201
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Synthesis of l-3-epi-isofagomine, its homo-, n-butyl and bicyclic analogues from d-glucose as glycosidase inhibitors. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.09.102] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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202
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Total synthesis of neokotalanol, a potent α-glucosidase inhibitor isolated from Salacia reticulata. Chin J Nat Med 2013; 11:676-83. [DOI: 10.1016/s1875-5364(13)60079-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Indexed: 11/17/2022]
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203
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Indukuri K, Unnava R, Deka MJ, Saikia AK. Stereoselective Synthesis of Amido and Phenyl Azabicyclic Derivatives via a Tandem Aza Prins-Ritter/Friedel–Crafts Type Reaction of Endocyclic N-Acyliminium Ions. J Org Chem 2013; 78:10629-41. [DOI: 10.1021/jo401450j] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kiran Indukuri
- Department
of Chemistry Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - R. Unnava
- Department
of Chemistry Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Manash J. Deka
- Department
of Chemistry Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Anil K. Saikia
- Department
of Chemistry Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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204
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Silva S, Sánchez-Fernández EM, Ortiz Mellet C, Tatibouët A, Pilar Rauter A, Rollin P. N-Thiocarbonyl Iminosugars: Synthesis and Evaluation of Castanospermine Analogues Bearing Oxazole-2(3H)-thione Moieties. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300720] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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205
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Ajish K, Joseph N, Priya Rani M, Raghu K, Vineetha V, Radhakrishnan K. Synthesis and biological evaluation of carbohydrate appended hydrazinocyclopentenes with potent glycation and α-glucosidase inhibition activities. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.08.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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206
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Wang ZW, Wang JS, Luo J, Kong LY. α-Glucosidase inhibitory triterpenoids from the stem barks of Uncaria laevigata. Fitoterapia 2013; 90:30-7. [PMID: 23856092 DOI: 10.1016/j.fitote.2013.07.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 07/03/2013] [Accepted: 07/06/2013] [Indexed: 01/12/2023]
Abstract
A phytochemical study on the ethanolic extract of the stem barks of Uncaria laevigata leads to the isolation and characterization of 18 triterpenoid compounds. Ten of these are new, including one novel heptanortriterpenoid (1), four ursane triterpenes (2-4, 10), and five oleanane triterpenes (5-9). Their structures were established by spectroscopic methods, especially by 2D-NMR and MS analyses. All these isolates were evaluated for their inhibitory effects on α-glucosidase: ursolic acid and 3 showed potent activities with IC₅₀ values of 16 ± 2.2 and 49 ± 3.7 μM, respectively.
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Affiliation(s)
- Zhi-Wei Wang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
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207
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Pal R, Sarkar S, Chatterjee N, Sen AK. Efficient synthesis of 1,4-disubstituted triazolyl N-carboxamides via a simple and convenient MCR using basic alumina as solid support. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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208
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Gkizis P, Argyropoulos NG, Coutouli-Argyropoulou E. A sort synthesis of polyhydroxylated pyrrolizidines via sequential 1,3-dipolar cycloaddition and reductive amination. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.098] [Citation(s) in RCA: 9] [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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209
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Corkran HM, Munneke S, Dangerfield EM, Stocker BL, Timmer MSM. Applications and Limitations of the I2-Mediated Carbamate Annulation for the Synthesis of Piperidines: Five- versus Six-Membered Ring Formation. J Org Chem 2013; 78:9791-802. [DOI: 10.1021/jo401512h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hilary M. Corkran
- School
of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
- Malaghan Institute of Medical Research, P.O. Box
7060, Wellington, New Zealand
| | - Stefan Munneke
- School
of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
| | - Emma M. Dangerfield
- School
of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
- Malaghan Institute of Medical Research, P.O. Box
7060, Wellington, New Zealand
| | - Bridget L. Stocker
- School
of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
