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Liu K, Wang L, Guo Z. An extensive review of studies on mycobacterium cell wall polysaccharide-related oligosaccharides – part III: synthetic studies and biological applications of arabinofuranosyl oligosaccharides and their analogs, derivatives and conjugates. J Carbohydr Chem 2019. [DOI: 10.1080/07328303.2019.1630841] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kechun Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji′nan, Shandong, China
| | - Lizhen Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji′nan, Shandong, China
| | - Zhongwu Guo
- Department of Chemistry, University of Florida, Gainesville, FL, USA
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2
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Suthagar K, Fairbanks AJ. Synthesis and anti-mycobacterial activity of glycosyl sulfamides of arabinofuranose. Org Biomol Chem 2016; 14:1748-54. [DOI: 10.1039/c5ob02317c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series ofarabino N-glycosyl sulfamides, forced to adopt the furanose form by removal of the 5-hydroxyl group, were synthesised as putative isosteric mimics of decaprenolphosphoarabinose, the donor processed by arabinosyltransferases during mycobacterial cell wall assembly.
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Affiliation(s)
- Kajitha Suthagar
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
| | - Antony J. Fairbanks
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
- Biomolecular Interaction Centre
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3
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Suthagar K, Watson AJ, Wilkinson BL, Fairbanks AJ. Synthesis of arabinose glycosyl sulfamides as potential inhibitors of mycobacterial cell wall biosynthesis. Eur J Med Chem 2015; 102:153-66. [DOI: 10.1016/j.ejmech.2015.07.050] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 07/17/2015] [Accepted: 07/30/2015] [Indexed: 10/23/2022]
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4
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Complexation of two macrocycles for amide, saccharide, and halide derivatives: the capacity of 1,2,3-triazole as hydrogen and halogen bonding acceptors. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.10.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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5
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Saquib M, Husain I, Sharma S, Yadav G, Singh VK, Sharma SK, Shah P, Siddiqi MI, Kumar B, Lal J, Jain GK, Srivastava BS, Srivastava R, Shaw AK. 2,3-Dideoxy hex-2-enopyranosid-4-uloses as promising new anti-tubercular agents: Design, synthesis, biological evaluation and SAR studies. Eur J Med Chem 2011; 46:2217-23. [DOI: 10.1016/j.ejmech.2011.03.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Revised: 02/15/2011] [Accepted: 03/01/2011] [Indexed: 10/18/2022]
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6
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Ishiwata A, Ito Y. Synthesis of docosasaccharide arabinan motif of mycobacterial cell wall. J Am Chem Soc 2011; 133:2275-91. [PMID: 21287985 DOI: 10.1021/ja109932t] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Mycobacterial arabinan is a common constituent of both arabinogalactan (AG) and lipoarabinomannan (LAM). In this study, synthesis of β-Araf containing common arabinan docosasaccharide motif (22 Araf monomer units) of mycobacterial cell wall was achieved. Our synthetic strategy toward arabinan involves (1) the stereoselective β-arabinofuranosylation using both 3,5-O-TIPDS-protected and NAP-protected arabinofuranosyl donors for straightforward intermolecular glycosylation and intramolecular aglycon delivery (IAD), respectively, and (2) the convergent fragment coupling with branched fragments at the linear sequence using thioglycoside donor obtained from the corresponding acetonide at the reducing terminal of each fragment through a three-step procedure. Because the acetonide at the reducing terminal of all fragments would be converted to thioglycoside as the glycosyl donor, and mainly Bn ether protections were used, our strategy will be readily applicable to the synthesis of more complex arabinan, arabinogalactan, and arabinomycolate derived from mycobacterial CWS.
