51
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Wang B, Bogh SA, Poulsen JCN, Laursen BW, Bols M. Synthesis of Isofagomine Derivatives as New Fluorescence pH Indicators/Glycosidase Inhibitors. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000522] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Bo Wang
- Department of chemistry; University of Copenhagen; Copenhagen Denmark
| | | | | | - Bo W. Laursen
- Department of chemistry; University of Copenhagen; Copenhagen Denmark
| | - Mikael Bols
- Department of chemistry; University of Copenhagen; Copenhagen Denmark
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52
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Elbatrawy AA, Kim EJ, Nam G. O‐GlcNAcase: Emerging Mechanism, Substrate Recognition and Small‐Molecule Inhibitors. ChemMedChem 2020; 15:1244-1257. [DOI: 10.1002/cmdc.202000077] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 05/22/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Ahmed A. Elbatrawy
- Center for Neuro-Medicine Brain Science Institute Korea Institutes of Science and Technology Seoul 02792 (Republic of Korea
- Division of Bio-Med KIST school Korea University of Science and Technology (UST) Gajungro 217 Youseong-gu Daejeon (Republic of Korea
| | - Eun Ju Kim
- Daegu University Department of Science Education-Chemistry Gyeongsan-si, Gyeongsangbuk-do Gyeongbuk 38453 (Republic of Korea
| | - Ghilsoo Nam
- Center for Neuro-Medicine Brain Science Institute Korea Institutes of Science and Technology Seoul 02792 (Republic of Korea
- Division of Bio-Med KIST school Korea University of Science and Technology (UST) Gajungro 217 Youseong-gu Daejeon (Republic of Korea
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53
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Koh HSA, Lu J, Zhou W. Structural Dependence of Sulfated Polysaccharide for Diabetes Management: Fucoidan From Undaria pinnatifida Inhibiting α-Glucosidase More Strongly Than α-Amylase and Amyloglucosidase. Front Pharmacol 2020; 11:831. [PMID: 32581797 PMCID: PMC7289976 DOI: 10.3389/fphar.2020.00831] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 05/20/2020] [Indexed: 11/26/2022] Open
Abstract
Fucoidan refers to a group of sulfated polysaccharide that is commonly obtained from various species of brown seaweed. Fucoidan has gained increased popularity among researchers in the recent years due to its numerous biological activities, including its inhibitory effects against starch hydrolyzing enzymes such as α-amylase and α-glucosidase. This highlights the potential of fucoidan as an antidiabetic agent in the management and prevention of diabetes mellitus. In this study, the inhibitory effects of fucoidan isolated from the New Zealand Undaria pinnatifida seaweed species against three starch hydrolyzing enzymes—α-amylase, α-glucosidase, and amyloglucosidase—was investigated. It was demonstrated that while the fucoidan exhibited significant inhibitory effects against all the three starch hydrolases, it is an uncompetitive inhibitor of α-amylase and amyloglucosidase, and is a competitive inhibitor of α-glucosidase. Moreover, it exhibited significantly stronger inhibitory effects against α-glucosidase than α-amylase, thus having the desirable characteristics as an antidiabetic agent.
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Affiliation(s)
- Hui Si Audrey Koh
- NUS Graduate School for Integrative Science and Engineering, National University of Singapore, Singapore, Singapore.,Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | - Jun Lu
- Faculty of Health and Environmental Sciences, School of Science, Auckland University of Technology, Auckland, New Zealand.,Faculty of Health and Environmental Sciences, School of Public Health and Interdisciplinary Studies, Auckland University of Technology, Auckland, New Zealand.,Maurice Wilkins Centre for Molecular Discovery, Auckland, New Zealand.,College of Food Engineering and Nutrition Sciences, Shaanxi Normal University, Xi'an, China
| | - Weibiao Zhou
- NUS Graduate School for Integrative Science and Engineering, National University of Singapore, Singapore, Singapore.,Department of Food Science and Technology, National University of Singapore, Singapore, Singapore.,National University of Singapore (Suzhou) Research Institute, Suzhou, China
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54
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Harit VK, Ramesh NG. A common strategy towards the synthesis of 1,4-dideoxy-1,4-imino-l-xylitol, deacetyl (+)-anisomycin and amino-substituted piperidine iminosugars. Carbohydr Res 2020; 492:107988. [PMID: 32387805 DOI: 10.1016/j.carres.2020.107988] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/17/2020] [Accepted: 03/17/2020] [Indexed: 12/15/2022]
Abstract
A strategy towards the synthesis of three different target molecules, namely 1,4-dideoxy-1,4-imino-l-xylitol, deacetyl (+)-anisomycin and amino-substituted piperidine iminosugars, molecules of potential biological and medicinal significance, is reported from a common amino-vicinal diol intermediate derived from tri-O-benzyl-d-glucal. Construction of the key pyrrolidine ring present in 1,4-dideoxy-1,4-imino-l-xylitol and (+)-anisomycin was a consequence of thermodynamically driven concomitant intramolecular nucleophilic addition reaction of the amino group to the resultant aldehyde obtained by oxidative cleavage of the amino-vicinal diol. Alternatively, double nucleophilic substitution on an amino-diol, after mesylation, with various amines delivered amino-substituted piperidine iminosugars in good yields.
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Affiliation(s)
- Vimal Kant Harit
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Namakkal G Ramesh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
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55
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Synthesis and Therapeutic Applications of Iminosugars in Cystic Fibrosis. Int J Mol Sci 2020; 21:ijms21093353. [PMID: 32397443 PMCID: PMC7247015 DOI: 10.3390/ijms21093353] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/06/2020] [Accepted: 05/06/2020] [Indexed: 12/13/2022] Open
Abstract
Iminosugars are sugar analogues endowed with a high pharmacological potential. The wide range of biological activities exhibited by these glycomimetics associated with their excellent drug profile make them attractive therapeutic candidates for several medical interventions. The ability of iminosugars to act as inhibitors or enhancers of carbohydrate-processing enzymes suggests their potential use as therapeutics for the treatment of cystic fibrosis (CF). Herein we review the most relevant advances in the field, paying attention to both the chemical synthesis of the iminosugars and their biological evaluations, resulting from in vitro and in vivo assays. Starting from the example of the marketed drug NBDNJ (N-butyl deoxynojirimycin), a variety of iminosugars have exhibited the capacity to rescue the trafficking of F508del-CFTR (deletion of F508 residue in the CF transmembrane conductance regulator), either alone or in combination with other correctors. Interesting results have also been obtained when iminosugars were considered as anti-inflammatory agents in CF lung disease. The data herein reported demonstrate that iminosugars hold considerable potential to be applied for both therapeutic purposes.
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56
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Franconetti A, López Ó, Fernandez-Bolanos JG. Carbohydrates: Potential Sweet Tools Against Cancer. Curr Med Chem 2020; 27:1206-1242. [DOI: 10.2174/0929867325666180719114150] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 04/25/2018] [Accepted: 06/28/2018] [Indexed: 12/13/2022]
Abstract
:Cancer, one of the most devastating degenerative diseases nowadays, is one of the main targets in Medicinal Chemistry and Pharmaceutical industry. Due to the significant increase in the incidence of cancer within world population, together with the complexity of such disease, featured with a multifactorial nature, access to new drugs targeting different biological targets connected to cancer is highly necessary.:Among the vast arsenal of compounds exhibiting antitumor activities, this review will cover the use of carbohydrate derivatives as privileged scaffolds. Their hydrophilic nature, together with their capacity of establishing selective interactions with biological receptors located on cell surface, involved in cell-to-cell communication processes, has allowed the development of an ample number of new templates useful in cancer treatment.:Their intrinsic water solubility has allowed their use as of pro-drug carriers for accessing more efficiently the pharmaceutical targets. The preparation of glycoconjugates in which the carbohydrate is tethered to a pharmacophore has also allowed a better permeation of the drug through cellular membranes, in which selective interactions with the carbohydrate motifs are involved. In this context, the design of multivalent structures (e.g. gold nanoparticles) has been demonstrated to enhance crucial interactions with biological receptors like lectins, glycoproteins that can be involved in cancer progression.:Moreover, the modification of the carbohydrate structural motif, by incorporation of metal complexes, or by replacing their endocyclic oxygen, or carbon atoms with heteroatoms has led to new antitumor agents.:Such diversity of sugar-based templates with relevant antitumor activity will be covered in this review.
