351
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Multivariate QSAR study of 4,5-dihydroxypyrimidine carboxamides as HIV-1 integrase inhibitors. Eur J Med Chem 2009; 44:3577-83. [DOI: 10.1016/j.ejmech.2009.03.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2009] [Accepted: 03/02/2009] [Indexed: 11/17/2022]
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352
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Tamayo JA, Franco F, Lo Re D, Sánchez-Cantalejo F. Synthesis of Pentahydroxylated Pyrrolizidines and Indolizidines. J Org Chem 2009; 74:5679-82. [DOI: 10.1021/jo900801c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Juan A. Tamayo
- Department of Medicinal and Organic Chemistry, Faculty of Pharmacy, University of Granada, Campus de Cartuja, s/n 18071 Granada, Spain
| | - Francisco Franco
- Department of Medicinal and Organic Chemistry, Faculty of Pharmacy, University of Granada, Campus de Cartuja, s/n 18071 Granada, Spain
| | - Daniele Lo Re
- Department of Medicinal and Organic Chemistry, Faculty of Pharmacy, University of Granada, Campus de Cartuja, s/n 18071 Granada, Spain
| | - Fernando Sánchez-Cantalejo
- Department of Medicinal and Organic Chemistry, Faculty of Pharmacy, University of Granada, Campus de Cartuja, s/n 18071 Granada, Spain
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353
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Brumshtein B, Aguilar-Moncayo M, García-Moreno MI, Ortiz Mellet C, García Fernández JM, Silman I, Shaaltiel Y, Aviezer D, Sussman JL, Futerman AH. 6-Amino-6-deoxy-5,6-di-N-(N′-octyliminomethylidene)nojirimycin: Synthesis, Biological Evaluation, and Crystal Structure in Complex with Acid β-Glucosidase. Chembiochem 2009; 10:1480-5. [DOI: 10.1002/cbic.200900142] [Citation(s) in RCA: 43] [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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354
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Šimák O, Staněk J, Moravcová J. A stereocontrolled synthesis of 3-acetamido-1,3,5-trideoxy- and 1,3,5,6-tetradeoxy-1,5-imino-d-glucitol. Carbohydr Res 2009; 344:966-71. [DOI: 10.1016/j.carres.2009.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2008] [Revised: 03/03/2009] [Accepted: 03/17/2009] [Indexed: 10/21/2022]
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355
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Ramstadius C, Hekmat O, Eriksson L, Stålbrand H, Cumpstey I. β-Mannosidase and β-hexosaminidase inhibitors: synthesis of 1,2-bis-epi-valienamine and 1-epi-2-acetamido-2-deoxy-valienamine from d-mannose. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.02.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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356
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Wacharasindhu S, Worawalai W, Rungprom W, Phuwapraisirisan P. (+)-proto-Quercitol, a natural versatile chiral building block for the synthesis of the α-glucosidase inhibitors, 5-amino-1,2,3,4-cyclohexanetetrols. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.02.153] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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357
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Palyam N, Majewski M. Organocatalytic syn-Aldol Reactions of Dioxanones with (S)-Isoserinal Hydrate: Synthesis of l-Deoxymannojirimycin and l-Deoxyidonojirimycin. J Org Chem 2009; 74:4390-2. [DOI: 10.1021/jo900263s] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nagarjuna Palyam
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
| | - Marek Majewski
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
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358
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Jayakanthan K, Mohan S, Pinto BM. Structure Proof and Synthesis of Kotalanol and De-O-sulfonated Kotalanol, Glycosidase Inhibitors Isolated from an Herbal Remedy for the Treatment of Type-2 Diabetes. J Am Chem Soc 2009; 131:5621-6. [DOI: 10.1021/ja900867q] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kumarasamy Jayakanthan
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
| | - Sankar Mohan
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
| | - B. Mario Pinto
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
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359
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Svorc L, Vrábel V, Zúžiová J, Bobošíková M, Kožíšek J. (7R,8R,8aS)-8-Hydr-oxy-7-phenyl-per-hydro-indolizin-3-one. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o895-6. [PMID: 21582602 PMCID: PMC2968891 DOI: 10.1107/s160053680901085x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2009] [Accepted: 03/24/2009] [Indexed: 11/11/2022]
Abstract
The absolute configuration of the title compound, C(14)H(17)NO(2), was assigned from the synthesis. There are two mol-ecules in the asymmetric unit. Their geometries are very similar and corresponding bond lengths are almost identical [mean deviation for all non-H atoms = 0.015 (2) Å]. The six-membered ring of the indolizine system adopts a chair conformation. In the crystal structure, mol-ecules form chains parallel to the a axis via inter-molecular O-H⋯O hydrogen bonds, which help to stabilize the crystal structure.