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Affiliation(s)
- Akihiro Ishiwata
- RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
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7
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Bouxin F, Marinkovic S, Le Bras J, Estrine B. Direct conversion of xylan into alkyl pentosides. Carbohydr Res 2010; 345:2469-73. [PMID: 20943216 DOI: 10.1016/j.carres.2010.09.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2010] [Revised: 09/01/2010] [Accepted: 09/02/2010] [Indexed: 10/19/2022]
Abstract
Xylan has been used as a raw material in the synthesis of butyl, octyl and decyl glycosides. Mixtures of D-xylose-, L-arabinose- and D-glucose-based surfactants were obtained under smooth conditions with high yields in a one-pot process. The surface activities of octyl and decyl glycosides thus obtained have been studied and compared with that of pure alkyl D-xylosides. The results have confirmed that the new synthetic approach described in this paper is a potentially economical and efficient method for the preparation of environmentally friendly surfactants.
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Affiliation(s)
- Florent Bouxin
- Agro-Industrie Recherches et Développement Green Chemistry Department, F-51110 POMACLE, France
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8
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Vijaya Raghava Reddy L, Venkat Reddy P, Mishra NN, Shukla PK, Yadav G, Srivastava R, Shaw AK. Synthesis and biological evaluation of glycal-derived novel tetrahydrofuran 1,2,3-triazoles by ‘click’ chemistry. Carbohydr Res 2010; 345:1515-21. [DOI: 10.1016/j.carres.2010.03.031] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Revised: 03/20/2010] [Accepted: 03/24/2010] [Indexed: 10/19/2022]
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9
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Umesiri FE, Sanki AK, Boucau J, Ronning DR, Sucheck SJ. Recent advances toward the inhibition of mAG and LAM synthesis in Mycobacterium tuberculosis. Med Res Rev 2010; 30:290-326. [DOI: 10.1002/med.20190] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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10
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Efficient one-pot syntheses of α-d-arabinofuranosyl tri- and tetrasaccharides present in cell wall polysaccharide of Mycobacterium tuberculosis. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.11.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Ayers B, Long H, Sim E, Smellie IA, Wilkinson BL, Fairbanks AJ. Stereoselective synthesis of β-arabino glycosyl sulfones as potential inhibitors of mycobacterial cell wall biosynthesis. Carbohydr Res 2009; 344:739-46. [DOI: 10.1016/j.carres.2009.02.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2008] [Revised: 01/16/2009] [Accepted: 02/03/2009] [Indexed: 11/27/2022]
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12
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Pathak AK, Pathak V, Suling WJ, Riordan JR, Gurcha SS, Besra GS, Reynolds RC. Synthesis of deoxygenated alpha(1-->5)-linked arabinofuranose disaccharides as substrates and inhibitors of arabinosyltransferases of Mycobacterium tuberculosis. Bioorg Med Chem 2009; 17:872-81. [PMID: 19056279 PMCID: PMC2707774 DOI: 10.1016/j.bmc.2008.11.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Revised: 11/10/2008] [Accepted: 11/12/2008] [Indexed: 10/21/2022]
Abstract
Arabinosyltransferases (AraTs) play a critical role in mycobacterial cell wall biosynthesis and are potential drug targets for the treatment of tuberculosis, especially multi-drug resistant forms of M. tuberculosis (MTB). Herein, we report the synthesis and acceptor/inhibitory activity of Araf alpha(1-->5) Araf disaccharides possessing deoxygenation at the reducing sugar of the disaccharide. Deoxygenation at either the C-2 or C-3 position of Araf was achieved via a free radical procedure using xanthate derivatives of the hydroxyl group. The alpha(1-->5)-linked disaccharides were produced by coupling n-octyl alpha-Araf 2-/3-deoxy, 2-fluoro glycosyl acceptors with an Araf thioglycosyl donor. The target disaccharides were tested in a cell free mycobacterial AraTs assay as well as an in vitro assay against MTB H(37)Ra and M. avium complex strains.