- Malaghan Institute of Medical Research, P.O. Box
7060, Wellington, New Zealand
| | - Mattie S. M. Timmer
- School
of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
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210
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Decroocq C, Joosten A, Sergent R, Mena Barragán T, Ortiz Mellet C, Compain P. The Multivalent Effect in Glycosidase Inhibition: Probing the Influence of Valency, Peripheral Ligand Structure, and Topology with Cyclodextrin-Based Iminosugar Click Clusters. Chembiochem 2013; 14:2038-49. [DOI: 10.1002/cbic.201300283] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Indexed: 01/03/2023]
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211
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Long S, Stefani FR, Biondi S, Ghiselli G, Panunzio M. N-Heteroarylmethyl-5-hydroxy-1,2,5,6-tetrahydropyridine-3-carboxylic acid a novel scaffold for the design of uncompetitive α-glucosidase inhibitors. Bioorg Med Chem 2013; 21:5811-22. [DOI: 10.1016/j.bmc.2013.07.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 06/07/2013] [Accepted: 07/08/2013] [Indexed: 10/26/2022]
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212
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He L, Laurent G, Retailleau P, Folléas B, Brayer JL, Masson G. Highly Enantioselective Aza-Diels-Alder Reaction of 1-Azadienes with Enecarbamates Catalyzed by Chiral Phosphoric Acids. Angew Chem Int Ed Engl 2013; 52:11088-91. [DOI: 10.1002/anie.201304969] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 07/05/2013] [Indexed: 12/14/2022]
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213
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He L, Laurent G, Retailleau P, Folléas B, Brayer JL, Masson G. Highly Enantioselective Aza-Diels-Alder Reaction of 1-Azadienes with Enecarbamates Catalyzed by Chiral Phosphoric Acids. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304969] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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214
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Quan N, Nie LD, Zhu RH, Shi XX, Ding W, Lu X. Total Syntheses of (+)-Valiolamine and (-)-1-epi-Valiolamine from Naturally Abundant (-)-Shikimic Acid. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300804] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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215
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Galeta J, Tenora L, Man S, Potáček M. Dihydropyrrolo[1,2-b]pyrazoles: withasomnine and related compounds. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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216
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Stereocomplementary Routes to Hydroxylated Nitrogen Heterocycles: Total Syntheses of Casuarine, Australine, and 7-epi-Australine. Chemistry 2013; 19:10595-604. [DOI: 10.1002/chem.201301320] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Indexed: 11/07/2022]
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217
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Yan P, Liu J, Sun Q, Yao J, Xue Z, Wang C. One-Pot Synthesis of Iodoindolizine Derivatives via a Novel Multicomponent Reaction. JOURNAL OF CHEMICAL RESEARCH 2013. [DOI: 10.3184/174751913x13667371904771] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A one-pot reaction was developed to synthesise a variety of 1-iodoindolizines from substituted acetophenone, acetic acid, pyridine, and molecular iodine. The structure of 3-benzoyl-1-iodoindolizine (2a) and 1,3-dibenzoylindolizine (3a) was further confirmed by X-ray single crystal analysis.
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Affiliation(s)
- Peiyun Yan
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Juanjuan Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Qian Sun
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Juan Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Zhiheng Xue
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Street, Yangzhou 225002, P. R. China
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218
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Repetto E, Marino C, Varela O. Synthesis of the (1→6)-linked thiodisaccharide of galactofuranose: Inhibitory activity against a β-galactofuranosidase. Bioorg Med Chem 2013; 21:3327-33. [DOI: 10.1016/j.bmc.2013.02.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 02/08/2013] [Accepted: 02/18/2013] [Indexed: 11/29/2022]
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219
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Li QR, Dong GR, Park SJ, Hong YR, Kim IS, Jung YH. Asymmetric Formal Synthesis of (-)-Swainsonine by a Highly Regioselective and Diastereoselective Allylic Amination Using Chlorosulfonyl Isocyanate. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300308] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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220