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Affiliation(s)
- Antonio Franconetti
- Departamento de Quimica Organica, Facultad de Quimica, Universidad de Sevilla, Sevilla, Spain
| | - Óscar López
- Departamento de Quimica Organica, Facultad de Quimica, Universidad de Sevilla, Sevilla, Spain
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57
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Heravi MM, Zadsirjan V, Hamidi H, Daraie M, Momeni T. Recent applications of the Wittig reaction in alkaloid synthesis. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2020; 84:201-334. [PMID: 32416953 DOI: 10.1016/bs.alkal.2020.02.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The Wittig reaction is the chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide (the Wittig reagent) to afford an alkene and triphenylphosphine oxide. Noteworthy, this reaction results in the synthesis of alkenes in a selective and predictable fashion. Thus, it became as one of the keystone of synthetic organic chemistry, especially in the total synthesis of natural products, where the selectivity of a reaction is paramount of importance. A literature survey disclosed the existence of vast numbers of related reports and comprehensive reviews on the applications of this important name reaction in the total synthesis of natural products. However, the aim of this chapter is to underscore, the applications of the Wittig reaction in the total synthesis of one the most important and prevalent classes of natural products, the alkaloids, especially those showing important and diverse biological activities.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran.
| | - Vahideh Zadsirjan
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
| | - Hoda Hamidi
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
| | - Mansoureh Daraie
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
| | - Tayebeh Momeni
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
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58
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Awolade P, Cele N, Kerru N, Gummidi L, Oluwakemi E, Singh P. Therapeutic significance of β-glucuronidase activity and its inhibitors: A review. Eur J Med Chem 2020; 187:111921. [PMID: 31835168 PMCID: PMC7111419 DOI: 10.1016/j.ejmech.2019.111921] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 11/27/2019] [Accepted: 11/27/2019] [Indexed: 01/02/2023]
Abstract
The emergence of disease and dearth of effective pharmacological agents on most therapeutic fronts, constitutes a major threat to global public health and man's existence. Consequently, this has created an exigency in the search for new drugs with improved clinical utility or means of potentiating available ones. To this end, accumulating empirical evidence supports molecular target therapy as a plausible egress and, β-glucuronidase (βGLU) - a lysosomal acid hydrolase responsible for the catalytic deconjugation of β-d-glucuronides has emerged as a viable molecular target for several therapeutic applications. The enzyme's activity level in body fluids is also deemed a potential biomarker for the diagnosis of some pathological conditions. Moreover, due to its role in colon carcinogenesis and certain drug-induced dose-limiting toxicities, the development of potent inhibitors of βGLU in human intestinal microbiota has aroused increased attention over the years. Nevertheless, although our literature survey revealed both natural products and synthetic scaffolds as potential inhibitors of the enzyme, only few of these have found clinical utility, albeit with moderate to poor pharmacokinetic profile. Hence, in this review we present a compendium of exploits in the present millennium directed towards the inhibition of βGLU. The aim is to proffer a platform on which new scaffolds can be modelled for improved βGLU inhibitory potency and the development of new therapeutic agents in consequential.
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Affiliation(s)
- Paul Awolade
- School of Chemistry and Physics, University of KwaZulu-Natal, P/Bag X54001, Westville, Durban, South Africa
| | - Nosipho Cele
- School of Chemistry and Physics, University of KwaZulu-Natal, P/Bag X54001, Westville, Durban, South Africa
| | - Nagaraju Kerru
- School of Chemistry and Physics, University of KwaZulu-Natal, P/Bag X54001, Westville, Durban, South Africa
| | - Lalitha Gummidi
- School of Chemistry and Physics, University of KwaZulu-Natal, P/Bag X54001, Westville, Durban, South Africa
| | - Ebenezer Oluwakemi
- School of Chemistry and Physics, University of KwaZulu-Natal, P/Bag X54001, Westville, Durban, South Africa
| | - Parvesh Singh
- School of Chemistry and Physics, University of KwaZulu-Natal, P/Bag X54001, Westville, Durban, South Africa.
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59
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Yamamoto K, Kuriyama M, Onomura O. Anodic Oxidation for the Stereoselective Synthesis of Heterocycles. Acc Chem Res 2020; 53:105-120. [PMID: 31872753 DOI: 10.1021/acs.accounts.9b00513] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Stereodefined aliphatic heterocycles are one of the fundamental structural motifs observed in natural products and biologically active compounds. Various strategies for the synthesis of these building blocks based on transition metal catalysis, organocatalysis, and noncatalytic conditions have been developed. Although electrosynthesis has also been utilized for the functionalization of aliphatic heterocycles, stereoselective transformations under electrochemical conditions are still a challenging field in electroorganic chemistry. This Account consists of four main topics related to our recent efforts on the diastereo- and/or enantioselective synthesis of aliphatic heterocycles, especially N-heterocycles, using anodic oxidations as key steps. The first topic is the development of stereoselective synthetic methods for multisubstituted piperidines and pyrrolidines from anodically prepared α-methoxy cyclic amines. Our strategies were based primarily on N-acyliminium ion chemistry, and the key electrochemical transformations were diastereoselective anodic methoxylation, diastereoselective arylation, and anodic deallylative methoxylation. Furthermore, we found a unique property of the N-cyano protecting group that enabled the electrochemical α-methoxylation of α-substituted cyclic amines. The second topic of investigation is memory of chirality in electrochemical decarboxylative methoxylation. We observed that the electrochemical decarboxylative methoxylation of oxazolidine and thiazolidine derivatives with the appropriate N-protecting group occurred in a stereospecific manner even though the reaction proceeded through an sp2 planar carbon center. Our findings demonstrated the first example of memory of chirality in N-acyliminium ion chemistry. The third topic is the synthesis of chiral azabicyclo-N-oxyls and their application to chiral organocatalysis in the electrochemical oxidative kinetic resolution of secondary alcohols. The final topic is stereoselective transformations utilizing anodically generated halogen cations. We investigated the oxidative kinetic resolution of amino alcohol derivatives using anodically generated bromo cations. We also developed an intramolecular C-C bond formation of keto amides, a diastereoselective bromoiminolactonization of α-allyl malonamides, and an oxidative ring expansion reaction of allyl alcohols. It is noteworthy that most of the electrochemical reactions were performed in undivided cells under constant-current conditions, which avoided a complicated reaction setup and was beneficial for a large-scale reaction. In addition, we developed some enantioselective electrochemical transformations that are still challenges in electroorganic chemistry. We hope that our research will contribute to the further development of diastereo- and/or enantioselective transformations and the construction of valuable heterocyclic compounds using an electrochemical approach.
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Affiliation(s)
- Kosuke Yamamoto
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Masami Kuriyama
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Osamu Onomura
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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60
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Ueda A, Pi J, Makura Y, Tanaka M, Uenishi J. Stereoselective synthesis of (+)-5-thiosucrose and (+)-5-thioisosucrose. RSC Adv 2020; 10:9730-9735. [PMID: 35497214 PMCID: PMC9050154 DOI: 10.1039/d0ra01033b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 02/28/2020] [Indexed: 01/16/2023] Open
Abstract
(+)-5-Thiosucrose 1, a novel isosteric sulfur analog of sucrose, was synthesized stereoselectively for the first time via indirect β-d-fructofuranosidation involving selective β-d-psicofuranosidation, followed by stereo-inversion of the secondary hydroxy group at the C-3 position on the furanose ring. Glycosidation of protected 5-thio-d-glucose with a d-psicofuranosyl donor provided β-d-psicofuranosyl 5-thio-α-d-glucopyranoside and that with d-fructofuranosyl donor gave α-d-fructofuranosyl 5-thio-α-d-glucopyranoside. Two anomeric stereocenters of the glycosyl donor and acceptor were controlled correctly to provide a single disaccharide among four possible anomeric isomers in the glycosylation. Conversion of the resulting disaccharides afforded (+)-5-thiosucrose 1 and (+)-5-thioisosucrose 2 in excellent yields, respectively. Inhibitory activities of 1 and 2 against α-glucosidase in vitro were also examined. (+)-5-Thiosucrose and (+)-5-thioisosucrose were stereoselectively synthesized among four possible anomeric isomers using 5-thio-d-glucose as an α-directing glycosyl acceptor.![]()
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Affiliation(s)
- Atsushi Ueda
- Kyoto Pharmaceutical University, Misasagi, Yamashina, Kyoto 607-8412, Japan
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Jinhong Pi
- Kyoto Pharmaceutical University, Misasagi, Yamashina, Kyoto 607-8412, Japan
| | - Yui Makura
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Jun'ichi Uenishi
- Kyoto Pharmaceutical University, Misasagi, Yamashina, Kyoto 607-8412, Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
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61
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Nájera C, Foubelo F, Sansano JM, Yus M. Stereodivergent routes in organic synthesis: carbohydrates, amino acids, alkaloids and terpenes. Org Biomol Chem 2020; 18:1232-1278. [DOI: 10.1039/c9ob02419k] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The natural occurrence of enantiomers and diastereomers is often encountered.