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Affiliation(s)
- Ashish K. Pathak
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
| | - Vibha Pathak
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
| | - William J. Suling
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
| | - James R. Riordan
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
| | - Sudagar S. Gurcha
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Gurdyal S. Besra
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Robert C. Reynolds
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
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13
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Wilkinson BL, Long H, Sim E, Fairbanks AJ. Synthesis of Arabino glycosyl triazoles as potential inhibitors of mycobacterial cell wall biosynthesis. Bioorg Med Chem Lett 2008; 18:6265-7. [DOI: 10.1016/j.bmcl.2008.09.082] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2008] [Revised: 09/22/2008] [Accepted: 09/23/2008] [Indexed: 10/21/2022]
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14
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Constable EC, Housecroft CE, Mahmood A. New chiral oligopyridines—4,4′-bis(disaccharide)-functionalised 2,2′-bipyridines and 4′-(disaccharide)-functionalised 2,2′:6′,2′′-terpyridines. Carbohydr Res 2008; 343:2567-75. [DOI: 10.1016/j.carres.2008.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2007] [Revised: 07/16/2008] [Accepted: 08/02/2008] [Indexed: 12/01/2022]
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15
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Wolucka BA. Biosynthesis of D-arabinose in mycobacteria - a novel bacterial pathway with implications for antimycobacterial therapy. FEBS J 2008; 275:2691-711. [PMID: 18422659 DOI: 10.1111/j.1742-4658.2008.06395.x] [Citation(s) in RCA: 130] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Decaprenyl-phospho-arabinose (beta-D-arabinofuranosyl-1-O-monophosphodecaprenol), the only known donor of d-arabinose in bacteria, and its precursor, decaprenyl-phospho-ribose (beta-D-ribofuranosyl-1-O-monophosphodecaprenol), were first described in 1992. En route to D-arabinofuranose, the decaprenyl-phospho-ribose 2'-epimerase converts decaprenyl-phospho-ribose to decaprenyl-phospho-arabinose, which is a substrate for arabinosyltransferases in the synthesis of the cell-wall arabinogalactan and lipoarabinomannan polysaccharides of mycobacteria. The first step of the proposed decaprenyl-phospho-arabinose biosynthesis pathway in Mycobacterium tuberculosis and related actinobacteria is the formation of D-ribose 5-phosphate from sedoheptulose 7-phosphate, catalysed by the Rv1449 transketolase, and/or the isomerization of d-ribulose 5-phosphate, catalysed by the Rv2465 d-ribose 5-phosphate isomerase. d-Ribose 5-phosphate is a substrate for the Rv1017 phosphoribosyl pyrophosphate synthetase which forms 5-phosphoribosyl 1-pyrophosphate (PRPP). The activated 5-phosphoribofuranosyl residue of PRPP is transferred by the Rv3806 5-phosphoribosyltransferase to decaprenyl phosphate, thus forming 5'-phosphoribosyl-monophospho-decaprenol. The dephosphorylation of 5'-phosphoribosyl-monophospho-decaprenol to decaprenyl-phospho-ribose by the putative Rv3807 phospholipid phosphatase is the committed step of the pathway. A subsequent 2'-epimerization of decaprenyl-phospho-ribose by the heteromeric Rv3790/Rv3791 2'-epimerase leads to the formation of the decaprenyl-phospho-arabinose precursor for the synthesis of the cell-wall arabinans in Actinomycetales. The mycobacterial 2'-epimerase Rv3790 subunit is similar to the fungal D-arabinono-1,4-lactone oxidase, the last enzyme in the biosynthesis of D-erythroascorbic acid, thus pointing to an evolutionary link between the D-arabinofuranose- and L-ascorbic acid-related pathways. Decaprenyl-phospho-arabinose has been a lead compound for the chemical synthesis of substrates for mycobacterial arabinosyltransferases and of new inhibitors and potential antituberculosis drugs. The peculiar (omega,mono-E,octa-Z) configuration of decaprenol has yielded insights into lipid biosynthesis, and has led to the identification of the novel Z-polyprenyl diphosphate synthases of mycobacteria. Mass spectrometric methods were developed for the analysis of anomeric linkages and of dolichol phosphate-related lipids. In the field of immunology, the renaissance in mycobacterial polyisoprenoid research has led to the identification of mimetic mannosyl-beta-1-phosphomycoketides of pathogenic mycobacteria as potent lipid antigens presented by CD1c proteins to human T cells.
