1
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Sang D, Dong B, Yu K, Tian J. Ferric Chloride-Mediated Transacylation of N-Acylsulfonamides. J Org Chem 2024; 89:2306-2319. [PMID: 38272854 DOI: 10.1021/acs.joc.3c02288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Transacylation of N-acylsulfonamides, which replaces the N-acyl group with a new one, is a challenging and underdeveloped fundamental transformation. Herein, a general method for transacylation of N-acylsulfonamides is presented. The transformation is enabled by coincident catalytic reactivities of FeCl3 for nonhydrolytic deacylation of N-acylsulfonamides and subsequent acylation of the resultant sulfonamides and can be conducted either stepwise or in a one-pot manner. GaCl3 and RuCl3·xH2O are similarly effective for the reaction. This method is mild, efficient, and operationally simple. A variety of functional groups such as halogeno, keto, nitro, cyano, ether, and ester are well tolerated, providing the transacylation products in good to excellent yields.
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Affiliation(s)
- Dayong Sang
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
| | - Bingqian Dong
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
| | - Kangkang Yu
- College of Biotechnology, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
| | - Juan Tian
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
- Hubei Provincial Key Laboratory of Drug Synthesis and Optimization, Jingmen, Hubei 448000, P. R. China
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2
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Mamirgova ZZ, Zinin AI, Chizhov AO, Kononov LO. Synthesis of sialyl halides with various acyl protective groups. Carbohydr Res 2024; 536:109033. [PMID: 38295530 DOI: 10.1016/j.carres.2024.109033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/31/2023] [Accepted: 01/05/2024] [Indexed: 02/02/2024]
Abstract
Glycosyl halides are historically one of the first glycosyl donors used in glycosylation reactions, and interest in glycosylation reactions involving this class of glycosyl donors is currently increasing. New methods for their activation have been proposed and effective syntheses of oligosaccharides with their participation have been developed. At the same time, the possibilities of using these approaches to the synthesis of sialosides are restricted by the limited diversity of known sialyl halides (previously, mainly sialyl chlorides, less often sialyl bromides and sialyl fluorides, with acetyl (Ac) groups at the oxygen atoms and AcNH, Ac2N and N3 groups at C-5 were used). This work describes the synthesis of six new N-acetyl- and N-trifluoroacetyl-sialyl chlorides and bromides with O-chloroacetyl and O-trifluoroacetyl protective groups. Preparation of N,O-trifluoroacetyl protected derivatives was made possible due to development of the synthesis of sialic acid methyl ester pentaol with N-trifluoroacetyl group.
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Affiliation(s)
- Zarina Z Mamirgova
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky Prosp. 47, 119991, Russian Federation
| | - Alexander I Zinin
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky Prosp. 47, 119991, Russian Federation
| | - Alexander O Chizhov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky Prosp. 47, 119991, Russian Federation
| | - Leonid O Kononov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky Prosp. 47, 119991, Russian Federation.
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3
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Zhang Y, Xiao G. Chemical synthesis of TMG-chitotriomycin. J Carbohydr Chem 2021. [DOI: 10.1080/07328303.2021.2009504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Yunqin Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, China
| | - Guozhi Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Kunming, China
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4
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Rota P, La Rocca P, Franco V, Allevi P. Straightforward access to 2,3- and 3,4-unsaturated derivatives of N-glycolylneuraminic acid. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131699] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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Rota P, La Rocca P, Allevi P, Pappone C, Anastasia L. Intramolecular Lactones of Sialic Acids. Int J Mol Sci 2020; 21:E8098. [PMID: 33143039 PMCID: PMC7663150 DOI: 10.3390/ijms21218098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 12/22/2022] Open
Abstract
The so-called "sialo-chemical-biology" has become an attractive research area, as an increasing number of natural products containing a sialic acid moiety have been shown to play important roles in biological, pathological, and immunological processes. The intramolecular lactones of sialic acids are a subclass from this crucial family that could have central functions in the discrimination of physiological and pathological conditions. In this review, we report an in-depth analysis of the synthetic achievements in the preparation of the intramolecular lactones of sialic acids (1,4-, 1,7- and γ-lactones), in their free and/or protected form. In particular, recent advances in the synthesis of the 1,7-lactones have allowed the preparation of key sialic acid derivatives. These compounds could be used as authentic reference standards for their correct determination in biological samples, thus overcoming some of the limitations of the previous analytical procedures.