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Guo L, Liu Y, Wan Y, Wang PG, Zhao W. Effective and one-step stereo-controlled synthesis of benzyloxylated-diiodopentanes for the synthesis of five-membered imino-sugars. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.02.115] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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221
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222
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Pandey S, Sree A, Dash SS, Sethi DP, Chowdhury L. Diversity of marine bacteria producing beta-glucosidase inhibitors. Microb Cell Fact 2013; 12:35. [PMID: 23590573 PMCID: PMC3639877 DOI: 10.1186/1475-2859-12-35] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 04/14/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Beta-glucosidase inhibitors are being extensively studied for use as anti-diabetics, anti-obesity and anti-tumour compounds. So far, these compounds have been reported in large numbers from plants, mushrooms, algae and fungi. There are very few reports of such inhibitors from bacteria in the open literature, particularly marine bacteria; although the best known inhibitor deoxynojirimycin was isolated from bacilli and actinomycete. Through this study, we tried to discover the diversity of microbial associates of marine sponge and sediment producing β-glucosidase inhibitors. RESULTS We found 41 (22.7%) out of 181 bacteria, produced such inhibitors. The inhibitors are abundant in bacterial associates of marine sponge Aka coralliphaga. When these bacteria were phylogenetically analyzed, it was found that marine bacteria producing glucosidase inhibitors belong to the phylum Firmicutes (23), Actinobacteria (9), Proteobacteria (7) and Bacteroidetes (1). CONCLUSION A significant number of marine bacteria belonging to a wide range of bacterial taxa were found to produce β-glucosidase inhibitors. These compounds are abundantly present in bacteria of the phylum Firmicutes followed by the phylum Actinobacteria. The results nurture a hope of finding new compounds, which can inhibit glucosidases, in the bacterial domain of marine organisms. Thus, marine microbial cells can be utilized as producers of pharmacologically essential enzyme inhibitors.
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Affiliation(s)
- Sony Pandey
- Environment and Sustainability Department, CSIR - Institute of Minerals and Materials Technology, Bhubaneswar, Odisha, 751013, India
| | - Ayinampudi Sree
- Environment and Sustainability Department, CSIR - Institute of Minerals and Materials Technology, Bhubaneswar, Odisha, 751013, India
| | - Soumya Suchismita Dash
- Environment and Sustainability Department, CSIR - Institute of Minerals and Materials Technology, Bhubaneswar, Odisha, 751013, India
| | - Dipti Priya Sethi
- Environment and Sustainability Department, CSIR - Institute of Minerals and Materials Technology, Bhubaneswar, Odisha, 751013, India
| | - Lipsa Chowdhury
- Environment and Sustainability Department, CSIR - Institute of Minerals and Materials Technology, Bhubaneswar, Odisha, 751013, India
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223
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Guerreiro LR, Carreiro EP, Fernandes L, Cardote TA, Moreira R, Caldeira AT, Guedes RC, Burke A. Five-membered iminocyclitol α-glucosidase inhibitors: Synthetic, biological screening and in silico studies. Bioorg Med Chem 2013; 21:1911-7. [DOI: 10.1016/j.bmc.2013.01.030] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 01/10/2013] [Accepted: 01/14/2013] [Indexed: 11/28/2022]
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224
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One-Pot Synthesis of Pyrrolo[3,4-a]indolizine-1,3-diones through [3+2] Cycloaddition-Oxidation Reaction Catalyzed by CuIISalt and O2as the Oxidant. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201488] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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225
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Das SK, Panda G. Stereoselective approach to aminocyclopentitols from Garner aldehydes. RSC Adv 2013. [DOI: 10.1039/c3ra40648b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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226
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Joseph N, Rajan R, John J, Devika NV, Chand SS, Suresh E, Pihko PM, Radhakrishnan KV. An exclusive approach to 3,4-disubstituted cyclopentenes and alkylidene cyclopentenes via the palladium catalyzed ring opening of azabicyclic olefins with aryl halides. RSC Adv 2013. [DOI: 10.1039/c3ra41504j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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227
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Lahiri R, Suman Reddy Y, Kulkarni SA, Vankar YD. Synthesis of unnatural indolizidines, pyrrolizidine and C-alkyl iminosugars from sugar derived hemiaminals. RSC Adv 2013. [DOI: 10.1039/c3ra43510e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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228