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Affiliation(s)
- Beata A Wolucka
- Laboratory of Mycobacterial Biochemistry, Institute of Public Health, Brussels, Belgium.
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16
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Appelmelk BJ, den Dunnen J, Driessen NN, Ummels R, Pak M, Nigou J, Larrouy-Maumus G, Gurcha SS, Movahedzadeh F, Geurtsen J, Brown EJ, Eysink Smeets MM, Besra GS, Willemsen PTJ, Lowary TL, van Kooyk Y, Maaskant JJ, Stoker NG, van der Ley P, Puzo G, Vandenbroucke-Grauls CMJE, Wieland CW, van der Poll T, Geijtenbeek TBH, van der Sar AM, Bitter W. The mannose cap of mycobacterial lipoarabinomannan does not dominate the Mycobacterium–host interaction. Cell Microbiol 2008; 10:930-44. [DOI: 10.1111/j.1462-5822.2007.01097.x] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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17
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Pathak AK, Pathak V, Seitz L, Gurcha SS, Besra GS, Riordan JM, Reynolds RC. Disaccharide analogs as probes for glycosyltransferases in Mycobacterium tuberculosis. Bioorg Med Chem 2007; 15:5629-50. [PMID: 17544276 PMCID: PMC2699567 DOI: 10.1016/j.bmc.2007.04.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2007] [Revised: 04/02/2007] [Accepted: 04/04/2007] [Indexed: 11/25/2022]
Abstract
Glycosyltransferases (GTs) play a crucial role in mycobacterial cell wall biosynthesis and are necessary for the survival of mycobacteria. Hence, these enzymes are potential new drug targets for the treatment of tuberculosis (TB), especially multiple drug-resistant TB (MDR-TB). Herein, we report the efficient syntheses of Araf(alpha 1-->5)Araf, Galf(beta 1-->5)Galf, and Galf(beta 1-->6)Galf disaccharides possessing a 5-N,N-dimethylaminonaphthalene-1-sulfonamidoethyl (dansyl) unit that were prepared as fluorescent disaccharide acceptors for arabinosyl- and galactosyl-transferases, respectively. Such analogs may offer advantages relative to radiolabeled acceptors or donors for studying the enzymes and for assay development and compound screening. Additionally, analogs possessing a 5-azidonaphthalene-1-sulfonamidoethyl unit were prepared as photoaffinity probes for their potential utility in studying active site labeling of the GTs (arabinosyl and galactosyl) in Mycobacterium tuberculosis (MTB). Beyond their preparation, initial biological testing and kinetic analysis of these disaccharides as acceptors toward glycosyltransferases are also presented.
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Affiliation(s)
- Ashish K. Pathak
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
| | - Vibha Pathak
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
| | - Lainne Seitz
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
| | - Sudagar S. Gurcha
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Gurdyal S. Besra
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - James M. Riordan
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
| | - Robert C. Reynolds
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
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18
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Pathak AK, Pathak V, Riordan JR, Suling WJ, Gurcha SS, Besra GS, Reynolds RC. Synthesis of symmetrical C- and pseudo-symmetrical O-linked disaccharide analogs for arabinosyltransferase inhibitory activity in Mycobacterium tuberculosis. Bioorg Med Chem Lett 2007; 17:4527-30. [PMID: 17566735 PMCID: PMC2699574 DOI: 10.1016/j.bmcl.2007.05.099] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2007] [Revised: 05/23/2007] [Accepted: 05/30/2007] [Indexed: 11/26/2022]
Abstract
Herein we report the synthesis of symmetrical C-linked and pseudo-symmetrical O-linked disaccharides structurally related to Araf motifs present in the cell wall of MTB. Their activity in a competition-based arabinosyltransferase assay using [14C]-DPA as the glycosyl donor is also presented. In addition, in vitro inhibitory activity for the disaccharides was determined in a colorimetric broth microdilution assay system against MTB H37Ra and Mycobacterium avium.