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360
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Šafář P, Žúžiová J, Marchalín Š, Tóthová E, Prónayová N, Švorc Ľ, Vrábel V, Daïch A. Highly diastereoselective approach to novel phenylindolizidinols via benzothieno analogues of tylophorine based on reductive desulfurization of benzo[b]thiophene. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.02.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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361
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Bojarová P, Kren V. Glycosidases: a key to tailored carbohydrates. Trends Biotechnol 2009; 27:199-209. [PMID: 19250692 DOI: 10.1016/j.tibtech.2008.12.003] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Revised: 12/03/2008] [Accepted: 12/12/2008] [Indexed: 10/21/2022]
Abstract
In recent years, carbohydrate-processing enzymes have become the enzymes of choice in many applications thanks to their stereoselectivity and efficiency. This review presents recent developments in glycosidase-catalyzed synthesis via two complementary approaches: the use of wild-type enzymes with engineered substrates, and mutant glycosidases. Genetic engineering has recently produced glucuronyl synthases, an inverting xylosynthase and the first mutant endo-beta-N-acetylglucosaminidase. A thorough selection of enzyme strains and aptly modified substrates have resulted in rare glycostructures, such as N-acetyl-beta-galactosaminuronates, beta1,4-linked mannosides and alpha1,4-linked galactosides. The efficient selection of mutant enzymes is facilitated by high-throughput screening assays involving the co-expression of coupled enzymes or chemical complementation. Selective glycosidase inhibitors and highly specific glycosidases are finding attractive applications in biomedicine, biology and proteomics.
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Affiliation(s)
- Pavla Bojarová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Center of Biocatalysis and Biotransformation, Vídenská 1083, CZ-142 20, Praha 4, Czech Republic
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362
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Rempel BP, Withers SG. Non-Stick Sugars: Synthesis of Difluorosugar Fluorides as Potential Glycosidase Inactivators. Aust J Chem 2009. [DOI: 10.1071/ch09223] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Four new difluorosugar fluorides, 2-deoxy-2,5-difluoro-α-l-idopyranosyl fluoride, 1,5-difluoro-d-glucopyranosyl fluoride, 1,5-difluoro-l-idopyranosyl fluoride, and 2-deoxy-1,2-difluoro-d-glucopyranosyl fluoride, were synthesized from known precursors by a radical bromination/fluoride displacement sequence, followed by deprotection. The compounds were tested as time-dependent inactivators of the β-glucosidase from Agrobacterium sp. (Abg, EC 3.2.1.21) and, while they were shown to bind to the enzyme active site as reversible competitive inhibitors, the only time-dependent inactivation observed was traced to the presence of an extremely small amount (<0.1%) of a highly reactive contaminating impurity.