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Lahiri R, Ansari AA, Vankar YD. Recent developments in design and synthesis of bicyclic azasugars, carbasugars and related molecules as glycosidase inhibitors. Chem Soc Rev 2013; 42:5102-18. [DOI: 10.1039/c3cs35525j] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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229
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Prasad V, Kumar D, Tiwari VK. A highly expeditious synthesis of a bicyclic iminosugar using the novel key step of [NMM]+[HSO4]− promoted conjugate addition and Mitsunobu reaction. RSC Adv 2013. [DOI: 10.1039/c3ra23467c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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230
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Serafidou AT, Yioti EG, Gallos JK. A Protection-Free Synthetic Access to (±)-1-Deoxy-6-epi-castanospermine and (±)-1-Deoxy-6,8a-di-epi-castanospermine. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201334] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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231
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Chen H, Yang T, Wei S, Zhang H, Li R, Qin Z, Li X. Synthetic bicyclic iminosugar derivatives fused thiazolidin-4-one as new potential HIV-RT inhibitors. Bioorg Med Chem Lett 2012; 22:7041-4. [DOI: 10.1016/j.bmcl.2012.09.100] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 09/25/2012] [Accepted: 09/26/2012] [Indexed: 11/28/2022]
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232
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Zhou L, Tay DW, Chen J, Leung GYC, Yeung YY. Enantioselective synthesis of 2-substituted and 3-substituted piperidines through a bromoaminocyclization process. Chem Commun (Camb) 2012; 49:4412-4. [PMID: 23072774 DOI: 10.1039/c2cc36578b] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A catalytic enantioselective bromocyclization of olefinic amides using amino-thiocarbamates as the catalysts has been developed. The resulting enantioenriched 2-substituted 3-bromopiperidines can readily be transformed to 3-substituted piperidines through a silver salt-mediated rearrangement. This process has been applied to the synthesis of a dopaminergic drug, Preclamol.
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Affiliation(s)
- Ling Zhou
- Department of Chemistry, NUS, 3 Science Drive 3, Singapore11754
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233
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Zeng Z, Mizukami S, Kikuchi K. Simple and real-time colorimetric assay for glycosidases activity using functionalized gold nanoparticles and its application for inhibitor screening. Anal Chem 2012; 84:9089-95. [PMID: 23009597 DOI: 10.1021/ac301677v] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The development of real-time assays for enzymes has been receiving a great deal of attention in biomedical research recently. Self-immolative elimination is the spontaneous and irreversible disassembly of a multicomponent construct into its constituent fragments through a cascade of elimination processes, in response to external stimuli. Here, we report a simple and real-time colorimetric assay for glycosidases (β-galactosidase and β-glucosidase). Self-immolative elimination was utilized to release amines to give rise to aggregation and color change by electrostatic attraction after cleavage of the trigger by enzymes displayed on functionalized gold nanoparticles (Gal-Lip-AuNPs and Glc-Lip-AuNPs, where AuNPs denotes gold nanoparticles). The detection limits for β-galactosidase and β-glucosidase were as low as 9.2 and 22.3 nM at 20 min, and they improved slightly over time. Thus, glycosidase activity was detected successfully in real time, and this technique could be used for glycosidase inhibitor screening, based on real-time colorimetric variation.
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Affiliation(s)
- Zhanghua Zeng
- Division of Advanced Science and Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Osaka 565-0871, Japan
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234
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Development of inhibitors as research tools for carbohydrate-processing enzymes. Biochem Soc Trans 2012; 40:913-28. [DOI: 10.1042/bst20120201] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Carbohydrates, which are present in all domains of life, play important roles in a host of cellular processes. These ubiquitous biomolecules form highly diverse and often complex glycan structures without the aid of a template. The carbohydrate structures are regulated solely by the location and specificity of the enzymes responsible for their synthesis and degradation. These enzymes, glycosyltransferases and glycoside hydrolases, need to be functionally well characterized in order to investigate the structure and function of glycans. The use of enzyme inhibitors, which target a particular enzyme, can significantly aid this understanding, and may also provide insights into therapeutic applications. The present article describes some of the approaches used to design and develop enzyme inhibitors as tools for investigating carbohydrate-processing enzymes.
