R, Kamerling JP. Chemistry, biochemistry and biology of sialic acids ☆. NEW COMPREHENSIVE BIOCHEMISTRY 1997; 29. [PMCID: PMC7147860 DOI: 10.1016/s0167-7306(08)60624-9] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Roland Schauer
- Biochemisches Institut, Christian-Albrechls-Universität zu Kiel, Germany
| | - Johannis P. Kamerling
- Bijuoet Center, Department of Bio-Organic Chemistry, Utrecht University, The Netherlands
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16
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Kok GB, Mackey BL, von Itzstein M. The reaction of the peracetate methyl esters of N-acetylneuraminic acid (Neu5Ac), 3-deoxy-d-glycero-d-galacto-2-nonulosonic acid (Kdn), and 3-deoxy-d-manno-2-octulosonic acid (Kdo) with trimethylsilyl trifluoromethanesulfonate. Carbohydr Res 1996. [DOI: 10.1016/0008-6215(96)00120-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Tomoo T, Kondo T, Abe H, Tsukamoto S, Isobe M, Goto T. An efficient short-step total synthesis of ganglioside GM3: effective usage of the neighbouring group participation strategy. Carbohydr Res 1996; 284:207-22. [PMID: 8653720 DOI: 10.1016/0008-6215(96)00015-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We have developed an efficient methodology for highly stereoselective sialylation using 3-position substituted sialic acids and have prepared 2a having a 3 beta-phenylthio group as a sialic donor. Glycosylation of suitably protected lactoside 3 with 2a gave only the alpha-sialyl trisaccharide 16 in good yield. Condensation of the azidosphingosine 4 with the acetate 17 using promotors, DMTST or NIS-TfOH, afforded the glycolipid 18, which was directly transformed to 20 by reduction with Bu3P and subsequent acylation with octadecanoic acid in the presence of WSC. Removal of the protecting groups generated ganglioside GM3 (1).
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Affiliation(s)
- T Tomoo
- Laboratory of Organic Chemistry, School of Agriculture, Nagoya University, Japan
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18
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Stereoselective synthesis and transformation of siastatin B, A novel glycosidase inhibitor, directed toward new drugs for viral infection and tumor metastasis. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/s1572-5995(06)80053-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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19
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Driguez PA, Barrere B, Quash G, Doutheau A. Synthesis of transition-state analogues as potential inhibitors of sialidase from Influenza virus. Carbohydr Res 1994; 262:297-310. [PMID: 7982221 DOI: 10.1016/0008-6215(94)84186-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Sodium 5-acetamido-2,6-anhydro-3,4,5-trideoxy-D-manno-non-2-enonate (2) has been synthesized from N-acetyl-4-deoxy-neuraminic acid methyl ester (4). Sodium 2,6-anhydro-3-deoxy-L-arabino-hept-2-enonate (3), 4-acetamido-2,6-anhydro-3,4-dideoxy-L-arabino-hept-2-enonic acid (18e), and 4-acetamido-2,6-anhydro-3,4-dideoxy-L-ribo-hept-2-enonic acid (18a) have been prepared from L-arabinose. The above compounds were investigated as inhibitors of sialidase from Influenza virus. Only compound 2 showed a significant inhibitory activity (Ki 8 x 10(-2) mM) against the enzyme.