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Affiliation(s)
| | - Vibha Pathak
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
| | - James R. Riordan
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
| | - William J. Suling
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
| | - Sudagar S. Gurcha
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Gurdyal S. Besra
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Robert C. Reynolds
- Drug Discovery Division, Southern Research Institute, P.O. Box 55305, Birmingham, AL 35255, USA
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19
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Barry CE, Crick DC, McNeil MR. Targeting the formation of the cell wall core of M. tuberculosis. Infect Disord Drug Targets 2007; 7:182-202. [PMID: 17970228 PMCID: PMC4747060 DOI: 10.2174/187152607781001808] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Mycobacteria have a unique cell wall, which is rich in drug targets. The cell wall core consists of a peptidoglycan layer, a mycolic acid layer, and an arabinogalactan polysaccharide connecting them. The detailed structure of the cell wall core is largely, although not completely, understood and will be presented. The biosynthetic pathways of all three components reveal significant drug targets that are the basis of present drugs and/or have potential for new drugs. These pathways will be reviewed and include enzymes involved in polyisoprene biosynthesis, soluble arabinogalactan precursor production, arabinogalactan polymerization, fatty acid synthesis, mycolate maturation, and soluble peptidoglycan precursor formation. Information relevant to targeting all these enzymes will be presented in tabular form. Selected enzymes will then be discussed in more detail. It is thus hoped this chapter will aid in the selection of targets for new drugs to combat tuberculosis.
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Affiliation(s)
- Clifton E. Barry
- Tuberculosis Research Section, Laboratory of Host Defense, NIAID, NIH, Twinbrook 2, Room 239, 12441 Parklawn Drive, Rockville, MD 20852
| | - Dean C. Crick
- Mycobacterial Research Laboratories, Dept. of Microbiology, Immunology, and Pathology, 1682 Campus Delivery, Colorado State University, Fort Collins, CO 80523-1682
| | - Michael R. McNeil
- Mycobacterial Research Laboratories, Dept. of Microbiology, Immunology, and Pathology, 1682 Campus Delivery, Colorado State University, Fort Collins, CO 80523-1682
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20
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Darwish OS, Callam CS, Hadad CM, Lowary TL. Regioselectivity in Alkylation Reactions of 1,2‐O‐Stannylene Acetals of d‐Arabinofuranose. J Carbohydr Chem 2007. [DOI: 10.1081/car-120026604] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Omar S. Darwish
- a Department of Chemistry , The Ohio State University , 100 West 18th Ave., Columbus, Ohio, 43210, USA
| | - Christopher S. Callam
- a Department of Chemistry , The Ohio State University , 100 West 18th Ave., Columbus, Ohio, 43210, USA
| | - Christopher M. Hadad
- a Department of Chemistry , The Ohio State University , 100 West 18th Ave., Columbus, Ohio, 43210, USA
| | - Todd L. Lowary
- a Department of Chemistry , The Ohio State University , 100 West 18th Ave., Columbus, Ohio, 43210, USA
- b Department of Chemistry and Alberta Ingenuity Centre for Carbohydrate Science , The University of Alberta , Gunning‐Lemieux Chemistry Centre, Edmonton, Alberta, T6G 2G2, Canada
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21
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Molecular receptors for monosaccharides: di(pyridyl)naphthyridine and di(quinolyl)naphthyridine. Tetrahedron 2006. [DOI: 10.1016/j.tet.2005.11.048] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Tripathi RP, Tiwari VK, Tewari N, Katiyar D, Saxena N, Sinha S, Gaikwad A, Srivastava A, Chaturvedi V, Manju YK, Srivastava R, Srivastava BS. Synthesis and antitubercular activities of bis-glycosylated diamino alcohols. Bioorg Med Chem 2005; 13:5668-79. [PMID: 15955703 DOI: 10.1016/j.bmc.2005.05.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2005] [Revised: 05/13/2005] [Accepted: 05/13/2005] [Indexed: 11/26/2022]
Abstract