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Affiliation(s)
- Paola Rota
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20133 Milan, Italy;
| | - Paolo La Rocca
- Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy;
| | - Pietro Allevi
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20133 Milan, Italy;
| | - Carlo Pappone
- Arrhythmology Department, IRCCS Policlinico San Donato, 20097 San Donato Milanese, Milan, Italy;
- Faculty of Medicine, University of Vita-Salute San Raffaele, 20132 Milan, Italy
| | - Luigi Anastasia
- Faculty of Medicine, University of Vita-Salute San Raffaele, 20132 Milan, Italy
- Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, 20097 San Donato Milanese, Milan, Italy
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6
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Zheng Z, van der Werf A, Deliaval M, Selander N. Synthesis of Fluorinated Amide Derivatives via a Radical N-Perfluoroalkylation-Defluorination Pathway. Org Lett 2020; 22:2791-2796. [PMID: 32208612 PMCID: PMC7311088 DOI: 10.1021/acs.orglett.0c00768] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
![]()
A one-pot approach
to fluorinated hydroxamic acid, amide, and thioamide
derivatives is reported. The reaction proceeds via an N-perfluoroalkylation
of nitrosoarenes with perfluoroalkanesulfinates, resulting in labile
N-perfluoroalkylated hydroxylamines. By the addition of suitable additives,
a controllable oxy/thiodefluorination of the fluorinated hydroxylamine
intermediates was achieved. The method highlights N-perfluoroalkylated
amines as versatile intermediates for further synthesis.
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Affiliation(s)
- Zhiyao Zheng
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Angela van der Werf
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Marie Deliaval
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Nicklas Selander
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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7
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Laborda P, Lyu Y, Parmeggiani F, Lu A, Wang W, Huang Y, Huang K, Guo J, Liu L, Flitsch SL, Voglmeir J. An Enzymatic N‐Acylation Step Enables the Biocatalytic Synthesis of Unnatural Sialosides. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914338] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Pedro Laborda
- Glycomics and Glycan Bioengineering Research Center (GGBRC)College of Food Science and TechnologyNanjing Agricultural University 1 Weigang 210095 Nanjing China
- Current address: School of Life SciencesNantong University 19 Qixiu Road 226019 Nantong China
| | - Yong‐Mei Lyu
- Glycomics and Glycan Bioengineering Research Center (GGBRC)College of Food Science and TechnologyNanjing Agricultural University 1 Weigang 210095 Nanjing China
| | - Fabio Parmeggiani
- School of Chemistry & Manchester Institute of BiotechnologyThe University of Manchester 131 Princess Street M1 7DN Manchester UK
| | - Ai‐Min Lu
- College of SciencesNanjing Agricultural University 1 Weigang 210095 Nanjing China
| | - Wen‐Jiao Wang
- Glycomics and Glycan Bioengineering Research Center (GGBRC)College of Food Science and TechnologyNanjing Agricultural University 1 Weigang 210095 Nanjing China
| | - Ying‐Ying Huang
- Glycomics and Glycan Bioengineering Research Center (GGBRC)College of Food Science and TechnologyNanjing Agricultural University 1 Weigang 210095 Nanjing China
| | - Kun Huang
- School of Chemistry & Manchester Institute of BiotechnologyThe University of Manchester 131 Princess Street M1 7DN Manchester UK
| | - Juan Guo
- Glycomics and Glycan Bioengineering Research Center (GGBRC)College of Food Science and TechnologyNanjing Agricultural University 1 Weigang 210095 Nanjing China
| | - Li Liu
- Glycomics and Glycan Bioengineering Research Center (GGBRC)College of Food Science and TechnologyNanjing Agricultural University 1 Weigang 210095 Nanjing China
| | - Sabine L. Flitsch
- School of Chemistry & Manchester Institute of BiotechnologyThe University of Manchester 131 Princess Street M1 7DN Manchester UK
| | - Josef Voglmeir
- Glycomics and Glycan Bioengineering Research Center (GGBRC)College of Food Science and TechnologyNanjing Agricultural University 1 Weigang 210095 Nanjing China
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8
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Laborda P, Lyu YM, Parmeggiani F, Lu AM, Wang WJ, Huang YY, Huang K, Guo J, Liu L, Flitsch SL, Voglmeir J. An Enzymatic N-Acylation Step Enables the Biocatalytic Synthesis of Unnatural Sialosides. Angew Chem Int Ed Engl 2020; 59:5308-5311. [PMID: 31834658 DOI: 10.1002/anie.201914338] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 12/10/2019] [Indexed: 12/22/2022]
Abstract
Chitin is one of the most abundant and cheaply available biopolymers in Nature. Chitin has become a valuable starting material for many biotechnological products through manipulation of its N-acetyl functionality, which can be cleaved under mild conditions using the enzyme family of de-N-acetylases. However, the chemoselective enzymatic re-acylation of glucosamine derivatives, which can introduce new stable functionalities into chitin derivatives, is much less explored. Herein we describe an acylase (CmCDA from Cyclobacterium marinum) that catalyzes the N-acylation of glycosamine with a range of carboxylic acids under physiological reaction conditions. This biocatalyst closes an important gap in allowing the conversion of chitin into complex glycosides, such as C5-modified sialosides, through the use of highly selective enzyme cascades.