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Affiliation(s)
- Carmen Nájera
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
| | - Francisco Foubelo
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
- Departamento de Química Orgánica
| | - José M. Sansano
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
- Departamento de Química Orgánica
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
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62
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A “turn off-on” fluorescent nanoprobe consisting of CuInS2 quantum dots for determination of the activity of β-glucosidase and for inhibitor screening. Mikrochim Acta 2019; 186:806. [DOI: 10.1007/s00604-019-3918-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 10/11/2019] [Indexed: 10/25/2022]
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63
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Synthesis of tricyclic benzimidazole-iminosugars as potential glycosidase inhibitors via a Mitsunobu reaction. Carbohydr Res 2019; 485:107807. [DOI: 10.1016/j.carres.2019.107807] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 01/04/2023]
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64
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Design, properties and applications of fluorinated and fluoroalkylated N-containing monosaccharides and their analogues. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2019.109364] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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65
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Montalvillo-Jiménez L, Santana AG, Corzana F, Jiménez-Osés G, Jiménez-Barbero J, Gómez AM, Asensio JL. Impact of Aromatic Stacking on Glycoside Reactivity: Balancing CH/π and Cation/π Interactions for the Stabilization of Glycosyl-Oxocarbenium Ions. J Am Chem Soc 2019; 141:13372-13384. [PMID: 31390207 DOI: 10.1021/jacs.9b03285] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Carbohydrate/aromatic stacking represents a recurring key motif for the molecular recognition of glycosides, either by protein binding domains, enzymes, or synthetic receptors. Interestingly, it has been proposed that aromatic residues might also assist in the formation/cleavage of glycosidic bonds by stabilizing positively charged oxocarbenium-like intermediates/transition states through cation/π interactions. While the significance of aromatic stacking on glycoside recognition is well stablished, its impact on the reactivity of glycosyl donors is yet to be explored. Herein, we report the first experimental study on this relevant topic. Our strategy is based on the design, synthesis, and reactivity evaluation of a large number of model systems, comprising a wide range of glycosidic donor/aromatic complexes. Different stacking geometries and dynamic features, anomeric leaving groups, sugar configurations, and reaction conditions have been explicitly considered. The obtained results underline the opposing influence exerted by van der Waals and Coulombic forces on the reactivity of the carbohydrate/aromatic complex: depending on the outcome of this balance, aromatic platforms can indeed exert a variety of effects, stretching from reaction inhibition all the way to rate enhancements. Although aromatic/glycosyl cation contacts are highly dynamic, the conclusions of our study suggest that aromatic assistance to glycosylation processes must indeed be feasible, with far reaching implications for enzyme engineering and organocatalysis.
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Affiliation(s)
| | - Andrés G Santana
- Instituto de Química Orgánica (IQOG-CSIC) , Juan de la Cierva 3 , 28006 Madrid , Spain
| | - Francisco Corzana
- Departamento Quı́mica and Centro de Investigación en Sı́ntesis Quı́mica , Universidad de La Rioja , 26006 Logroño , Spain
| | - Gonzalo Jiménez-Osés
- Center for Cooperative Research in Biosciences (CIC-bioGUNE) , 48160 Derio , Spain
| | - Jesús Jiménez-Barbero
- Center for Cooperative Research in Biosciences (CIC-bioGUNE) , 48160 Derio , Spain.,Basque Foundation for Science, Ikerbasque , 48013 Bilbo , Spain
| | - Ana M Gómez
- Instituto de Química Orgánica (IQOG-CSIC) , Juan de la Cierva 3 , 28006 Madrid , Spain
| | - Juan Luis Asensio
- Instituto de Química Orgánica (IQOG-CSIC) , Juan de la Cierva 3 , 28006 Madrid , Spain
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66
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Lumbroso A, Beaudet I, Quintard J, Fraisse C, Galland N, Toupet L, Le Grognec E. Sn−Li Transmetalation of α‐Aminoorganostannanes for the Stereoselective Synthesis of Substituted Dehydropiperidines and Dehydroazepanes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900349] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Isabelle Beaudet
- Université de Nantes, CNRS, CEISAM, UMR 6230 F-44000 Nantes France
| | | | - Cécile Fraisse
- Université de Nantes, CNRS, CEISAM, UMR 6230 F-44000 Nantes France
| | - Nicolas Galland
- Université de Nantes, CNRS, CEISAM, UMR 6230 F-44000 Nantes France
| | - Loïc Toupet
- Université de Rennes 1, CNRS UMR 6251Institut de Physique de Rennes Campus de Beaulieu 35042 Rennes France
| | - Erwan Le Grognec
- Université de Nantes, CNRS, CEISAM, UMR 6230 F-44000 Nantes France
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67
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Sun J, Kang Y, Gao L, Lu X, Ju H, Li X, Chen H. Synthesis of tricyclic quinazolinone-iminosugars as potential glycosidase inhibitors via a Mitsunobu reaction. Carbohydr Res 2019; 478:10-17. [PMID: 31039450 DOI: 10.1016/j.carres.2019.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 04/09/2019] [Accepted: 04/14/2019] [Indexed: 12/20/2022]
Abstract
A series of novel tricyclic quinazolinone-iminosugars 1 (a-c) were synthesized from the benzyl protected sugars through three steps. Firstly, the benzyl protected sugar (aldehyde) 5 reacted with o-aminobenzamide by the iodine-induced oxidative condensation to afford the corresponding aldo-quizanolinone 6. Secondly, through the intramolecular cyclization of the unprotected OH and the amide NH in 6, the tricyclic compounds 7 and 8 were constructed by the key Mitsunobu reaction. Finally, removal of the benzyl group gave the target tricyclic quinazolinone-iminosugars 1. The protocol was effective for the preparation of the tricyclic iminosugars in satisfactory yield. Interestingly, an unusual C-2 epimerization was observed with d-mannose and d-ribose compounds under the conditions of the Mitsunobu reaction that generated the products having the trans configuration at the C-2 and C-3 positions. Unfortunately, such tricyclic quinazolinone-iminosugars showed no inhibitory effects on the tested five glycosidases.
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Affiliation(s)
- Jiajing Sun
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Yaqing Kang
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Ligang Gao
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Xin Lu
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Huanhuan Ju
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Xiaoliu Li
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Hua Chen
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China.
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68
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Compain P. Multivalent Effect in Glycosidase Inhibition: The End of the Beginning. CHEM REC 2019; 20:10-22. [PMID: 30993894 DOI: 10.1002/tcr.201900004] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/15/2019] [Indexed: 12/21/2022]
Abstract
Glycosidases are ubiquitous enzymes involved in a diversity of key biological processes such as energy uptake or cell wall degradation. The design of specific glycosidase inhibitors has been therefore the subject of intense research efforts in academia and pharmaceutical industry. However, until recently, the study of the impact of multivalency on glycosidase inhibition was almost completely neglected. The following account will review our ten year journey on the design of multivalent glycomimetics within our research group, from the discovery of the first strong multivalent effect in glycosidase inhibition to the high-resolution crystal structures of Jack bean α-mannosidase in complex with the multimeric inhibitor displaying the largest binding enhancements reported so far.
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Affiliation(s)
- Philippe Compain
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), Univ. de Strasbourg, Univ. de Haute-Alsace, CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 Rue Becquerel, 67000, Strasbourg, France
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69
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Malatinský T, Otočková B, Dikošová L, Fischer R. A Convenient Synthetic Route towards 3,5‐Bis(hydroxymethyl)pyrrolizidines: Stereoselective Synthesis of Unnatural (–)‐Hyacinthacine B 2. ChemistrySelect 2019. [DOI: 10.1002/slct.201900529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Tomáš Malatinský
- Institute of Organic Chemistry, Catalysis and PetrochemistrySlovak University of Technology in Bratislava Radlinského 9 812 37 Bratislava Slovak Republic
| | - Barbora Otočková
- Institute of Organic Chemistry, Catalysis and PetrochemistrySlovak University of Technology in Bratislava Radlinského 9 812 37 Bratislava Slovak Republic
| | - Lívia Dikošová
- Institute of Organic Chemistry, Catalysis and PetrochemistrySlovak University of Technology in Bratislava Radlinského 9 812 37 Bratislava Slovak Republic
| | - Róbert Fischer
- Institute of Organic Chemistry, Catalysis and PetrochemistrySlovak University of Technology in Bratislava Radlinského 9 812 37 Bratislava Slovak Republic
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70
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Achary R, Kim HR, Lee HK. Stereoselective Synthesis of Highly Functionalized 5- and 6-Membered Aminocyclitols Starting with a Readily Available 2-Azetidinone. J Org Chem 2019; 84:4263-4272. [PMID: 30870595 DOI: 10.1021/acs.joc.9b00239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Stereoselective transformations of 4-vinyl-2-azetidinone derivative 4 into a variety of highly functionalized 6- and 5-membered carbocyclic compounds 7 and 9 were carried out using sequences involving sequential C1-N bond cleavage and Ru-catalyzed ring-closing metathesis. The derived carbocycles were further transformed into polyhydroxylated 6- and 5-membered aminocyclitols.