Conjugate addition of diamines to glycosyl olefinic esters 1a and 1b followed by reduction of resulting bis-glycosyl beta-amino esters (2-7 and 14-19) with lithium aluminium hydride led to the respective glycosyl amino alcohols (8-13 and 20-25) in moderate to good yields. All the compounds were evaluated for antitubercular activity against Mycobacterium tuberculosis H(37)Ra and H(37)Rv. Few of the compounds exhibited antitubercular activity with MIC as low as 6.25-3.12microg/mL in virulent and avirulent strains. Compound 13 was found to be active against MDR strain and showed mild protection in mice.
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Affiliation(s)
- R P Tripathi
- Division of Medicinal and Process Chemistry, Central Drug Research Institute, Lucknow 226001, India.
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23
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Cociorva OM, Gurcha SS, Besra GS, Lowary TL. Oligosaccharides as inhibitors of mycobacterial arabinosyltransferases. Di- and trisaccharides containing C-3 modified arabinofuranosyl residues. Bioorg Med Chem 2005; 13:1369-79. [PMID: 15670944 DOI: 10.1016/j.bmc.2004.11.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2004] [Revised: 10/29/2004] [Accepted: 11/04/2004] [Indexed: 11/20/2022]
Abstract
The assembly of the arabinan portions of cell wall polysaccharides in mycobacteria involves a family of arabinosyltransferases (AraT's) that promote the polymerization of decaprenolphosphoarabinose. Mycobacterial viability depends upon the ability of the organism to synthesize an intact arabinan and thus compounds that inhibit these AraT's are both useful biochemical tools as well as potential lead compounds for new anti-tuberculosis agents. We describe here the preparation of oligosaccharide fragments of mycobacterial arabinan that contain arabinofuranosyl residues modified at C-3 by the replacement of the hydroxyl group with an amino, azido or methoxy functionality. Subsequent testing of these oligosaccharides as inhibitors of mycobacterial AraT's revealed that all inhibited the enzymes, but to varying degrees. In further studies, each compound was shown to have only low activity as an inhibitor of mycobacterial growth.
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Affiliation(s)
- Oana M Cociorva
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA
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Gupta MK, Sagar R, Shaw AK, Prabhakar YS. CP-MLR directed QSAR studies on the antimycobacterial activity of functionalized alkenols—topological descriptors in modeling the activity. Bioorg Med Chem 2005; 13:343-51. [PMID: 15598557 DOI: 10.1016/j.bmc.2004.10.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2004] [Revised: 08/18/2004] [Accepted: 10/09/2004] [Indexed: 11/19/2022]
Abstract
The antimycobacterial activity of nitro/acetamido alkenol derivatives and chloro/amino alkenol derivatives has been analyzed through combinatorial protocol in multiple linear regression (CP-MLR) using different topological descriptors obtained from Dragon software. Among the topological descriptor classes considered in the study, the activity is correlated with simple topological descriptors (TOPO) and more complex 2D autocorrelation descriptors (2DAUTO). In model building the descriptors from other classes, that is, empirical, constitutional, molecular walk counts, modified Burden eigenvalues, and Galvez topological charge indices have made secondary contribution in association with TOPO and/or 2DAUTO classes. The structure-activity correlations obtained with the TOPO descriptors suggest that less branched and saturated structural templates would be better for the activity. For both the series of compounds, in 2DAUTO the activity has been correlated to the descriptors having mass, volume and/or polarizability as weighting component. In these two series of compounds, however, the regression coefficients of the descriptors have opposite arithmetic signs with respect to one another. Outwardly these two series of compounds appear very similar. But in terms of activity they belong to different segments of descriptor-activity profiles. This difference in the activity of these two series of compounds may be mainly due to the spacing difference between the C1 (also C6) substituents and rest of the functional groups in them.