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363
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Ribes C, Falomir E, Murga J, Carda M, Alberto Marco J. Convergent, stereoselective syntheses of the glycosidase inhibitors broussonetines D and M. Org Biomol Chem 2009; 7:1355-60. [DOI: 10.1039/b821431j] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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364
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Pandey G, Grahacharya D, Shashidhara KS, Khan MI, Puranik VG. Synthesis of polyfunctional quinolizidine alkaloids: development towards selective glycosidase inhibitors. Org Biomol Chem 2009; 7:3300-7. [DOI: 10.1039/b907007a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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365
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Diot J, García-Moreno MI, Gouin SG, Ortiz Mellet C, Haupt K, Kovensky J. Multivalent iminosugars to modulate affinity and selectivity for glycosidases. Org Biomol Chem 2009; 7:357-63. [DOI: 10.1039/b815408b] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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366
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Comesse S, Daïch A, Kadouri-Puchot C, Affani R, Hamon L. An Enantioselective Approach to Synthesis of Advanced Chiral Templates for the Construction of Indolic and Indolizidinic Alkaloids. HETEROCYCLES 2009. [DOI: 10.3987/com-09-11690] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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367
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Brazdova B, Tan NS, Samoshina NM, Samoshin VV. Novel easily accessible glucosidase inhibitors: 4-hydroxy-5-alkoxy-1,2-cyclohexanedicarboxylic acids. Carbohydr Res 2008; 344:311-21. [PMID: 19084826 DOI: 10.1016/j.carres.2008.11.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2008] [Revised: 11/10/2008] [Accepted: 11/14/2008] [Indexed: 11/29/2022]
Abstract
Glycosidases are very important enzymes involved in a variety of biochemical processes with a special importance to biotechnology, food industry, and pharmacology. Novel structurally simple inhibitors derived from cyclohexane-1,2-dicarboxylic acids were synthesized and tested against several fungal glycosidases from Aspergillus oryzae and Penicilliumcanescens. The presence of at least two carboxylic groups and one hydroxy group was essential for efficient inhibition. Significant selective inhibition was observed for alpha- and beta-glucosidases, the magnitude of which depended on the configuration of substituents; inhibition increased for beta-glucosidase by lengthening the alkoxy group of the inhibitor.
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Affiliation(s)
- Barbora Brazdova
- Department of Chemistry, University of the Pacific, Stockton, CA 95211, USA
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368
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Breit B, Bigot A. Enantioselective synthesis of 2,6-dideoxy carbasugars based on a desymmetrizing hydroformylation-carbonyl ene cyclization process. Chem Commun (Camb) 2008:6498-500. [PMID: 19057758 DOI: 10.1039/b817786d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical one-pot process involving a desymmetrizing hydroformylation with the aid of a chiral catalyst-directing group (CDG*), followed by a carbonyl ene cyclization provides a straightforward access to both enantiomers of the resulting cyclohexanediol; further divergent, highly selective and protecting group-free transformations furnish the carbocyclic analogues of four important 2,6-dideoxysugars.
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Affiliation(s)
- Bernhard Breit
- Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität Freiburg, Albertstr. 21, 79104 Freiburg, Germany.
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369
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Aguilar M, Gloster TM, García-Moreno MI, Ortiz Mellet C, Davies GJ, Llebaria A, Casas J, Egido-Gabás M, García Fernandez JM. Molecular Basis for β-Glucosidase Inhibition by Ring-Modified Calystegine Analogues. Chembiochem 2008; 9:2612-8. [DOI: 10.1002/cbic.200800451] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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370
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Mendes AA, Rodrigues DS, Filice M, Fernandez-Lafuente R, Guisan JM, Palomo JM. Regioselective monohydrolysis of per-O-acetylated-1-substituted-β-glucopyranosides catalyzed by immobilized lipases. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.08.099] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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371
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Gholamhose A, Fallah H, Sharifi-Fa F, Mirtajaddi M. Alpha Mannosidase Inhibitory Effect of Some Iranian Plant Extracts. INT J PHARMACOL 2008. [DOI: 10.3923/ijp.2008.460.465] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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372
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Godineau E, Schenk K, Landais Y. Synthesis of fused piperidinones through a radical-ionic cascade. J Org Chem 2008; 73:6983-93. [PMID: 18729322 DOI: 10.1021/jo801308j] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Azabicyclo[4.3.0]nonanes were assembled, from chiral allylsilanes possessing an oxime moiety, using a stereocontrolled formal [2 + 2 + 2] radical-ionic process. The cascade involves the addition of an alpha-iodoester to the less substituted end of the enoxime which is then followed by a 5-exo-trig cyclization onto the aldoxime function, producing an alkoxyaminyl radical species which finally lactamizes to afford the titled piperidinone. High levels of stereoinduction were observed, demonstrating the ability of a silicon group located at the allylic position to efficiently control the stereochemistry of the two newly created stereogenic centers. When the radical cascade was extended to ketoximes, the resulting sterically hindered alkoxyaminyl radical did not react further with the initiator Et3B to produce the expected nucleophilic amidoborane complex. In sharp contrast, this long-lived radical recombined with the initial alpha-stabilized ester radical to produce a cyclopentane incorporating two ester fragments.