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Affiliation(s)
- Raghavendra Achary
- Korea Chemical Bank , Korea Research Institute of Chemical Technology , P.O. Box 107, Yuseong, Daejeon 305-600 , Korea
| | - Hyeong Rae Kim
- Korea Chemical Bank , Korea Research Institute of Chemical Technology , P.O. Box 107, Yuseong, Daejeon 305-600 , Korea.,Department of Medicinal Chemistry and Pharmacology , University of Science and Technology , 113 Gwahango , Yuseong, Daejeon 305-333 , Korea
| | - Hyeon-Kyu Lee
- Korea Chemical Bank , Korea Research Institute of Chemical Technology , P.O. Box 107, Yuseong, Daejeon 305-600 , Korea.,Department of Medicinal Chemistry and Pharmacology , University of Science and Technology , 113 Gwahango , Yuseong, Daejeon 305-333 , Korea
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71
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Wu ZY, Zhang H, Li QQ, Yang FQ, Li DQ. Capillary electrophoresis-based online immobilized enzyme reactor for beta-glucosidase kinetics assays and inhibitors screening. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1110-1111:67-73. [PMID: 30780013 DOI: 10.1016/j.jchromb.2019.02.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 02/01/2019] [Accepted: 02/02/2019] [Indexed: 12/14/2022]
Abstract
A capillary electrophoresis (CE)-based beta-glucosidase (beta-Glu) immobilized enzyme microreactor (IMER) was constructed for enzyme kinetics study and inhibitor screening with the aid of polydopamine coating. The enzyme kinetic and inhibition studies of beta-Glu were comprehensively evaluated using p-nitrophenyl beta-d-glucopyranoside as a model substrate and castanospermine as a model inhibitor. The Michaelis-Menten constant value of the immobilized beta-Glu in the developed IMER was calculated to be 2.79 mmol/L. The half-maximal inhibitory concentration and inhibition constant of castanospermine were 13.22 μg/mL and 1.54 μg/mL, respectively. In addition, after 50 consecutive runs, the IMER activity was remained at 89.5% of the initial immobilized beta-Glu activity, which showed that the constructed IMER has good stability and repeatability. Finally, the developed method was successfully applied to screen beta-Glu inhibitors from twelve flavonoids. Four flavonoids include genistein, baicalein, epicatechin gallate and epigallocatechin gallate had significant inhibitory effect on beta-Glu, and their binding mode with enzyme was further verified via the molecular docking analysis. In summary, the developed CE based beta-Glu-IMER is a reliable method for screening beta-Glu inhibitors from natural products.
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Affiliation(s)
- Zhao-Yu Wu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China
| | - Hao Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China
| | - Qiao-Qiao Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China.
| | - De-Qiang Li
- Department of Pharmacy, the Second Hospital of Hebei Medical University, Shijiazhuang, 050000, PR China.
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72
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Zajičková M, Moncoľ J, Šesták S, Kóňa J, Koóš M, Bella M. Synthesis of 4a-Carba- d-lyxofuranose Derivatives and Their Evaluation as Inhibitors of GH38 α-Mannosidases. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801586] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mária Zajičková
- Centre for Glycomics; Institute of Chemistry; Slovak Academy of Sciences; Dúbravská cesta 9 SK-845 38 Bratislava Slovakia
| | - Ján Moncoľ
- Department of Inorganic Chemistry; Institute of Chemistry; Faculty of Chemical and Food Technology; Radlinského 9 SK-812 37 Bratislava Slovakia
| | - Sergej Šesták
- Centre for Glycomics; Institute of Chemistry; Slovak Academy of Sciences; Dúbravská cesta 9 SK-845 38 Bratislava Slovakia
| | - Juraj Kóňa
- Centre for Glycomics; Institute of Chemistry; Slovak Academy of Sciences; Dúbravská cesta 9 SK-845 38 Bratislava Slovakia
| | - Miroslav Koóš
- Centre for Glycomics; Institute of Chemistry; Slovak Academy of Sciences; Dúbravská cesta 9 SK-845 38 Bratislava Slovakia
| | - Maroš Bella
- Centre for Glycomics; Institute of Chemistry; Slovak Academy of Sciences; Dúbravská cesta 9 SK-845 38 Bratislava Slovakia
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73
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Gonda J, Široký M, Martinková M, Homolya S, Vilková M, Pilátová MB, Šesták S. Synthesis and biological activity of diastereoisomeric octahydro-1H-indole-5,6,7-triols, analogues of castanospermine. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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74
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Santhanam V, Pant P, Jayaram B, Ramesh NG. Design, synthesis and glycosidase inhibition studies of novel triazole fused iminocyclitol-δ-lactams. Org Biomol Chem 2019; 17:1130-1140. [DOI: 10.1039/c8ob03084g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Synthesis of novel triazole fused iminocyclitol-δ-lactams, from tri-O-benzyl-d-glucal, involving intermolecular [3 + 2]cycloaddition and intramolecular lactamisation reactions as key steps is described.
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Affiliation(s)
- Venkatesan Santhanam
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi – 110016
- India
| | - Pradeep Pant
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi – 110016
- India
| | - B. Jayaram
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi – 110016
- India
| | - Namakkal G. Ramesh
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi – 110016
- India
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75
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Yu L, Somfai P. Enantioselective synthesis of anti-3-alkenyl-2-amido-3-hydroxy esters: application to the total synthesis of (+)-alexine. RSC Adv 2019; 9:2799-2802. [PMID: 35520501 PMCID: PMC9059938 DOI: 10.1039/c9ra00173e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 01/12/2019] [Indexed: 11/29/2022] Open
Abstract
A straightforward synthesis of anti-3-alkenyl-2-amido-3-hydroxy esters from the corresponding racemic α-amino-β-keto esters by using a ATH/DKR protocol has been developed. This method gives moderate to excellent yields with high chemo-, diastereo- and enantioselectivities for a broad range of substrates. In order to highlight the versatility of the methodology it was applied in an efficient asymmetric synthesis of the polyhydroxylated pyrrolizidine alkaloid (+)-alexine. A straightforward synthesis of anti-3-alkenyl-2-amido-3-hydroxy esters from the corresponding racemic α-amino-β-keto esters by using a ATH/DKR protocol has been developed.![]()
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Affiliation(s)
- Lu Yu
- Centre for Analysis and Synthesis
- Department of Chemistry
- Lund University
- Lund
- Sweden
| | - Peter Somfai
- Centre for Analysis and Synthesis
- Department of Chemistry
- Lund University
- Lund
- Sweden
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76
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N-Alkyl-1,5-dideoxy-1,5-imino-l-fucitols as fucosidase inhibitors: Synthesis, molecular modelling and activity against cancer cell lines. Bioorg Chem 2018; 84:418-433. [PMID: 30554081 DOI: 10.1016/j.bioorg.2018.12.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/23/2018] [Accepted: 12/03/2018] [Indexed: 12/22/2022]
Abstract
1,5-Dideoxy-1,5-imino-l-fucitol (1-deoxyfuconojirimycin, DFJ) is an iminosugar that inhibits fucosidases. Herein, N-alkyl DFJs have been synthesised and tested against the α-fucosidases of T. maritima (bacterial origin) and B. taurus (bovine origin). The N-alkyl derivatives were inactive against the bacterial fucosidase, while inhibiting the bovine enzyme. Docking of inhibitors to homology models, generated for the bovine and human fucosidases, was carried out. N-Decyl-DFJ was toxic to cancer cell lines and was more potent than the other N-alkyl DFJs studied.