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Affiliation(s)
- Pedro Laborda
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, 210095, Nanjing, China.,Current address: School of Life Sciences, Nantong University, 19 Qixiu Road, 226019, Nantong, China
| | - Yong-Mei Lyu
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, 210095, Nanjing, China
| | - Fabio Parmeggiani
- School of Chemistry & Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, M1 7DN, Manchester, UK
| | - Ai-Min Lu
- College of Sciences, Nanjing Agricultural University, 1 Weigang, 210095, Nanjing, China
| | - Wen-Jiao Wang
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, 210095, Nanjing, China
| | - Ying-Ying Huang
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, 210095, Nanjing, China
| | - Kun Huang
- School of Chemistry & Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, M1 7DN, Manchester, UK
| | - Juan Guo
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, 210095, Nanjing, China
| | - Li Liu
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, 210095, Nanjing, China
| | - Sabine L Flitsch
- School of Chemistry & Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, M1 7DN, Manchester, UK
| | - Josef Voglmeir
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, 210095, Nanjing, China
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9
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Romanò C, Oscarson S. Synthesis of lactosamine-based building blocks on a practical scale and investigations of their assembly for the preparation of 19F-labelled LacNAc oligomers. Org Biomol Chem 2019; 17:2265-2278. [PMID: 30724303 DOI: 10.1039/c8ob03066a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The ubiquitous disaccharide N-acetyllactosamine (LacNAc type 2, Galβ1,4GlcNAc) is often over-expressed on the surface of cancer cells where it is bound by tumour secreted galectins contributing to cancer-related processes such as metastasis, adhesion, tumour survival, and immune escape. To facilitate NMR investigations into the binding interactions between oligo-LacNAc structures and galectins, which can show both exo- and endo-binding behaviour, a library of regioselectively 19F-labelled oligo-LacNAc structures was required. Herein, the synthesis on a practical scale of various N-protected (Troc, Phth, TFAc) lactosamine donors is reported starting from commercially available lactosamine hydrochloride. Investigations into their glycosylations with lactosamine acceptors to form 19F-containing LacNAc oligomers showed that benzylated acceptors significantly improved the yields over acetylated ones, and that, gratifyingly, the almost untried N-trifluoroacetamide (NTFAc) protected donors, already containing the desired 19F-label, were found to be optimal, both considering reaction yields and purification of the glycosylation reactions. The NTFAc group of reducing end acceptors was introduced through N-amide transacylation of linker-equipped LacNAc structures. A [2 + 2] synthetic approach was optimized for the preparation of tetrasaccharide LacNAc/TFAc-dimers and also further expanded to the synthesis of hexasaccharide LacNAc/TFAc-trimer structures.
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Affiliation(s)
- Cecilia Romanò
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland.
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10
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Potent Inhibitors against Newcastle Disease Virus Hemagglutinin-Neuraminidase. ChemMedChem 2018; 13:236-240. [DOI: 10.1002/cmdc.201700755] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Indexed: 01/05/2023]
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11
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Rota P, Papini N, La Rocca P, Montefiori M, Cirillo F, Piccoli M, Scurati R, Olsen L, Allevi P, Anastasia L. Synthesis and chemical characterization of several perfluorinated sialic acid glycals and evaluation of their in vitro antiviral activity against Newcastle disease virus. MEDCHEMCOMM 2017; 8:1505-1513. [PMID: 30108862 PMCID: PMC6072510 DOI: 10.1039/c7md00072c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Accepted: 06/02/2017] [Indexed: 12/12/2022]
Abstract
Newcastle Disease Virus (NDV), belonging to the Paramyxoviridae family, causes a serious infectious disease in birds, resulting in severe losses in the poultry industry every year. Haemagglutinin neuraminidase glycoprotein (HN) has been recognized as a key protein in the viral infection mechanism, and its inhibition represents an attractive target for the development of new drugs based on sialic acid glycals, with the 2-deoxy-2,3-didehydro-d-N-acetylneuraminic acid (Neu5Ac2en) as their backbone. Herein we report the synthesis of several Neu5Ac2en glycals and of their perfluorinated C-5 modified derivatives, including their respective stereoisomers at C-4, together with evaluation of their in vitro antiviral activity. While all synthesized compounds were found to be active HN inhibitors in the micromolar range, we found that their potency was influenced by the chain-length of the C-5 perfluorinated acetamido functionality. Thus, the binding modes of the inhibitors were also investigated by performing a docking study. Moreover, the perfluorinated glycals were found to be more active than the corresponding normal C-5 acylic derivatives. Finally, cell-cell fusion assays on NDV infected cells revealed that the addition of a newly synthesized C-4α heptafluorobutyryl derivative almost completely inhibited NDV-induced syncytium formation.