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Affiliation(s)
- Edouard Godineau
- University Bordeaux 1, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351, Cours de la Libération, F-33405 Talence Cedex, France
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373
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Phuwapraisirisan P, Puksasook T, Jong-Aramruang J, Kokpol U. Phenylethyl cinnamides: a new series of alpha-glucosidase inhibitors from the leaves of Aegle marmelos. Bioorg Med Chem Lett 2008; 18:4956-8. [PMID: 18760601 DOI: 10.1016/j.bmcl.2008.08.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2008] [Revised: 08/08/2008] [Accepted: 08/11/2008] [Indexed: 10/21/2022]
Abstract
A series of phenylethyl cinnamides, which included new compounds named anhydromarmeline, aegelinosides A and B, were isolated from Aegle marmelos leaves as alpha-glucosidase inhibitors. The structures of new compounds were characterized by spectroscopic data and chemical degradation. Of compounds isolated, anhydroaegeline revealed the most potent inhibitory effect against alpha-glucosidase with IC(50) value of 35.8 microM. The present result also supports ethnopharmacological use of A. marmelos as a remedy for diabetes mellitus.
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Affiliation(s)
- Preecha Phuwapraisirisan
- Natural Products Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand.
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374
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Zhu YP, Yin LJ, Cheng YQ, Yamaki K, Mori Y, Su YC, Li LT. Effects of sources of carbon and nitrogen on production of α-glucosidase inhibitor by a newly isolated strain of Bacillus subtilis B2. Food Chem 2008; 109:737-42. [DOI: 10.1016/j.foodchem.2008.01.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2007] [Revised: 12/22/2007] [Accepted: 01/10/2008] [Indexed: 11/29/2022]
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375
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Liu Y, Ke Z, Cui J, Chen WH, Ma L, Wang B. Synthesis, inhibitory activities, and QSAR study of xanthone derivatives as α-glucosidase inhibitors. Bioorg Med Chem 2008; 16:7185-92. [DOI: 10.1016/j.bmc.2008.06.043] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2008] [Revised: 06/21/2008] [Accepted: 06/24/2008] [Indexed: 11/26/2022]
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376
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Sharma PK, Shah RN, Carver JP. Scale-Up Synthesis of Swainsonine: A Potent α-Mannosidase II Inhibitor. Org Process Res Dev 2008. [DOI: 10.1021/op800059y] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Rajan N. Shah
- GLYCO Design Inc., 480 University Avenue, Toronto, Ontario, Canada
| | - Jeremy P. Carver
- GLYCO Design Inc., 480 University Avenue, Toronto, Ontario, Canada
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377
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Tiwari AK, Kumbhare RM, Agawane SB, Ali AZ, Kumar KV. Reduction in post-prandial hyperglycemic excursion through α-glucosidase inhibition by β-acetamido carbonyl compounds. Bioorg Med Chem Lett 2008; 18:4130-2. [DOI: 10.1016/j.bmcl.2008.05.088] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2008] [Revised: 04/22/2008] [Accepted: 05/22/2008] [Indexed: 10/22/2022]
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378
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Shing TKM, Cheng HM, Wong WF, Kwong CSK, Li J, Lau CBS, Leung PS, Cheng CHK. Enantiospecific Synthesis of Pseudoacarviosin as a Potential Antidiabetic Agent. Org Lett 2008; 10:3145-8. [DOI: 10.1021/ol8010503] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tony K. M. Shing
- Departments of Chemistry, Biochemistry, and Physiology, School of Pharmacy, and, Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Hau M. Cheng
- Departments of Chemistry, Biochemistry, and Physiology, School of Pharmacy, and, Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Wai F. Wong
- Departments of Chemistry, Biochemistry, and Physiology, School of Pharmacy, and, Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Connie S. K. Kwong
- Departments of Chemistry, Biochemistry, and Physiology, School of Pharmacy, and, Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Jianmei Li
- Departments of Chemistry, Biochemistry, and Physiology, School of Pharmacy, and, Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Clara B. S. Lau
- Departments of Chemistry, Biochemistry, and Physiology, School of Pharmacy, and, Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Po Sing Leung
- Departments of Chemistry, Biochemistry, and Physiology, School of Pharmacy, and, Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Christopher H. K. Cheng
- Departments of Chemistry, Biochemistry, and Physiology, School of Pharmacy, and, Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, Hong Kong, China
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379