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77
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Chennaiah A, Dahiya A, Dubbu S, Vankar YD. A Stereoselective Synthesis of an Imino Glycal: Application in the Synthesis of (-)-1-epi-Adenophorine and a Homoimindosugar. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801241] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ande Chennaiah
- Department of Chemistry; Indian Institute of Technology Kanpur; -208016 Kanpur India
| | - Amit Dahiya
- Department of Chemistry; Indian Institute of Technology Kanpur; -208016 Kanpur India
| | - Sateesh Dubbu
- Department of Chemistry; Indian Institute of Technology Kanpur; -208016 Kanpur India
| | - Yashwant D. Vankar
- Department of Chemistry; Indian Institute of Technology Kanpur; -208016 Kanpur India
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78
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Vögeli B, Rosenthal RG, Stoffel GMM, Wagner T, Kiefer P, Cortina NS, Shima S, Erb TJ. InhA, the enoyl-thioester reductase from Mycobacterium tuberculosis forms a covalent adduct during catalysis. J Biol Chem 2018; 293:17200-17207. [PMID: 30217823 PMCID: PMC6222099 DOI: 10.1074/jbc.ra118.005405] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/09/2018] [Indexed: 11/06/2022] Open
Abstract
The enoyl-thioester reductase InhA catalyzes an essential step in fatty acid biosynthesis of Mycobacterium tuberculosis and is a key target of antituberculosis drugs to combat multidrug-resistant M. tuberculosis strains. This has prompted intense interest in the mechanism and intermediates of the InhA reaction. Here, using enzyme mutagenesis, NMR, stopped-flow spectroscopy, and LC-MS, we found that the NADH cofactor and the CoA thioester substrate form a covalent adduct during the InhA catalytic cycle. We used the isolated adduct as a molecular probe to directly access the second half-reaction of the catalytic cycle of InhA (i.e. the proton transfer), independently of the first half-reaction (i.e. the initial hydride transfer) and to assign functions to two conserved active-site residues, Tyr-158 and Thr-196. We found that Tyr-158 is required for the stereospecificity of protonation and that Thr-196 is partially involved in hydride transfer and protonation. The natural tendency of InhA to form a covalent C2-ene adduct calls for a careful reconsideration of the enzyme's reaction mechanism. It also provides the basis for the development of effective tools to study, manipulate, and inhibit the catalytic cycle of InhA and related enzymes of the short-chain dehydrogenase/reductase (SDR) superfamily. In summary, our work has uncovered the formation of a covalent adduct during the InhA catalytic cycle and identified critical residues required for catalysis, providing further insights into the InhA reaction mechanism important for the development of antituberculosis drugs.
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Affiliation(s)
- Bastian Vögeli
- From the Departments of Biochemistry and Synthetic Metabolism and
| | | | | | - Tristan Wagner
- Microbial Protein Structure, Max-Planck-Institute for Terrestrial Microbiology, 35043 Marburg, Germany and
| | - Patrick Kiefer
- the Institute of Microbiology, ETH Zürich, 8093 Zürich, Switzerland
| | | | - Seigo Shima
- Microbial Protein Structure, Max-Planck-Institute for Terrestrial Microbiology, 35043 Marburg, Germany and
| | - Tobias J Erb
- From the Departments of Biochemistry and Synthetic Metabolism and
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79
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Bella M, Šesták S, Moncoľ J, Koóš M, Poláková M. Synthesis of 1,4-imino-L-lyxitols modified at C-5 and their evaluation as inhibitors of GH38 α-mannosidases. Beilstein J Org Chem 2018; 14:2156-2162. [PMID: 30202468 PMCID: PMC6122390 DOI: 10.3762/bjoc.14.189] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 07/24/2018] [Indexed: 01/01/2023] Open
Abstract
A synthetic approach to 1,4-imino-L-lyxitols with various modifications at the C-5 position is reported. These imino-L-lyxitol cores were used for the preparation of a series of N-(4-halobenzyl)polyhydroxypyrrolidines. An impact of the C-5 modification on the inhibition and selectivity against GH38 α-mannosidases from Drosophila melanogaster, the Golgi (GMIIb) and lysosomal (LManII) mannosidases and commercial jack bean α-mannosidase from Canavalia ensiformis was evaluated. The modification at C-5 affected their inhibitory activity against the target GMIIb enzyme. In contrast, no inhibition effect of the pyrrolidines against LManII was observed. The modification of the imino-L-lyxitol core is therefore a suitable motif for the design of inhibitors with desired selectivity against the target GMIIb enzyme.
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Affiliation(s)
- Maroš Bella
- Department of Glycochemistry, Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 38, Bratislava, Slovakia
| | - Sergej Šesták
- Department of Glycochemistry, Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 38, Bratislava, Slovakia
| | - Ján Moncoľ
- Department of Inorganic Chemistry, Faculty of Chemical and Food Technology, Radlinského 9, SK-812 37 Bratislava, Slovakia
| | - Miroslav Koóš
- Department of Glycochemistry, Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 38, Bratislava, Slovakia
| | - Monika Poláková
- Department of Glycochemistry, Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 38, Bratislava, Slovakia
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80
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Revealing the mechanism for covalent inhibition of glycoside hydrolases by carbasugars at an atomic level. Nat Commun 2018; 9:3243. [PMID: 30104598 PMCID: PMC6089974 DOI: 10.1038/s41467-018-05702-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 07/17/2018] [Indexed: 01/14/2023] Open
Abstract
Mechanism-based glycoside hydrolase inhibitors are carbohydrate analogs that mimic the natural substrate’s structure. Their covalent bond formation with the glycoside hydrolase makes these compounds excellent tools for chemical biology and potential drug candidates. Here we report the synthesis of cyclohexene-based α-galactopyranoside mimics and the kinetic and structural characterization of their inhibitory activity toward an α-galactosidase from Thermotoga maritima (TmGalA). By solving the structures of several enzyme-bound species during mechanism-based covalent inhibition of TmGalA, we show that the Michaelis complexes for intact inhibitor and product have half-chair (2H3) conformations for the cyclohexene fragment, while the covalently linked intermediate adopts a flattened half-chair (2H3) conformation. Hybrid QM/MM calculations confirm the structural and electronic properties of the enzyme-bound species and provide insight into key interactions in the enzyme-active site. These insights should stimulate the design of mechanism-based glycoside hydrolase inhibitors with tailored chemical properties. Mechanism-based inhibitors of glycoside hydrolases are useful probes for basic research and represent potential drug candidates. Here, the authors present a series of mechanism-based covalent α-galactosidase inhibitors and elucidate the kinetic and structural basis of their inhibitory activity.
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81
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Karakılıç E, Durmuş S, Sevmezler S, Şahin O, Baran A. Regio- and stereospecific synthesis of rac-carbasugar-based cyclohexane pentols; Investigations of their α- and β-glucosidase inhibitions. Bioorg Med Chem 2018; 26:4276-4287. [PMID: 30031655 DOI: 10.1016/j.bmc.2018.07.021] [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: 05/30/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 10/28/2022]
Abstract
In the present study, (3aR,7aS)-1,3,3a,4,7,7a-hexahydroisobenzofuran was submitted to photooxygenation and two isomeric hydroperoxides were successfully obtained. Without any further purification, reduction of the hydroperoxides with titanium tetraisopropoxide catalyzed by dimethyl sulfide gave two alcohol isomers in high yields. After acetylation of alcohol with Ac2O in pyridine, epoxidation reaction of formed monoacetates with m-CPBA, then chromatographed and followed by hydrolysis of the acetate groups with NH3 in CH3OH resulted in the formation of epoxy alcohol isomers respectively. These epoxy alcohol isomers were subjected to trans-dihydroxylation reaction with acid (H2SO4) in the presence of water to afford triols. Acetylation of the free hydroxyl groups produced benzofuran triacetates in high yields. Ring-opening reaction of furan triacetates with sulfamic acid catalyzed in the presence of acetic acid/acetic anhydrate and subsequently hydrolysis of the acetate groups with ammonia gave the targeted cyclohexane carbasugar-based pentols. All products were separated and purified by chromatographic and crystallographic methods. Structural analyses of all compounds were conducted by spectral techniques including NMR and X-ray analyses. The biological inhibition activity of the target compounds was tested against glycosidase enzymes, α- and β-glucosidase.
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Affiliation(s)
- Emel Karakılıç
- Department of Chemistry, Sakarya University, 54187 Sakarya, Turkey
| | - Sümeyye Durmuş
- Department of Chemistry, Sakarya University, 54187 Sakarya, Turkey
| | - Sedat Sevmezler
- Department of Chemistry, Sakarya University, 54187 Sakarya, Turkey
| | - Onur Şahin
- Application and Research Center, Sinop University, 57000 Sinop, Turkey
| | - Arif Baran
- Department of Chemistry, Sakarya University, 54187 Sakarya, Turkey.
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82
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Design, synthesis, and biological evaluation of new 1-aryl-4-(β-D-fructopyranos-3-O-yl)methyl-1H-1,2,3-triazole derivatives. Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2319-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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83
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Rocha JF, Freitas DS, Noro J, Silva Teixeira CS, Sousa CEA, Alves MJ, Cerqueira NMFSA. Total Stereoselective Michael Addition of N- and S- Nucleophiles to a d-Erythrosyl 1,5-Lactone Derivative. Experimental and Theoretical Studies Devoted to the Synthesis of 2,6-Dideoxy-4-functionalized-d- ribono-hexono-1,4-lactone. J Org Chem 2018; 83:8011-8019. [PMID: 29924603 DOI: 10.1021/acs.joc.8b00769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of a 1,5-lactone 2,4- O-alkylidene-d-erythrose derivative was found to be a highly stereoselective template in Michael addition trough the reaction of a d-erythrosyl 1,5-lactone derivative with nitrogen and sulfur nucleophiles. The sulfur adducts formed are 1 (d-erythrose derivative):1 (nucleophile), and the nitrogen adducts are 1:2. Both were then treated under HCl to give 2,6-dideoxy-4-functionalized-d- ribono-hexono-1,4-lactone by a reaction cascade in high overall yield. Reaction's scale up even improves the yield. The theoretical and computational results clearly explain the origin of the stereoselectivity, and the energetic course of reactions starting with nitrogen and sulfide nucleophiles. Considering that the 1,4-lactones obtained in this work offer a new molecular scaffold for organic synthesis, these new results provide a solid theoretical platform that can be used to speed up synthesis of other derivatives in a stereo- and regioselective way.