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235
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Pawar NJ, Parihar VS, Chavan ST, Joshi R, Joshi PV, Sabharwal SG, Puranik VG, Dhavale DD. α-Geminal Dihydroxymethyl Piperidine and Pyrrolidine Iminosugars: Synthesis, Conformational Analysis, Glycosidase Inhibitory Activity, and Molecular Docking Studies. J Org Chem 2012; 77:7873-82. [DOI: 10.1021/jo3009534] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nitin J. Pawar
- Department of Chemistry, Garware
Research Centre, University of Pune, Pune,
411 007, India
| | - Vijay Singh Parihar
- Department of Chemistry, Garware
Research Centre, University of Pune, Pune,
411 007, India
| | - Sanjay T. Chavan
- Division
of Biochemistry, Department
of Chemistry, University of Pune, Pune,
411 007, India
| | - Rakesh Joshi
- Biochemical
Sciences Division, National Chemical Laboratory, Pune, 411 008, India
| | - Pranaya V. Joshi
- Centre for Material Characterization, National Chemical Laboratory, Pune, 411 008, India
| | - Sushma G. Sabharwal
- Division
of Biochemistry, Department
of Chemistry, University of Pune, Pune,
411 007, India
| | - Vedavati G. Puranik
- Centre for Material Characterization, National Chemical Laboratory, Pune, 411 008, India
| | - Dilip D. Dhavale
- Department of Chemistry, Garware
Research Centre, University of Pune, Pune,
411 007, India
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236
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de Graaff C, Ruijter E, Orru RVA. Recent developments in asymmetric multicomponent reactions. Chem Soc Rev 2012; 41:3969-4009. [PMID: 22546840 DOI: 10.1039/c2cs15361k] [Citation(s) in RCA: 635] [Impact Index Per Article: 52.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Multicomponent reactions (MCRs) receive increasing attention because they address both diversity and complexity in organic synthesis. Thus, in principle diverse sets of relatively complex structures can be generated from simple starting materials in a single reaction step. The ever increasing need for optically pure compounds for pharmaceutical and agricultural applications as well as for catalysis promotes the development of asymmetric multicomponent reactions. In recent years, asymmetric multicomponent reactions have been applied to the total synthesis of various enantiopure natural products and commercial drugs, reducing the number of required reaction steps significantly. Although many developments in diastereoselective MCRs have been reported, the field of catalytic enantioselective MCRs has just started to blossom. This critical review describes developments in both diastereoselective and catalytic enantioselective multicomponent reactions since 2004. Significantly broadened scopes, new techniques, more environmentally benign methods and entirely novel MCRs reflect the increasingly inventive paths that synthetic chemist follow in this field. Until recently, enantioselective transition metal-catalyzed MCRs represented the majority of catalytic enantioselective MCRs. However, metal contamination is highly undesirable for drug synthesis. The emergence of organocatalysis greatly influences the quest for new asymmetric MCRs.
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Affiliation(s)
- Corien de Graaff
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines and Systems, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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237
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Highly stereoselective synthesis of imino-C-di- and trisaccharides as hydrolytically stable glycomimetics. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.05.126] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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238
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Castilla J, Rísquez R, Cruz D, Higaki K, Nanba E, Ohno K, Suzuki Y, Díaz Y, Ortiz Mellet C, García Fernández JM, Castillón S. Conformationally-locked N-glycosides with selective β-glucosidase inhibitory activity: identification of a new non-iminosugar-type pharmacological chaperone for Gaucher disease. J Med Chem 2012; 55:6857-65. [PMID: 22762530 DOI: 10.1021/jm3006178] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A series of conformationally locked N-glycosides having a cis-1,2-fused pyranose-1,3-oxazoline-2-thione structure and bearing different substituents at the exocyclic sulfur has been prepared. The polyhydroxylated bicyclic system was built in only three steps by treatment of the corresponding readily available 1,2-anhydrosugar with KSCN using TiO(TFA)(2) as catalyst, followed by S-alkylation and acetyl deprotection. In vitro screening against several glycosidase enzymes showed highly specific inhibition of mammalian β-glucosidase with a marked dependence of the potency upon the nature of the exocyclic substituent. The most potent representative, bearing an S-(ω-hydroxyhexadecyl) substituent, was further assayed as inhibitor of the human lysosomal β-glucocerebrosidase and as pharmacological chaperone in Gaucher disease fibroblasts. Activity enhancements in N370S/N370S mutants analogous to those achieved with the reference compound ambroxol were attained with a more favorable chaperone/inhibitor balance.