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Affiliation(s)
- P A Driguez
- Laboratoire de Chimie Organique, Institut National des Sciences Appliquées, Villeurbanne, France
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20
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Ercegovic T, Magnusson G. A new N-acetylneuraminic acid donor for highly stereoselective α-sialylation. ACTA ACUST UNITED AC 1994. [DOI: 10.1039/c39940000831] [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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21
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Nishimura Y, Kudo T, Umezawa Y, Kondo S, Takeuchi T. Design of Potential Neuraminidase Inhibitors By Dehydration, Deoxygenation and Epimerization of Siastatin B. ACTA ACUST UNITED AC 1992. [DOI: 10.1080/10575639208048884] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Cross AS, Wright DG. Mobilization of sialidase from intracellular stores to the surface of human neutrophils and its role in stimulated adhesion responses of these cells. J Clin Invest 1991; 88:2067-76. [PMID: 1721626 PMCID: PMC295803 DOI: 10.1172/jci115536] [Citation(s) in RCA: 81] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Desialation of cell surfaces has been associated with the initiation or modification of diverse cellular functions. In these studies we have examined the subcellular distribution of sialidase (SE) in human neutrophils as well as the mobilization of this enzyme following neutrophil activation. Separation of subcellular fractions by density gradient centrifugation showed that SE is present not only in neutrophil primary and secondary granule populations, like lysozyme, but also in plasma membrane fractions. Neutrophil activation was associated with a redistribution of SE from secondary granule-enriched fractions to the plasma membrane. Furthermore, SE activity detected on the surface of intact neutrophils with a fluorescent SE substrate increased rapidly after activation with kinetics that matched both the loss of total cell-associated sialic acid and release of free sialic acid from the cells. These activation-dependent events were in each case blocked by incubation of neutrophils with the SE inhibitor, 2-deoxy-N-acetyl-neuraminic acid. Aggregation responses of neutrophils as well as adhesion responses to nylon and plastic surfaces were also inhibited by 2-deoxyNANA. Our findings indicate that the activation-dependent desialation of the neutrophil surface is associated with mobilization of an endogenous SE to the plasma membrane and has a role in stimulated adhesion responses of these cells.
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Affiliation(s)
- A S Cross
- Department of Bacterial Diseases, Walter Reed Army Institute of Research, Washington, D.C. 20307-5100
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23
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Sugiyama N, Saito KI, Fujikura K, Sugai K, Yamada N, Goto M, Ban C, Hayasaka E, Tomita K. Thermal and photochemical degradation of sodium N-acetylneuraminate. Carbohydr Res 1991. [DOI: 10.1016/0008-6215(91)84042-d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Schreiner E, Zbiral E, Kleineidam RG, Schauer R. Structural Variations on N-acetylneuraminic acid, 20. Synthesis of some 2,3-didehydro-2-deoxysialic Acids structurally varied at C-4 and their behavior towards Sialidase from Vibrio cholerae. ACTA ACUST UNITED AC 1991. [DOI: 10.1002/jlac.199119910124] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Czollner L, Kuszmann J, Vasella A. Synthesis of Pyrrolidine Analogues ofN-Acetylneuraminic Acid as Potential Sialidase Inhibitors. Helv Chim Acta 1990. [DOI: 10.1002/hlca.19900730522] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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27
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Legler G. Glycoside hydrolases: mechanistic information from studies with reversible and irreversible inhibitors. Adv Carbohydr Chem Biochem 1990; 48:319-84. [PMID: 2077872 DOI: 10.1016/s0065-2318(08)60034-7] [Citation(s) in RCA: 476] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- G Legler
- Institut für Biochemie, Universität Köln, Federal Republic of Germany
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28
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Zbiral E, Schreiner E, Christian R, Kleineidam RG, Schauer R. Structural Variations ofN-Acetylneuraminic Acid, 10. Synthesis of 2,7-, 2,8-, and 2,9-Dideoxy- and 2,4,7-Trideoxy-2,3-didehydro-N-acetylneuraminic Acids and Their Behavior Towards Sialidase fromVibrio cholerae. ACTA ACUST UNITED AC 1989. [DOI: 10.1002/jlac.198919890131] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Baumberger F, Vasella A, Schauer R. Synthesis of New Sialidase Inhibitors, 6-Amino-6-Deoxysialic Acids. Helv Chim Acta 1988. [DOI: 10.1002/hlca.19880710216] [Citation(s) in RCA: 37] [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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30
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Zbiral E, Brandstetter HH, Schreiner EP. Strukturelle Abwandlungen an N-Acetylneuramins�uren, 8 Synthese von 7-, 8-, 9-Desoxy- und 4,7-Didesoxyneuramins�ure. MONATSHEFTE FUR CHEMIE 1988. [DOI: 10.1007/bf00810094] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Zbiral E, Brandstetter HH, Christian R, Schauere R. Structural Variations ofN-Acetylneuraminic Acid, 7. Synthesis of the C-7-, C-8-, and C-7,8-Side Chain Epimers of 2-Deoxy-2,3-didehydro-N-acetylneuraminic Acid and Their Behaviour Towards Sialidase fromVibrio cholerae. ACTA ACUST UNITED AC 1987. [DOI: 10.1002/jlac.198719870828] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Christian R, Schulz G, Brandstetter HH, Zbiral E. On the side-chain conformation of N-acetylneuraminic acid and its epimers at C-7, C-8, and C-7,8. Carbohydr Res 1987; 162:1-11. [PMID: 3594474 DOI: 10.1016/0008-6215(87)80195-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The side-chain conformation of N-acetylneuraminic acid and analogs has been studied by n.m.r. spectroscopy. The results of the 1H-, 13C-n.m.r.-, and 1H-nuclear-Overhauser-enhancement measurements were used to distinguish between different local-minima conformations suggested by hard-sphere calculations. Attempts were made to correlate the major conformation determined for each compound with the behavior towards activation with N-acetylneuraminic acid-CMP-synthetase.