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Affiliation(s)
- Manish K Gupta
- Division of Medicinal and Process Chemistry, Central Drug Research Institute, Lucknow 226 001(UP), India
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25
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Chen YQ, Wang XZ, Shao XB, Hou JL, Chen XZ, Jiang XK, Li ZT. Hydrogen bonding-mediated self-assembly of rigid and planar metallocyclophanes and their recognition for mono- and disaccharides. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.08.099] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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26
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Cociorva OM, Lowary TL. Synthesis of oligosaccharides as potential inhibitors of mycobacterial arabinosyltransferases. Di- and trisaccharides containing C-5 modified arabinofuranosyl residues. Carbohydr Res 2004; 339:853-65. [PMID: 14980829 DOI: 10.1016/j.carres.2003.12.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2003] [Accepted: 12/16/2003] [Indexed: 11/17/2022]
Abstract
The synthesis of a panel of oligosaccharides containing C-5 arabinofuranosyl residues (9-20) is described. These compounds are of interest as potential inhibitors of the alpha-(1-->5)-arabinosyltransferase involved in the assembly of mycobacterial cell-wall arabinan. In the series of compounds prepared, the 5-OH group on the nonreducing residue(s) is replaced, independently, with an amino, azido, fluoro, or methoxy functionality. The synthesis of the target compounds involved the preparation of a series of C-5 modified arabinofuranosyl thioglycosides (24-26) and their subsequent coupling to the appropriate acceptor species (21-23). Deprotection of the glycosylation products afforded the azido, fluoro, or methoxy analogs directly. The amino derivatives were obtained in one additional step by reduction of the azido compounds.
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Affiliation(s)
- Oana M Cociorva
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA
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27
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Pathak AK, Pathak V, Riordan JM, Gurcha SS, Besra GS, Reynolds RC. Synthesis of mannopyranose disaccharides as photoaffinity probes for mannosyltransferases in Mycobacterium tuberculosis. Carbohydr Res 2004; 339:683-91. [PMID: 15013406 DOI: 10.1016/j.carres.2003.10.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2003] [Accepted: 10/30/2003] [Indexed: 11/21/2022]
Abstract
Mannosyltransferases play a crucial role in mycobacterial cell-wall biosynthesis and are potential new drug targets for the treatment of tuberculosis. Herein, we describe the synthesis of alpha-(1-->2)- and alpha-(1-->6)-linked mannopyranosyl disaccharides possessing a 5-azidonaphthlene-1-sulfonamidoethyl group as photoaffinity probes for active-site labeling studies of mannosyltransferases in Mycobacterium tuberculosis.
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Affiliation(s)
- Ashish K Pathak
- Drug Discovery Division, Southern Research Institute, PO Box 55305, Birmingham, AL 35225-5305, USA
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28
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Cociorva OM, Lowary TL. 2,3-Anhydrosugars in glycoside bond synthesis. Application to the preparation of C-2 functionalized α-d-arabinofuranosides. Tetrahedron 2004. [DOI: 10.1016/j.tet.2003.12.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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29
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30
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Wen X, Crick DC, Brennan PJ, Hultin PG. Analogues of the mycobacterial arabinogalactan linkage disaccharide as cell wall biosynthesis inhibitors. Bioorg Med Chem 2003; 11:3579-87. [PMID: 12901902 DOI: 10.1016/s0968-0896(03)00366-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The mycobacterial arabinogalactan linkage disaccharide [alpha-L-Rha-(1-->3)-alpha-D-GlcNAc] provides a basis for the design of new antitubercular drugs, since it supports a key skeletal structure in the bacterial cell wall. A series of analogues of the linker was synthesized by coupling appropriate thiorhamnosyl donors modified at their 4-positions, with an N-acetyl glucosamine acceptor. In a cell-free enzyme inhibition assay, three analogues inhibited the activity of the galactosyltransferase that adds a Galf residue to the linkage disaccharide. Although the compounds were modest inhibitors, these data confirm the viability of this approach to anti-mycobacterial agents. It is especially significant that the three effective compounds are modified at the site of the acceptor atom in the natural substrate.