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Affiliation(s)
- Juliana F Rocha
- REQUIMTE/UCIBIO, Departamento de Química e Bioquímica, Faculdade de Ciências , Universidade do Porto , Rua do Campo Alegre s/n , 4169-007 Porto , Portugal
| | - David S Freitas
- Departamento de Química , Universidade do Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Jennifer Noro
- Departamento de Química , Universidade do Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Carla S Silva Teixeira
- REQUIMTE/UCIBIO, Departamento de Química e Bioquímica, Faculdade de Ciências , Universidade do Porto , Rua do Campo Alegre s/n , 4169-007 Porto , Portugal
| | - Cristina E A Sousa
- Departamento de Química , Universidade do Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Maria J Alves
- Departamento de Química , Universidade do Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Nuno M F S A Cerqueira
- REQUIMTE/UCIBIO, Departamento de Química e Bioquímica, Faculdade de Ciências , Universidade do Porto , Rua do Campo Alegre s/n , 4169-007 Porto , Portugal
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84
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Dubbu S, Vankar YD. Reaction of 1,2-Anhydrosugars with Arynes: An Approach to 1,2-Dihydrobenzofuran-Fused C
-Aryl Glycosides and C2-O
-Phenolic Glycals. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800705] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sateesh Dubbu
- Department of chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
| | - Yashwant D. Vankar
- Department of chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
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85
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Elías-Rodríguez P, Pingitore V, Carmona AT, Moreno-Vargas AJ, Ide D, Miyawaki S, Kato A, Álvarez E, Robina I. Discovery of a Potent α-Galactosidase Inhibitor by in Situ Analysis of a Library of Pyrrolizidine–(Thio)urea Hybrid Molecules Generated via Click Chemistry. J Org Chem 2018; 83:8863-8873. [DOI: 10.1021/acs.joc.8b01073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Pilar Elías-Rodríguez
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/Prof. García González, 1, 41012 Seville, Spain
| | - Valeria Pingitore
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/Prof. García González, 1, 41012 Seville, Spain
| | - Ana T. Carmona
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/Prof. García González, 1, 41012 Seville, Spain
| | - Antonio J. Moreno-Vargas
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/Prof. García González, 1, 41012 Seville, Spain
| | - Daisuke Ide
- Department of Hospital Pharmacy, University of Toyama, Toyama 930-0194, Japan
| | - Shota Miyawaki
- Department of Hospital Pharmacy, University of Toyama, Toyama 930-0194, Japan
| | - Atsushi Kato
- Department of Hospital Pharmacy, University of Toyama, Toyama 930-0194, Japan
| | - Eleuterio Álvarez
- Instituto de Investigaciones Químicas, C.S.I.C-Universidad de Sevilla, Américo Vespucio 49, 41092 Seville, Spain
| | - Inmaculada Robina
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, C/Prof. García González, 1, 41012 Seville, Spain
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86
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Howard E, Cousido‐Siah A, Lepage ML, Schneider JP, Bodlenner A, Mitschler A, Meli A, Izzo I, Alvarez HA, Podjarny A, Compain P. Structural Basis of Outstanding Multivalent Effects in Jack Bean α‐Mannosidase Inhibition. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Eduardo Howard
- Department of Integrative BiologyInstitut de Génétique et de Biologie Moléculaire et CellulaireCNRSINSERM, UdS 1 rue Laurent Fries 67404 Illkirch CEDEX France
- Instituto de Física de Líquidos y Sistemas BiológicosCONICET, UNLP Calle 59 No. 789 La Plata Argentina
| | - Alexandra Cousido‐Siah
- Department of Integrative BiologyInstitut de Génétique et de Biologie Moléculaire et CellulaireCNRSINSERM, UdS 1 rue Laurent Fries 67404 Illkirch CEDEX France
| | - Mathieu L. Lepage
- Laboratoire d'Innovation Moléculaire et ApplicationsUniversité de Strasbourg
- Université de Haute-Alsace
- CNRS
- LIMA (UMR 7042)Equipe de Synthèse Organique et Molécules Bioactives (SYBIO)ECPM 25 rue Becquerel 67000 Strasbourg France
| | - Jérémy P. Schneider
- Laboratoire d'Innovation Moléculaire et ApplicationsUniversité de Strasbourg
- Université de Haute-Alsace
- CNRS
- LIMA (UMR 7042)Equipe de Synthèse Organique et Molécules Bioactives (SYBIO)ECPM 25 rue Becquerel 67000 Strasbourg France
| | - Anne Bodlenner
- Laboratoire d'Innovation Moléculaire et ApplicationsUniversité de Strasbourg
- Université de Haute-Alsace
- CNRS
- LIMA (UMR 7042)Equipe de Synthèse Organique et Molécules Bioactives (SYBIO)ECPM 25 rue Becquerel 67000 Strasbourg France
| | - André Mitschler
- Department of Integrative BiologyInstitut de Génétique et de Biologie Moléculaire et CellulaireCNRSINSERM, UdS 1 rue Laurent Fries 67404 Illkirch CEDEX France
| | - Alessandra Meli
- Department of Chemistry and Biology “A. Zambelli”University of Salerno Via Giovanni Paolo II, 132 84084 Fisciano, Salerno Italy
| | - Irene Izzo
- Department of Chemistry and Biology “A. Zambelli”University of Salerno Via Giovanni Paolo II, 132 84084 Fisciano, Salerno Italy
| | - H. Ariel Alvarez
- Instituto de Física de Líquidos y Sistemas BiológicosCONICET, UNLP Calle 59 No. 789 La Plata Argentina
| | - Alberto Podjarny
- Department of Integrative BiologyInstitut de Génétique et de Biologie Moléculaire et CellulaireCNRSINSERM, UdS 1 rue Laurent Fries 67404 Illkirch CEDEX France
| | - Philippe Compain
- Laboratoire d'Innovation Moléculaire et ApplicationsUniversité de Strasbourg
- Université de Haute-Alsace
- CNRS
- LIMA (UMR 7042)Equipe de Synthèse Organique et Molécules Bioactives (SYBIO)ECPM 25 rue Becquerel 67000 Strasbourg France
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87
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Synthesis and glycosidase inhibition potency of all- trans substituted 1- C -perfluoroalkyl iminosugars. Carbohydr Res 2018; 464:2-7. [DOI: 10.1016/j.carres.2018.05.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/09/2018] [Accepted: 05/09/2018] [Indexed: 01/28/2023]
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88
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Malinowski M, Hensienne R, Kern N, Tardieu D, Bodlenner A, Hazelard D, Compain P. Stereocontrolled synthesis of polyhydroxylated bicyclic azetidines as a new class of iminosugars. Org Biomol Chem 2018; 16:4688-4700. [PMID: 29892731 DOI: 10.1039/c8ob01065j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We report herein the development of a stereodivergent route towards polyhydroxylated bicyclic azetidine scaffolds, namely 6-azabicyclo[3.2.0]heptane derivatives. The strategy hinges on a common bicyclic β-lactam precursor, which is forged by way of a rare example of a cationic Dieckmann-type reaction, followed by IBX-mediated desaturation. Substrate-controlled diastereoselective oxidations then allow the divergent preparation of novel iminosugar mimics.
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Affiliation(s)
- Maciej Malinowski
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), Univ. de Strasbourg
- Univ. de Haute-Alsace
- CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 Rue Becquerel, 67000 Strasbourg, France.
| | - Raphaël Hensienne
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), Univ. de Strasbourg
- Univ. de Haute-Alsace
- CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 Rue Becquerel, 67000 Strasbourg, France.
| | - Nicolas Kern
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), Univ. de Strasbourg
- Univ. de Haute-Alsace
- CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 Rue Becquerel, 67000 Strasbourg, France.
| | - Damien Tardieu
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), Univ. de Strasbourg
- Univ. de Haute-Alsace
- CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 Rue Becquerel, 67000 Strasbourg, France.
| | - Anne Bodlenner
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), Univ. de Strasbourg
- Univ. de Haute-Alsace
- CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 Rue Becquerel, 67000 Strasbourg, France.
| | - Damien Hazelard
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), Univ. de Strasbourg
- Univ. de Haute-Alsace
- CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 Rue Becquerel, 67000 Strasbourg, France.
| | - Philippe Compain
- Laboratoire d'Innovation Moléculaire et Applications (LIMA), Univ. de Strasbourg
- Univ. de Haute-Alsace
- CNRS (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 Rue Becquerel, 67000 Strasbourg, France.