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Tetrahedron reports on organic chemistry. Tetrahedron 2008. [DOI: 10.1016/s0040-4020(08)00897-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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380
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Wei G, Yu B. Isoflavone Glycosides: Synthesis and Evaluation as α-Glucosidase Inhibitors. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800239] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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381
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Merino P, Delso I, Tejero T, Cardona F, Marradi M, Faggi E, Parmeggiani C, Goti A. Nucleophilic Additions to Cyclic Nitrones en Route to Iminocyclitols – Total Syntheses of DMDP, 6-deoxy-DMDP, DAB-1, CYB-3, Nectrisine, and Radicamine B. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800098] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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382
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Rempel BP, Withers SG. Covalent inhibitors of glycosidases and their applications in biochemistry and biology. Glycobiology 2008; 18:570-86. [PMID: 18499865 DOI: 10.1093/glycob/cwn041] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Glycoside hydrolases are important enzymes in a number of essential biological processes. Irreversible inhibitors of this class of enzyme have attracted interest as probes of both structure and function. In this review we discuss some of the compounds used to covalently modify glycosidases, their use in residue identification, structural and mechanistic investigations, and finally their applications, both in vitro and in vivo, to complex biological systems.
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Affiliation(s)
- Brian P Rempel
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
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383
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Park H, Hwang KY, Kim YH, Oh KH, Lee JY, Kim K. Discovery and biological evaluation of novel alpha-glucosidase inhibitors with in vivo antidiabetic effect. Bioorg Med Chem Lett 2008; 18:3711-5. [PMID: 18524587 DOI: 10.1016/j.bmcl.2008.05.056] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2008] [Revised: 05/14/2008] [Accepted: 05/15/2008] [Indexed: 11/15/2022]
Abstract
Discovery of alpha-glucosidase inhibitors has been actively pursued with the aim to develop therapeutics for the treatment of diabetes and the other carbohydrate-mediated diseases. We have identified four novel alpha-glucosidase inhibitors by means of a drug design protocol involving the structure-based virtual screening under consideration of the effects of ligand solvation in the scoring function and in vitro enzyme assay. Because the newly identified inhibitors reveal in vivo antidiabetic activity as well as a significant potency with more than 70% inhibition of the catalytic activity of alpha-glucosidase at 50 microM, all of them seem to deserve further development to discover new drugs for diabetes. Structural features relevant to the interactions of the newly identified inhibitors with the active site residues of alpha-glucosidase are discussed in detail.
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Affiliation(s)
- Hwangseo Park
- Department of Bioscience and Biotechnology, Sejong University, 98 Kunja-Dong, Kwangjin-Ku, Seoul 143-747, Republic of Korea.
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384
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Toward the Virtual Screening of α-Glucosidase Inhibitors with the Homology-Modeled Protein Structure. B KOREAN CHEM SOC 2008. [DOI: 10.5012/bkcs.2008.29.5.921] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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385
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Benltifa M, García Moreno MI, Ortiz Mellet C, García Fernández JM, Wadouachi A. Synthesis and evaluation of sulfamide-type indolizidines as glycosidase inhibitors. Bioorg Med Chem Lett 2008; 18:2805-8. [PMID: 18420407 DOI: 10.1016/j.bmcl.2008.04.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2008] [Revised: 03/31/2008] [Accepted: 04/01/2008] [Indexed: 11/18/2022]
Abstract
A practical synthesis of reducing sulfamide-derived iminosugar glycomimetics related to the indolizidine glycosidase inhibitor family is reported. The polyhydroxylated bicyclic system was built from readily accessible hexofuranose derivatives through a synthetic scheme that involves 5,6-cyclic sulfamides. Further intramolecular nucleophilic addition of the sulfamide nitrogen atom to the masked aldehyde group of the monosaccharide in the open chain form afforded the target sugar mimics. By starting from d-glucose and d-mannose precursors, 2-aza-3,3-dioxo-3-thiaindolizidine derivatives with hydroxylation profiles that matched those of (+)-castanospermine and 6-epi-(+)-castanospermine were obtained. In vitro screening against a panel of glycosidases evidenced a high selectivity towards alpha-mannosidase.