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33
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Kanie O, Nakamura J, Itoh Y, Kiso M, Hasegawa A. Synthesis of 3-S-C (5-Acetamido-3.5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylonic Acid)-3-thio-galactopyranose Derivatives. J Carbohydr Chem 1987. [DOI: 10.1080/07328308708058863] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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34
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Pozsgay V, Jennings H, Kasper DL. 4,8-anhydro-N-acetylneuraminic acid. Isolation from edible bird's nest and structure determination. EUROPEAN JOURNAL OF BIOCHEMISTRY 1987; 162:445-50. [PMID: 3803396 DOI: 10.1111/j.1432-1033.1987.tb10622.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A new, sialic-acid-derived compound was isolated from the acid hydrolysate of edible bird's nest by ion-exchange chromatography. Combined use of mass spectroscopy and 1H- and 13C-NMR spectroscopy established that it is the 4,8-anhydro derivative of N-acetylneuraminic acid and that in solutions it exists in two tautomeric forms. The formation of the new compound supports and earlier findings that in the glycoprotein of edible bird's nest at least a portion of N-acetylneuraminic acid is acetylated at HO-4.
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Hagedorn HW, Brossmer R. Synthesis and Biological Properties ofN-Acetyl-4-deoxy-D-neuraminic Acid. Helv Chim Acta 1986. [DOI: 10.1002/hlca.19860690837] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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36
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Baumberger F, Vasella A. Deoxy-nitrosugars. 16th Communication. Synthesis ofN-acetyl-4-deoxyneuraminic acid. Helv Chim Acta 1986. [DOI: 10.1002/hlca.19860690702] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Baumberger F, Vasella A. Deoxy-nitrosugars 15th communication Synthesis ofN-acetylneuraminic acid andN-acetyl-4-epineuraminic Acid. Helv Chim Acta 1986. [DOI: 10.1002/hlca.19860690528] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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38
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Nöhle U, Shukla AK, Schröder C, Reuter G, Schauer R, Kamerling JP, Vliegenthart JF. Structural parameters and natural occurrence of 2-deoxy-2,3-didehydro-N-glycoloylneuraminic acid. EUROPEAN JOURNAL OF BIOCHEMISTRY 1985; 152:459-63. [PMID: 4054116 DOI: 10.1111/j.1432-1033.1985.tb09219.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
2-Deoxy-2,3-didehydro-N-glycoloylneuraminic acid has been found to occur in porcine, bovine and equine submandibular glands as well as in the urine of pig, horse and rat. This novel, unsaturated sialic acid was isolated by gel filtration and ion-exchange chromatography. Final purification was achieved by column chromatography or by preparative thin-layer chromatography on cellulose. The structural analysis was performed by combined capillary gas-liquid chromatography/mass spectrometry. The various data were compared with those from synthetic 2-deoxy-2,3-didehydro-N-glycoloylneuraminic acid. Besides of the unsaturated N-glycoloylated sialic acid, also the corresponding N-acetylated derivative was present in the materials analyzed. The inhibitory effect of 2-deoxy-2,3-didehydro-N-glycoloylneuraminic acid on Vibrio cholerae sialidase using N-acetylneuraminyl-(alpha 2----3)-lactose as substrate is slightly higher (50% inhibition at 10 microM) when compared with 2-deoxy-2,3-didehydro-N-acetylneuraminic acid (50% inhibition at 15 microM).