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89
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Howard E, Cousido-Siah A, Lepage ML, Schneider JP, Bodlenner A, Mitschler A, Meli A, Izzo I, Alvarez HA, Podjarny A, Compain P. Structural Basis of Outstanding Multivalent Effects in Jack Bean α-Mannosidase Inhibition. Angew Chem Int Ed Engl 2018; 57:8002-8006. [PMID: 29722924 DOI: 10.1002/anie.201801202] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Indexed: 12/28/2022]
Abstract
Multivalent design of glycosidase inhibitors is a promising strategy for the treatment of diseases involving enzymatic hydrolysis of glycosidic bonds in carbohydrates. An essential prerequisite for successful applications is the atomic-level understanding of how outstanding binding enhancement occurs with multivalent inhibitors. Herein we report the first high-resolution crystal structures of the Jack bean α-mannosidase (JBα-man) in apo and inhibited states. The three-dimensional structure of JBα-man in complex with the multimeric cyclopeptoid-based inhibitor displaying the largest binding enhancements reported so far provides decisive insight into the molecular mechanisms underlying multivalent effects in glycosidase inhibition.
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Affiliation(s)
- Eduardo Howard
- Department of Integrative Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS, INSERM, UdS, 1 rue Laurent Fries, 67404, Illkirch CEDEX, France.,Instituto de Física de Líquidos y Sistemas Biológicos, CONICET, UNLP, Calle 59 No. 789, La Plata, Argentina
| | - Alexandra Cousido-Siah
- Department of Integrative Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS, INSERM, UdS, 1 rue Laurent Fries, 67404, Illkirch CEDEX, France
| | - Mathieu L Lepage
- Laboratoire d'Innovation Moléculaire et Applications, Université de Strasbourg
- , Université de Haute-Alsace
- , CNRS
- , LIMA (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 rue Becquerel, 67000, Strasbourg, France
| | - Jérémy P Schneider
- Laboratoire d'Innovation Moléculaire et Applications, Université de Strasbourg
- , Université de Haute-Alsace
- , CNRS
- , LIMA (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 rue Becquerel, 67000, Strasbourg, France
| | - Anne Bodlenner
- Laboratoire d'Innovation Moléculaire et Applications, Université de Strasbourg
- , Université de Haute-Alsace
- , CNRS
- , LIMA (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 rue Becquerel, 67000, Strasbourg, France
| | - André Mitschler
- Department of Integrative Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS, INSERM, UdS, 1 rue Laurent Fries, 67404, Illkirch CEDEX, France
| | - Alessandra Meli
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Salerno, Italy
| | - Irene Izzo
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Salerno, Italy
| | - H Ariel Alvarez
- Instituto de Física de Líquidos y Sistemas Biológicos, CONICET, UNLP, Calle 59 No. 789, La Plata, Argentina
| | - Alberto Podjarny
- Department of Integrative Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS, INSERM, UdS, 1 rue Laurent Fries, 67404, Illkirch CEDEX, France
| | - Philippe Compain
- Laboratoire d'Innovation Moléculaire et Applications, Université de Strasbourg
- , Université de Haute-Alsace
- , CNRS
- , LIMA (UMR 7042), Equipe de Synthèse Organique et Molécules Bioactives (SYBIO), ECPM, 25 rue Becquerel, 67000, Strasbourg, France
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90
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Schröder SP, Wu L, Artola M, Hansen T, Offen WA, Ferraz MJ, Li KY, Aerts JMFG, van der Marel GA, Codée JDC, Davies GJ, Overkleeft HS. Gluco-1 H-imidazole: A New Class of Azole-Type β-Glucosidase Inhibitor. J Am Chem Soc 2018; 140:5045-5048. [PMID: 29601200 PMCID: PMC5942873 DOI: 10.1021/jacs.8b02399] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Gluco-azoles competitively inhibit glucosidases by transition-state mimicry and their ability to interact with catalytic acid residues in glucosidase active sites. We noted that no azole-type inhibitors described, to date, possess a protic nitrogen characteristic for 1 H-imidazoles. Here, we present gluco-1 H-imidazole, a gluco-azole bearing a 1 H-imidazole fused to a glucopyranose-configured cyclitol core, and three close analogues as new glucosidase inhibitors. All compounds inhibit human retaining β-glucosidase, GBA1, with the most potent ones inhibiting this enzyme (deficient in Gaucher disease) on a par with glucoimidazole. None inhibit glucosylceramide synthase, cytosolic β-glucosidase GBA2 or α-glucosidase GAA. Structural, physical and computational studies provide first insights into the binding mode of this conceptually new class of retaining β-glucosidase inhibitors.
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Affiliation(s)
| | - Liang Wu
- Department of Chemistry, York Structural Biology Laboratory , University of York , Heslington, York YO10 5DD , United Kingdom
| | | | | | - Wendy A Offen
- Department of Chemistry, York Structural Biology Laboratory , University of York , Heslington, York YO10 5DD , United Kingdom
| | | | | | | | | | | | - Gideon J Davies
- Department of Chemistry, York Structural Biology Laboratory , University of York , Heslington, York YO10 5DD , United Kingdom
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91
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Meanwell M, Sutherland M, Britton R. Application of sequential proline-catalyzed α-chlorination and aldol reactions in the total synthesis of 1-deoxygalactonojirimycin. CAN J CHEM 2018. [DOI: 10.1139/cjc-2017-0318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A short enantioselective total synthesis of 1-deoxygalactonojirimycin (migalastat) has been achieved that does not rely on chiral pool starting materials or biocatalysis. Instead, this synthesis exploits a one-pot proline-catalyzed α-chlorination and aldol reaction of a commercially available aldehyde to assemble the entire carbon skeleton in a single step. The key role played by a nitrogen protecting group in the final epoxide opening reaction is highlighted as is the amenability to access structural analogues using this route.
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Affiliation(s)
- Michael Meanwell
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Mathew Sutherland
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Robert Britton
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
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92
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Bhuma N, Burade SS, Louat T, Herman J, Kawade S, Doshi PJ, Dhavale DD. Fluorinated piperidine iminosugars and their N -alkylated derivatives: Synthesis, conformational analysis, immunosuppressive and glycosidase inhibitory activity studies. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.12.059] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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93
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Nierengarten JF, Schneider JP, Trinh TMN, Joosten A, Holler M, Lepage ML, Bodlenner A, García-Moreno MI, Ortiz Mellet C, Compain P. Giant Glycosidase Inhibitors: First- and Second-Generation Fullerodendrimers with a Dense Iminosugar Shell. Chemistry 2018; 24:2483-2492. [DOI: 10.1002/chem.201705600] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Jean-François Nierengarten
- Laboratoire de Chimie des Matériaux Moléculaires; Université de Strasbourg et CNRS (UMR 7509); Ecole Européenne de Chimie, Polymères et Matériaux; 25 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Jérémy P. Schneider
- Laboratoire de Synthèse Organique et Molécules Bioactives; Université de Strasbourg et CNRS (UMR 7509); Ecole Européenne de Chimie, Polymères et Matériaux; 25 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Thi Minh Nguyet Trinh
- Laboratoire de Chimie des Matériaux Moléculaires; Université de Strasbourg et CNRS (UMR 7509); Ecole Européenne de Chimie, Polymères et Matériaux; 25 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Antoine Joosten
- Laboratoire de Synthèse Organique et Molécules Bioactives; Université de Strasbourg et CNRS (UMR 7509); Ecole Européenne de Chimie, Polymères et Matériaux; 25 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Michel Holler
- Laboratoire de Chimie des Matériaux Moléculaires; Université de Strasbourg et CNRS (UMR 7509); Ecole Européenne de Chimie, Polymères et Matériaux; 25 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Mathieu L. Lepage
- Laboratoire de Synthèse Organique et Molécules Bioactives; Université de Strasbourg et CNRS (UMR 7509); Ecole Européenne de Chimie, Polymères et Matériaux; 25 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Anne Bodlenner
- Laboratoire de Synthèse Organique et Molécules Bioactives; Université de Strasbourg et CNRS (UMR 7509); Ecole Européenne de Chimie, Polymères et Matériaux; 25 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - M. Isabel García-Moreno
- Departamento de Química Orgánica; Facultad de Química; Universidad de Sevilla; Profesor García González 1 41012 Sevilla Spain
| | - Carmen Ortiz Mellet
- Departamento de Química Orgánica; Facultad de Química; Universidad de Sevilla; Profesor García González 1 41012 Sevilla Spain
| | - Philippe Compain