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Affiliation(s)
- Xianghui Wen
- Department of Chemistry, University of Manitoba, R3T 2N2, Winnipeg, MB, Canada
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31
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Han J, Gadikota RR, McCarren PR, Lowary TL. Synthesis of octyl arabinofuranosides as substrates for mycobacterial arabinosyltransferases. Carbohydr Res 2003; 338:581-8. [PMID: 12644370 DOI: 10.1016/s0008-6215(02)00541-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A panel of octyl oligosaccharides comprised of arabinofuranose rings have been synthesized via efficient and readily scaleable routes. The key glycosylation reactions involved the coupling of octyl glycoside acceptors with the appropriate thioglycosides using N-iodosuccinimide and silver triflate activation. These syntheses were undertaken to provide substrates suitable for use in assays of mycobacterial arabinosyltransferases.
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Affiliation(s)
- Jeongseok Han
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, 43210, Columbus, OH, USA
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32
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Pathak AK, Pathak V, Gurcha SS, Besra GS, Reynolds RC. Synthesis of an arabinofuranosyl disaccharide photoaffinity probe for arabinosyltransferase activity in Mycobacterium tuberculosis. Bioorg Med Chem Lett 2002; 12:2749-52. [PMID: 12217368 DOI: 10.1016/s0960-894x(02)00536-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
(5-Azidonaphthalene-1-sulfonamidoethyl)-5-O-(alpha-arabinofuranosyl)-alpha-D-arabinofuranoside 1 was synthesized as a photoaffinity probe for the determination of arabinosyl transferase activity and for the identification of binding and functional sites in Mycobacterium tuberculosis.
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Affiliation(s)
- Ashish K Pathak
- Department of Organic Chemistry, Southern Research Institute, Birmingham, AL 35255, USA
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33
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Pathak AK, Pathak V, Suling WJ, Gurcha SS, Morehouse CB, Besra GS, Maddry JA, Reynolds RC. Studies on n-octyl-5-(alpha-D-arabinofuranosyl)-beta-D-galactofuranosides for mycobacterial glycosyltransferase activity. Bioorg Med Chem 2002; 10:923-8. [PMID: 11836099 DOI: 10.1016/s0968-0896(01)00343-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The mycobacterial cell wall is a potential target for new drug development. Herein we report the preparation and activity of several n-octyl-5-(alpha-D-arabinofuranosyl)-beta-D-galactofuranoside derivatives. A cell-free assay system has been utilized for determination of the ability of disaccharide analogues to act as arabinosyltransferase acceptors using [14C]-DPA as the glycosyl donor. In addition, in vitro inhibitory activity has been determined in a colorimetric broth microdilution assay system against MTB H37Ra and three clinical isolates of Mycobacterium avium complex (MAC). One of these disaccharides showed moderate activity against MTB. The biological evaluation of these disaccharides suggests that more hydrophobic analogues with a blocked reducing end showed better activity as compared to a totally deprotected disaccharide that more closely resembles the natural substrates in cell wall biosynthesis.
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Affiliation(s)
- Ashish K Pathak
- Department of Organic Chemistry, Southern Research Institute, PO Box 55305, Birmingham, AL 35255, USA
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