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Affiliation(s)
- P Rota
- Laboratory of Stem Cells for Tissue Engineering , IRCCS Policlinico San Donato, Piazza Malan 2 , 20097 San Donato Milanese , Milan , Italy . ; ; Tel: +0252774674
- Department of Biomedical , Surgical and Dental Sciences , University of Milan , Via Saldini 50 , 20133 Milan , Italy
| | - N Papini
- Department of Medical Biotechnology and Translational Medicine , University of Milan , Via Fratelli Cervi 93 , 20090 Segrate , Milan , Italy
| | - P La Rocca
- Laboratory of Stem Cells for Tissue Engineering , IRCCS Policlinico San Donato, Piazza Malan 2 , 20097 San Donato Milanese , Milan , Italy . ; ; Tel: +0252774674
- Department of Biomedical , Surgical and Dental Sciences , University of Milan , Via Saldini 50 , 20133 Milan , Italy
| | - M Montefiori
- Department of Drug Design and Pharmacology , University of Copenhagen , Universitetsparken 2 , 2100 Copenhagen , Denmark
| | - F Cirillo
- Laboratory of Stem Cells for Tissue Engineering , IRCCS Policlinico San Donato, Piazza Malan 2 , 20097 San Donato Milanese , Milan , Italy . ; ; Tel: +0252774674
| | - M Piccoli
- Laboratory of Stem Cells for Tissue Engineering , IRCCS Policlinico San Donato, Piazza Malan 2 , 20097 San Donato Milanese , Milan , Italy . ; ; Tel: +0252774674
| | - R Scurati
- Department of Drug Design and Pharmacology , University of Copenhagen , Universitetsparken 2 , 2100 Copenhagen , Denmark
| | - L Olsen
- Department of Drug Design and Pharmacology , University of Copenhagen , Universitetsparken 2 , 2100 Copenhagen , Denmark
| | - P Allevi
- Department of Biomedical , Surgical and Dental Sciences , University of Milan , Via Saldini 50 , 20133 Milan , Italy
| | - L Anastasia
- Laboratory of Stem Cells for Tissue Engineering , IRCCS Policlinico San Donato, Piazza Malan 2 , 20097 San Donato Milanese , Milan , Italy . ; ; Tel: +0252774674
- Department of Biomedical Sciences for Health , University of Milan , Via Fratelli Cervi 9 , 20090 Segrate , Milan , Italy
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12
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Rota P, Anastasia L, Allevi P. Elucidation of several neglected reactions in the GC-MS identification of sialic acids as heptafluorobutyrates calls for an urgent reassessment of previous claims. Org Biomol Chem 2015; 13:4931-9. [PMID: 25813858 DOI: 10.1039/c5ob00081e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The current analytical protocol used for the GC-MS determination of free or 1,7-lactonized natural sialic acids (Sias), as heptafluorobutyrates, overlooks several transformations. Using authentic reference standards and by combining GC-MS and NMR analyses, flaws in the analytical protocol were pinpointed and elucidated, thus establishing the scope and limitations of the method. It was demonstrated that (a) Sias 1,7-lactones, even if present in biological samples, decompose under the acidic hydrolysis conditions used for their release; (b) Sias 1,7-lactones are unpredicted artifacts, accidentally generated from their parent acids; (c) the N-acetyl group is quantitatively exchanged with that of the derivatizing perfluorinated anhydride; (d) the partial or complete failure of the Sias esterification-step with diazomethane leads to the incorrect quantification and structure attribution of all free Sias. While these findings prompt an urgent correction and improvement of the current analytical protocol, they could be instrumental for a critical revision of many incorrect claims reported in the literature.
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Affiliation(s)
- Paola Rota
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, via Saldini 50, I-20133 Milan, Italy.