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Affiliation(s)
- Mahmoud Benltifa
- Laboratoire des Glucides UMR CNRS 6219, Université de Picardie Jules Verne, 33 Rue Saint-Leu, F-80039 Amiens, France
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386
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Totokotsopoulos SM, Koumbis AE, Gallos JK. Facile synthesis of 6a-carba-β-d-fructopyranose through an RCM approach. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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387
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Synthesis and biological evaluation of novel 8-aminomethylated oroxylin A analogues as α-glucosidase inhibitors. Bioorg Med Chem Lett 2008; 18:1659-62. [DOI: 10.1016/j.bmcl.2008.01.055] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2007] [Revised: 12/19/2007] [Accepted: 01/15/2008] [Indexed: 11/16/2022]
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388
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Ellis D, Norman SE, Osborn HM. Synthesis of S-linked carbohydrate analogues via a Ferrier reaction. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.01.042] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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389
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Reddy PV, Veyron A, Koos P, Bayle A, Greene AE, Delair P. Approach to the hyacinthacines: first non-chiral pool synthesis of (+)-hyacinthacine A1. Org Biomol Chem 2008; 6:1170-2. [DOI: 10.1039/b800445e] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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390
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Pandey G, Bharadwaj KC, Khan MI, Shashidhara KS, Puranik VG. Synthesis of polyhydroxy piperidines and their analogues: a novel approach towards selective inhibitors of α-glucosidase. Org Biomol Chem 2008; 6:2587-95. [DOI: 10.1039/b804278k] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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391
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Potterat O, Hamburger M. Drug discovery and development with plant-derived compounds. PROGRESS IN DRUG RESEARCH. FORTSCHRITTE DER ARZNEIMITTELFORSCHUNG. PROGRES DES RECHERCHES PHARMACEUTIQUES 2007; 65:45, 47-118. [PMID: 18084913 DOI: 10.1007/978-3-7643-8117-2_2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An overview is given on current efforts in drug development based on plant-derived natural products. Emphasis is on projects which have advanced to clinical development. Therapeutic areas covered include cancer, viral infections including HIV, malaria, inflammatory diseases, nociception and vaccine adjuvants, metabolic disorders, and neurodegenerative diseases. Aspects which are specific to plant-based drug discovery and development are also addressed, such as supply issues in the commercial development, and the Convention on Biological Diversity.
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Affiliation(s)
- Olivier Potterat
- University of Basel, Institute of Pharmaceutical Biology, Klingelbergstrasse 50, 4056 Basel, Switzerland
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392
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Chen W, Pinto BM. Synthesis of aza- and thia-spiroheterocycles and attempted synthesis of spiro sulfonium compounds related to salacinol. Carbohydr Res 2007; 342:2163-72. [PMID: 17669386 DOI: 10.1016/j.carres.2007.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2007] [Revised: 07/01/2007] [Accepted: 07/03/2007] [Indexed: 11/16/2022]
Abstract
The synthesis of aza- and thia-spiroheterocycles and the attempted synthesis of spiro sulfonium compounds related to salacinol are described. The binding of the nanomolar inhibitor swainsonine to Drosophila Golgi alpha-mannosidase II (dGMII) involves a large contribution of interactions between the six-membered ring of the inhibitor and the hydrophobic pocket within the enzyme active site. Salacinol, a naturally occurring sulfonium ion, is one of the active principles in the aqueous extracts of Salacia reticulata that are traditionally used in Sri Lanka and India for the treatment of diabetes. Spiro aza- and thia-heterocycles and a spiro analogue of salacinol were designed with the expectation that the hydrocarbon portions would make hydrophobic contributions to binding. The former sets of compounds were synthesized successfully but the salacinol analogue proved to be elusive. The stereochemistry of the final compounds was determined by means of 1D-NOESY experiments. The aza- and thia-heterocycles were not effective inhibitors of Golgi alpha-mannosidase II or human maltase glucoamylase.