- Laboratoire de Synthèse Organique et Molécules Bioactives; Université de Strasbourg et CNRS (UMR 7509); Ecole Européenne de Chimie, Polymères et Matériaux; 25 rue Becquerel 67087 Strasbourg Cedex 2 France
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94
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Salazar MO, Osella MI, Ramallo IA, Furlan RLE. Nα-arylsulfonyl histamines as selective β-glucosidase inhibitors. RSC Adv 2018; 8:36209-36218. [PMID: 35558478 PMCID: PMC9088825 DOI: 10.1039/c8ra06625f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/19/2018] [Indexed: 12/23/2022] Open
Abstract
Nα-benzenesulfonylhistamine, a new semi-synthetic β-glucosidase inhibitor, was obtained by bioactivity-guided isolation from a chemically engineered extract of Urtica urens L. prepared by reaction with benzenesulfonyl chloride. In order to identify better β-glucosidase inhibitors, a new series of Nα,Nτ-di-arylsulfonyl and Nα-arylsulfonyl histamine derivatives was prepared. Biological studies revealed that the β-glucosidase inhibition was in a micromolar range for several Nα-arylsulfonyl histamine compounds of the series, Nα-4-fluorobenzenesulfonyl histamine being the most powerful compound. Besides, this reversible and competitive inhibitor presented a good selectivity for β-glucosidase with respect to other target enzymes including α-glucosidase. A selective β-glucosidase inhibitor was discovered using the chemically engineered extracts approach.![]()
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Affiliation(s)
- M. O. Salazar
- Farmacognosia
- Departamento de Química Orgánica
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario S2002LRK
| | - M. I. Osella
- Farmacognosia
- Departamento de Química Orgánica
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario S2002LRK
| | - I. A. Ramallo
- Farmacognosia
- Departamento de Química Orgánica
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario S2002LRK
| | - R. L. E. Furlan
- Farmacognosia
- Departamento de Química Orgánica
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario S2002LRK
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95
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Ibrar A, Zaib S, Khan I, Shafique Z, Saeed A, Iqbal J. New prospects for the development of selective inhibitors of α -glucosidase based on coumarin-iminothiazolidinone hybrids: Synthesis, in-vitro biological screening and molecular docking analysis. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.09.041] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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96
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Cocaud C, Maujoin A, Zheng RB, Lowary TL, Rodrigues N, Percina N, Chartier A, Buron F, Routier S, Nicolas C, Martin OR. Triazole-Linked Iminosugars and Aromatic Systems as Simplified UDP-Galf
Mimics: Synthesis and Preliminary Evaluation as Galf
-Transferase Inhibitors. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701283] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Chloé Cocaud
- Institut de Chimie Organique et Analytique; UMR CNRS 7311; Université d'Orléans; Rue de Chartres, BP 6759 45067 Orléans CEDEX 2 France
| | - Audrey Maujoin
- Institut de Chimie Organique et Analytique; UMR CNRS 7311; Université d'Orléans; Rue de Chartres, BP 6759 45067 Orléans CEDEX 2 France
| | - Ruixiang B. Zheng
- Alberta Glycomics Centre and Department of Chemistry; University of Alberta; GunningLemieux Chemistry Centre; 11227 Saskatchewan Drive T6G 2G2 Edmonton, Alberta Canada
| | - Todd L. Lowary
- Alberta Glycomics Centre and Department of Chemistry; University of Alberta; GunningLemieux Chemistry Centre; 11227 Saskatchewan Drive T6G 2G2 Edmonton, Alberta Canada
| | - Nuno Rodrigues
- Institut de Chimie Organique et Analytique; UMR CNRS 7311; Université d'Orléans; Rue de Chartres, BP 6759 45067 Orléans CEDEX 2 France
| | - Nathalie Percina
- Institut de Chimie Organique et Analytique; UMR CNRS 7311; Université d'Orléans; Rue de Chartres, BP 6759 45067 Orléans CEDEX 2 France
| | - Agnes Chartier
- Institut de Chimie Organique et Analytique; UMR CNRS 7311; Université d'Orléans; Rue de Chartres, BP 6759 45067 Orléans CEDEX 2 France
| | - Frédéric Buron
- Institut de Chimie Organique et Analytique; UMR CNRS 7311; Université d'Orléans; Rue de Chartres, BP 6759 45067 Orléans CEDEX 2 France
| | - Sylvain Routier
- Institut de Chimie Organique et Analytique; UMR CNRS 7311; Université d'Orléans; Rue de Chartres, BP 6759 45067 Orléans CEDEX 2 France
| | - Cyril Nicolas
- Institut de Chimie Organique et Analytique; UMR CNRS 7311; Université d'Orléans; Rue de Chartres, BP 6759 45067 Orléans CEDEX 2 France
| | - Olivier R. Martin
- Institut de Chimie Organique et Analytique; UMR CNRS 7311; Université d'Orléans; Rue de Chartres, BP 6759 45067 Orléans CEDEX 2 France
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97
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Lindbäck E, Lopéz Ó, Tobiesen Å, Fernández-Bolaños JG, Sydnes MO. Sugar hydrazide imides: a new family of glycosidase inhibitors. Org Biomol Chem 2017; 15:8709-8712. [PMID: 29039854 DOI: 10.1039/c7ob01673e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The preparation of a novel type of iminosugar including a hydrazide imide moiety is described. The sugar hydrazide imides (3S,4S,5R,6R)-1-amino-3,4,5-trihydroxy-6-(hydroxymethyl)-2-iminopiperidine acetate and (3S,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)-2-imino-1-(methylamino)piperidine acetate presented here behave as inhibitors of α/β-glucosidases in the low micromolar concentration range. The former inhibitor displays a pH-dependent inhibition of β-glucosidase. The N-methylated counterpart behaves as an anomer-selective competitive micromolar inhibitor of α-glucosidase.
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Affiliation(s)
- Emil Lindbäck
- Faculty of Science and Technology, Department of Mathematics and Natural Science, University of Stavanger, NO-4036 Stavanger, Norway.
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98
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α-Geminal disubstituted pyrrolidine iminosugars and their C-4-fluoro analogues: Synthesis, glycosidase inhibition and molecular docking studies. Bioorg Med Chem 2017; 25:5148-5159. [DOI: 10.1016/j.bmc.2017.07.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/12/2017] [Accepted: 07/12/2017] [Indexed: 11/24/2022]
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99
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Dos Santos AM, Lima AH, Alves CN, Lameira J. Unraveling the Addition-Elimination Mechanism of EPSP Synthase through Computer Modeling. J Phys Chem B 2017; 121:8626-8637. [PMID: 28829128 DOI: 10.1021/acs.jpcb.7b05063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Enolpyruvyl transfer from phosphoenolpyruvate (PEP) to the hydroxyl group of shikimate-5-OH-3-phosphate (S3P) is catalyzed by 5-enolpyruvylshikimate 3-phosphate (EPSP) synthase in a reaction that involves breaking the C-O bond of PEP. Catalysis involves an addition-elimination mechanism with the formation of a tetrahedral intermediate (THI). Experiments have elucidated the mechanism of THI formation and breakdown. However, the catalytic action of EPSP synthase and the individual roles of catalytic residues Asp313 and Glu341 remains unclear. We have used a hybrid quantum mechanical/molecular mechanical (QM/MM) approach to explore the free energy surface in a reaction catalyzed by EPSP synthase. The Glu341 was the most favorable acid/base catalyst. Our results indicate that the protonation of PEP C3 precedes the nucleophilic attack on PEP C2 in the addition mechanism. Also, the breaking of the C-O bond of THI to form an EPSP cation intermediate must occur before proton transfer from PEP C3 to Glu341 in the elimination mechanism. Analysis of the FES supports cationic intermediate formation during the reaction catalyzed by EPSP synthase. Finally, the computational model indicates a proton transfer shift (Hammond shift) from Glu341 to C3 for an enzyme-based reaction with the shifted transition state, earlier than in the reference reaction in water.
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Affiliation(s)
- Alberto M Dos Santos
- Institute of Biological Sciences, Federal University of Pará , Belém, PA 66075-110, Brazil
| | - Anderson H Lima
- Institute of Biological Sciences, Federal University of Pará , Belém, PA 66075-110, Brazil
| | - Cláudio Nahum Alves
- Institute of Exact and Natural Sciences, Federal University of Pará , Belém, PA 66075-110, Brazil
| | - Jerônimo Lameira
- Institute of Biological Sciences, Federal University of Pará , Belém, PA 66075-110, Brazil
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100
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Prasad SS, Senthilkumar S, Srivastava A, Baskaran S. Iminosugar C-Nitromethyl Glycosides and Divergent Synthesis of Bicyclic Iminosugars. Org Lett 2017; 19:4403-4406. [DOI: 10.1021/acs.orglett.7b02175] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sure Siva Prasad
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | | | - Akriti Srivastava
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Sundarababu Baskaran
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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