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Fujita-Yamaguchi Y, Sato Y, Kathuria S. Removal of sialic acids from the purified insulin receptor results in enhanced insulin-binding and kinase activities. Biochem Biophys Res Commun 1985; 129:739-45. [PMID: 3893431 DOI: 10.1016/0006-291x(85)91954-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Neuraminidase treatment of the purified insulin receptor resulted in an increase in both insulin-binding and kinase activities. Neuraminidase-treated alpha and beta subunits moved further than native subunits on sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) under reducing conditions. The enhancement of insulin-binding and kinase activities and increased mobility of the subunits on SDS-PAGE were not observed when the receptor was treated with neuraminidase in the presence of neuraminidase inhibitor. These results suggest that terminal sialic acid residues have a significant role in insulin-binding and kinase activities. The involvement of sialic acid residues in the activities of the receptor has not been detected by previous studies.
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Sharma MN, Eby R. Synthesis and conformational studies of 2-beta-chloro, 1-alpha-fluoro, and 2-beta-fluoro derivatives of 2-deoxy-N-acetyl-neuraminic acid. Carbohydr Res 1984; 127:201-10. [PMID: 6722841 DOI: 10.1016/0008-6215(84)85354-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
5-Acetamido-4,7,8,9-tetra-O-acetyl-2,3,5-trideoxy-2-fluoro-D-glycero-alp ha- and -beta-D- galacto -2- nonulosonic acid methyl esters and the beta-chloro analog were synthesized from N-acetylneuraminic acid. Their 1H- and 13C-n.m.r.spectra were completely assigned by using single-frequency decoupling, off-resonance decoupling, and spin-simulation programs. Bond angles estimated from the 1H coupling-constants indicate that all of the compounds adopt the 2C5 (L) conformation with minor conformational differences in the C3 side chain. 5-Acetamido-2,3,5,-tri-deoxy-2-fluoro-D-glycero-alpha- and -beta-D- galacto -2- nonulosonic acid and their methyl esters were also prepared.
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Paulsen H, Tietz H. Synthese eines trisaccharides aus N-acetylneuraminsäure und N-acetyllactosamin. Carbohydr Res 1984. [DOI: 10.1016/0008-6215(84)85141-1] [Citation(s) in RCA: 91] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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42
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Varki A, Diaz S. A neuraminidase from Streptococcus sanguis that can release O-acetylated sialic acids. J Biol Chem 1983. [DOI: 10.1016/s0021-9258(17)44199-8] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Flashner M, Kessler J, Tanenbaum SW. The interaction of substrate-related ketals with bacterial and viral neuraminidases. Arch Biochem Biophys 1983; 221:188-96. [PMID: 6830254 DOI: 10.1016/0003-9861(83)90135-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Arthrobacter sialophilus neuraminidase catalyzes the hydration of 5-acetamido-2,6-anhydro-3,5-dideoxy-D-glycero-D-galacto-non-2-enonic acid (2,3-dehydro-AcNeu) with Km and kcat values of 8.9 X 10(-4) M and 6.40 X 10(-4) s-1, respectively. The methyl ester of 2,3-dehydro-AcNeu as well as 2,3-dehydro-4-epi-AcNeu are also hydrated by the enzyme. The product resulting from the enzymatic hydration of 2,3-dehydro-AcNeu is N-acetylneuraminic acid. A series of derivatives of 2,3-dehydro-AcNeu (K1, 1.60 X 10(-6) M) including 2,3-dehydro-4-epi-AcNeu (2.10 X 10(-4) M) and 2,3-dehydro-4-keto-AcNeu (K1 = 6.10 X 10(-5) M) were each competitive inhibitors of the enzyme. The methyl esters of these ketal derivatives were also competitive enzyme inhibitors. Dissociation constants for these ketals were determined independently by fluorescence enzyme titrations which gave values similar to those found kinetically. These six relatives of 2,3-dehydro-AcNeu were also competitive inhibitors for the influenza viral neuraminidases. For the viral neuraminidases, the dissociation constant for 2,3-dehydro-AcNeu and its methyl ester were 2.40 X 10(-6) and 1.17 X 10(-3) M, respectively. The interpretation placed upon the K1 values determined for these ketals against the Arthrobacter versus influenza neuraminidases is that the bacterial enzyme has a more flexible glycone binding site.