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Affiliation(s)
- Wang Chen
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
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393
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Etayo P, Badorrey R, Díaz-de-Villegas MD, Gálvez JA. Efficient stereoselective synthesis of enantiopure cis- and trans-1,2,4-trisubstituted piperidines. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.10.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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394
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Yu YB, Miyashiro H, Nakamura N, Hattori M, Park JC. Effects of triterpenoids and flavonoids isolated from Alnus firma on HIV-1 viral enzymes. Arch Pharm Res 2007; 30:820-6. [PMID: 17703732 DOI: 10.1007/bf02978831] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Triterpenoids and flavonoids isolated from Alnus firma S. Z. were found to inhibit HIV-1 virus replication and controlled its essential enzymes. In this study, the inhibition of HIV-1 viral replication and its essential enzymes, such as reverse transcriptase, protease and alpha-glucosidase, were observed using 18 Korean plant extracts. Among the extracts, the methanol extract of Alnus firma leaves showed potent inhibition against the HIV-1 induced cytopathic effect (CPE) in MT-4 cells on microscopic observation (the minimum concentration for complete inhibition of HIV-1 induced CPE, IC=50 microg/mL). Thus, 14 compounds were isolated and identified from the methanol extract of Alnus firma leaves. Of these compounds, the alnustic acid methyl ester exhibited inhibition against HIV-1 protease, with an IC50 of 15.8 microM, and quercetin, quercitrin and myricetin 3-O-beta-D-galactopyranoside displayed inhibition against HIV-1 reverse transcriptase, all with IC50 values of 60 microM. Based on these results, the viral replication inhibition of the methanol extract of Alnus firma leaves was adjudged to be acutely related to the protease inhibition activation of the alnustic acid methyl ester as well as the reverse transcriptase inhibition activation of flavonoids.
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Affiliation(s)
- Young-Beob Yu
- Department of Herbal Pharmaceutical Development, Korea Institute of Oriental Medicine, Daejeon 305-811, Korea
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395
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Shih T, Fang Y. Expeditious Synthesis of New 3,4,6‐Trihydroxythiepanes from d‐(‐)‐Quinic Acid. SYNTHETIC COMMUN 2007. [DOI: 10.1080/00397910701490113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Tzenge‐Lien Shih
- a Department of Chemistry , Tamkang University , Taiwan, Republic of China
| | - Yi‐Chuan Fang
- a Department of Chemistry , Tamkang University , Taiwan, Republic of China
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396
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Park H, Hwang KY, Oh KH, Kim YH, Lee JY, Kim K. Discovery of novel alpha-glucosidase inhibitors based on the virtual screening with the homology-modeled protein structure. Bioorg Med Chem 2007; 16:284-92. [PMID: 17920282 DOI: 10.1016/j.bmc.2007.09.036] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2007] [Revised: 09/17/2007] [Accepted: 09/19/2007] [Indexed: 10/22/2022]
Abstract
Discovery of alpha-glucosidase inhibitors has been actively pursued with the aim to develop therapeutics for the treatment of diabetes and the other carbohydrate mediated diseases. We have been able to identify 13 novel alpha-glucosidase inhibitors by means of a computer-aided drug design protocol involving homology modeling of the target protein and the virtual screening with docking simulations under consideration of the effects of ligand solvation in the binding free energy function. Because the newly discovered inhibitors are structurally diverse and reveal a significant potency with IC(50) values lower than 50 microM, all of them can be considered for further development by structure-activity relationship studies or de novo design methods. Structural features relevant to the interactions of the newly identified inhibitors with the active site residues of alpha-glucosidase are discussed in detail.
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Affiliation(s)
- Hwangseo Park
- Department of Bioscience and Biotechnology, Sejong University, 98 Kunja-Dong, Kwangjin-Ku, Seoul 143-747, Republic of Korea.