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13
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Zhang MZ, Guo QH, Sheng WB, Guo CC. Potassiumtert-Butoxide-Mediated Amine Acyl Exchange Reaction ofN,N-Disubstituted Formamides with Aromatic Carbonyl DerivativesviaSequential CN Bond Cleavage/Formation: an Approach to Aromatic Amides. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500551] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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14
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Rota P, Cirillo F, Piccoli M, Gregorio A, Tettamanti G, Allevi P, Anastasia L. Synthesis and biological evaluation of several dephosphonated analogues of CMP-Neu5Ac as inhibitors of GM3-synthase. Chemistry 2015; 21:14614-29. [PMID: 26397189 DOI: 10.1002/chem.201501770] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Indexed: 01/02/2023]
Abstract
Previous studies demonstrated that reducing the GM3 content in myoblasts increased the cell resistance to hypoxic stress, suggesting that a pharmacological inhibition of the GM3 synthesis could be instrumental for the development of new treatments for ischemic diseases. Herein, the synthesis of several dephosphonated CMP-Neu5Ac congeners and their anti-GM3-synthase activity is reported. Biological activity testes revealed that some inhibitors almost completely blocked the GM3-synthase activity in vitro and reduced the GM3 content in living embryonic kidney 293A cells, eventually activating the epidermal growth factor receptor (EGFR) signaling cascade.
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Affiliation(s)
- Paola Rota
- Department of Biomedical, Surgical and Dental Sciences, Institution University of Milan, Via Saldini 50, 20133 Milan (Italy)
| | - Federica Cirillo
- Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, Milan (Italy)
| | - Marco Piccoli
- Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, Milan (Italy)
| | - Antonio Gregorio
- Department of Biomedical, Surgical and Dental Sciences, Institution University of Milan, Via Saldini 50, 20133 Milan (Italy)
| | - Guido Tettamanti
- Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, Milan (Italy)
| | - Pietro Allevi
- Department of Biomedical, Surgical and Dental Sciences, Institution University of Milan, Via Saldini 50, 20133 Milan (Italy)
| | - Luigi Anastasia
- Department of Biomedical Sciences for Health, Institution University of Milan, Segrate Milan (Italy). .,Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, Milan (Italy).
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15
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Despras G, Alix A, Urban D, Vauzeilles B, Beau JM. From chitin to bioactive chitooligosaccharides and conjugates: access to lipochitooligosaccharides and the TMG-chitotriomycin. Angew Chem Int Ed Engl 2014; 53:11912-6. [PMID: 25212734 DOI: 10.1002/anie.201406802] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Indexed: 01/28/2023]
Abstract
The direct and chemoselective N-transacylation of peracetylated chitooligosaccharides (COSs), readily obtained from chitin, to give per-N-trifluoroacetyl derivatives offers an attractive route to size-defined COSs and derived glycoconjugates. It involves the use of various acceptor building blocks and trifluoromethyl oxazoline dimer donors prepared with efficiency and highly reactive in 1,2-trans glycosylation reactions. This method was applied to the preparation of the important symbiotic glycolipids which are highly active on plants and to the TMG-chitotriomycin, a potent and specific inhibitor of insect, fungal, and bacterial N-acetylglucosaminidases.
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Affiliation(s)
- Guillaume Despras
- Université Paris-Sud and CNRS, Laboratoire de Synthèse de Biomolécules, Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182, 91405 Orsay (France)
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16
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Despras G, Alix A, Urban D, Vauzeilles B, Beau JM. From Chitin to Bioactive Chitooligosaccharides and Conjugates: Access to Lipochitooligosaccharides and the TMG-chitotriomycin. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406802] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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17
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Venkateswarlu V, Kumar KAA, Balgotra S, Reddy GL, Srinivas M, Vishwakarma RA, Sawant SD. CH Oxygenation andN-Trifluoroacylation of Arylamines Under Metal-Free Conditions: A Convenient Approach to 2-Aminophenols andN-Trifluoroacyl-ortho-aminophenols. Chemistry 2014; 20:6641-5. [DOI: 10.1002/chem.201402411] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Indexed: 11/05/2022]
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18
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Castangia R, Austeri M, Flitsch SL. Enzymatic Amine Acyl Exchange in Peptides on Gold Surfaces. Angew Chem Int Ed Engl 2012; 51:13016-8. [DOI: 10.1002/anie.201205404] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 08/30/2012] [Indexed: 11/09/2022]
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Castangia R, Austeri M, Flitsch SL. Enzymatischer Amin-Acyl-Austausch in Peptiden auf Gold-Oberflächen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205404] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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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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Rota P, Allevi P, Mattina R, Anastasia M. Reaction of N-acetylneuraminic acid derivatives with perfluorinated anhydrides: a short access to N-perfluoracylated glycals with antiviral properties. Org Biomol Chem 2010; 8:3771-6. [DOI: 10.1039/c004938g] [Citation(s) in RCA: 12] [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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