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Heppelmann B, Eschenfelder V, Brossner R, Rahmann H. Histochemical localization of neuraminidase in the CNS of mice and fish by means of 5-brom-3-indolyl-alpha-ketoside of 5-N-acetyl-D-neuraminic acid (BI-NeuAc). Acta Histochem 1983; 73:41-5. [PMID: 6195879 DOI: 10.1016/s0065-1281(83)80073-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The applicability of the 5-brom-3-indolyl-alpha-ketoside of N-acetyl-D-neuraminic acid (BI-NeuAc) as substrate for the histochemical indication of neuraminidase (GOSSRAU et al. 1977) was examined in frozen sections of brain, small intestine and kidney from suckling and adult mice and respectively from a cichlid fish (Sarotherodon mosambicus) with and without formaldehyde fixation. Following biochemical investigations using tritiated gangliosides as substrate a decrease in the activity of neuraminidase took place from about 50 to 80% after tissue fixation with formaldehyde. Nevertheless significant histochemical reactions were found only in fixed tissue sections. The specificity of this reaction was shown by means of inhibitions tests using 2,3-dehydro-2-desoxy-N-acetyl-neuraminic acid according to KUMAR et al. (1981). In contrast to distinct staining of neuraminidase activity in the small intestine and kidney, only faint reactions occurred in brain sections. From this it is concluded that the application of the new synthetic substrate for quantitative staining of neuraminidase seems to be not very suitable for the CNS.
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Flashner M, Kessler J, Tanenbaum SW. Structural requirements for neuraminidase induction in Arthrobacter sialophilus. J Bacteriol 1982; 151:1630-2. [PMID: 7107565 PMCID: PMC220453 DOI: 10.1128/jb.151.3.1630-1632.1982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The effectiveness of 13 N-acetylneuraminic acid derivatives as potential inducers of Arthrobacter sialophilus neuraminidase were examined. N-Acetylneuraminic acid nitrogen and thioglycosides were not inducers, whereas 2,3-dehydro-N-acetylneuraminic acid, a transition state analog for neuraminidases, was the most effective inductive ligand. The C-4 hydroxyl function of N-acetylneuraminic acid was essential for enzyme derepression.
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Nöhle U, Beau JM, Schauer R. Uptake, metabolism and excretion of orally and intravenously administered, double-labeled N-glycoloylneuraminic acid and single-labeled 2-deoxy-2,3-dehydro-N-acetylneuraminic acid in mouse and rat. EUROPEAN JOURNAL OF BIOCHEMISTRY 1982; 126:543-8. [PMID: 7140746 DOI: 10.1111/j.1432-1033.1982.tb06815.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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47
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Kumar V, Tanenbaum SW, Flashner M. Methyl 5-acetamido-2,6-anhydro-3,5-dideoxy-d-manno-non-2-en-4-ulosonate. Carbohydr Res 1982. [DOI: 10.1016/s0008-6215(00)80690-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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48
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Kessler J, Heck J, Tanenbaum SW, Flashner M. Substrate and product specificity of Arthrobacter sialophilus neuraminidase. J Biol Chem 1982. [DOI: 10.1016/s0021-9258(18)34634-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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49
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Kumar V, Tanenbaum SW, Flashner M. Characterization of Lewis-acid transformation-products from 2,3-unsaturated relatives of methyl N-acetylneuraminate during attempted glycoside synthesis. Carbohydr Res 1982. [DOI: 10.1016/s0008-6215(00)80807-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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50
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