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397
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Bhat RG, Kumar NS, Pinto BM. Synthesis of phosphate derivatives related to the glycosidase inhibitor salacinol. Carbohydr Res 2007; 342:1934-42. [PMID: 17572396 DOI: 10.1016/j.carres.2007.05.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2007] [Revised: 05/23/2007] [Accepted: 05/25/2007] [Indexed: 10/23/2022]
Abstract
The syntheses of polyhydroxylated imino- and anhydro thio-alditol compounds related to the naturally occurring glycosidase inhibitor, salacinol, containing a phosphate group in the side chain are described. The compounds lack hydroxyl groups on the acyclic side chain and are prototypes of the exact salacinol analogue. The synthetic strategy relies on the Mitsunobu reaction of N- and S-hydroxyalkyl derivatives of 2,3,5-tri-O-benzyl-1,4-dideoxy-1,4-imino-D-arabinitol and 1,4-anhydro-2,3,5-tri-O-benzyl-1-thio-D-arabinitol with dibenzyl phosphate to yield the corresponding protected heteroalditol phosphates. Screening of these compounds against recombinant human maltase glucoamylase (MGA), a critical intestinal glucosidase involved in the processing of oligosaccharides of glucose into glucose itself, shows that they are not effective inhibitors of MGA and demonstrates the importance of the hydroxyl and/or sulfate substituents present on the side chain for effective inhibition. The attempted synthesis of the exact analogue of salacinol by opening of cyclic phosphates is also described.
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Affiliation(s)
- Ramakrishna G Bhat
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
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398
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Chen W, Sim L, Rose DR, Pinto BM. Synthesis of analogues of salacinol containing a carboxylate inner salt and their inhibitory activities against human maltase glucoamylase. Carbohydr Res 2007; 342:1661-7. [PMID: 17597595 DOI: 10.1016/j.carres.2007.06.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2007] [Revised: 06/02/2007] [Accepted: 06/02/2007] [Indexed: 10/23/2022]
Abstract
The syntheses of analogues of the naturally occurring glycosidase inhibitor, salacinol, containing a carboxylate inner salt are described. Salacinol is a sulfonium ion with an internal sulfate counterion. The synthetic strategy relies on the nucleophilic attack of 1,4-anhydro-2,3,5-tri-O-benzyl-4-thio-D- or L-arabinitol at the least hindered carbon of 4,5-anhydro-2,3-O-isopropylidene-D-ribonic acid benzyl ester to yield coupled adducts. Deprotection of the coupled products gives the target compounds. The compound derived from D-arabinitol inhibits recombinant human maltase glucoamylase, one of the key intestinal enzymes involved in the breakdown of glucose oligosaccharides in the small intestine, with a Ki value of 10+/-1 microM.
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Affiliation(s)
- Wang Chen
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
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399
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Tetrahedron reports on organic chemistry. Tetrahedron 2007. [DOI: 10.1016/s0040-4020(07)01371-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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400
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Mohan S, Pinto BM. Zwitterionic glycosidase inhibitors: salacinol and related analogues. Carbohydr Res 2007; 342:1551-80. [PMID: 17559821 DOI: 10.1016/j.carres.2007.05.014] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2007] [Revised: 05/01/2007] [Accepted: 05/08/2007] [Indexed: 11/24/2022]
Abstract
Natural products with interesting biological properties and structural diversity have often served as valuable lead drug candidates for the treatment of human diseases. Salacinol, a naturally occurring alpha-glucosidase inhibitor, was shown to be one of the active principles of the aqueous extract of a medicinal plant that has been prescribed traditionally as an Ayurvedic treatment for type II diabetes. Salacinol contains an intriguing zwitterionic sulfonium-sulfate structure that comprises a 1,4-anhydro-4-thio-D-arabinitol core and a polyhydroxylated acyclic chain. Due to the unique structural features and its potential to become a lead drug candidate in the treatment of type II diabetes, a great deal of attention has been focused on salacinol and its analogues. Since the isolation of salacinol, several papers describing various synthetic routes to salacinol and its analogues have appeared in the literature. This review is aimed at highlighting the synthetic aspects of salacinol and related compounds as well as their structure-activity relationship studies.
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Affiliation(s)
- Sankar Mohan
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
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