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Affiliation(s)
- Javier Castilla
- Department de Química Analítica i Química Orgànica, Universitat Rovira i Virgili , C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
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239
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Developing inhibitors of glycan processing enzymes as tools for enabling glycobiology. Nat Chem Biol 2012; 8:683-94. [PMID: 22810773 DOI: 10.1038/nchembio.1029] [Citation(s) in RCA: 140] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Glycoconjugates are ubiquitous biomolecules found in all kingdoms of life. These diverse structures are metabolically responsive and occur in a cell line- and protein-specific manner, conferring tissue type-specific properties. Glycans have essential roles in diverse processes, including, for example, intercellular signaling, inflammation, protein quality control, glucohomeostasis and cellular adhesion as well as cell differentiation and proliferation. Many mysteries remain in the field, however, and uncovering the physiological roles of various glycans remains a key pursuit. Realizing this aim necessitates the ability to subtly and selectively manipulate the series of different glycoconjugates both in cells and in vivo. Selective small-molecule inhibitors of glycan processing enzymes hold great potential for such manipulation as well as for determining the function of 'orphan' carbohydrate-processing enzymes. In this review, we discuss recent advances and existing inhibitors, the prospects for small-molecule inhibitors and the challenges associated with generating high-quality chemical probes for these families of enzymes. The coordinated efforts of chemists, biochemists and biologists will be crucial for creating and characterizing inhibitors that are useful tools both for advancing a basic understanding of glycobiology in mammals as well as for validating new potential therapeutic targets within this burgeoning field.
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240
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Thompson AJ, Heu T, Shaghasi T, Benyamino R, Jones A, Friis EP, Wilson KS, Davies GJ. Structure of the catalytic core module of theChaetomium thermophilumfamily GH6 cellobiohydrolase Cel6A. ACTA CRYSTALLOGRAPHICA SECTION D: BIOLOGICAL CRYSTALLOGRAPHY 2012; 68:875-82. [DOI: 10.1107/s0907444912016496] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Accepted: 04/16/2012] [Indexed: 11/11/2022]
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241
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Li H, Zhang Y, Favre S, Vogel P, Sollogoub M, Blériot Y. Synthesis of branched seven-membered 1-N-iminosugars and their evaluation as glycosidase inhibitors. Carbohydr Res 2012; 356:110-4. [DOI: 10.1016/j.carres.2011.10.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 10/22/2011] [Accepted: 10/25/2011] [Indexed: 10/15/2022]
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242
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Senger MR, Gomes LDCA, Ferreira SB, Kaiser CR, Ferreira VF, Silva FP. Kinetics Studies on the Inhibition Mechanism of Pancreatic α-Amylase by Glycoconjugated 1H-1,2,3-Triazoles: A New Class of Inhibitors with Hypoglycemiant Activity. Chembiochem 2012; 13:1584-93. [DOI: 10.1002/cbic.201200272] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Indexed: 11/07/2022]
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243
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Paz NR, Santana AG, Francisco CG, Suárez E, González CC. Synthesis of Tetrazole-Fused Glycosides by a Tandem Fragmentation–Cyclization Reaction. Org Lett 2012; 14:3388-91. [DOI: 10.1021/ol3013638] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Nieves R. Paz
- Instituto de Productos Naturales y Agrobiología del C.S.I.C., Avenida Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
| | - Andrés G. Santana
- Instituto de Productos Naturales y Agrobiología del C.S.I.C., Avenida Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
| | - Cosme G. Francisco
- Instituto de Productos Naturales y Agrobiología del C.S.I.C., Avenida Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
| | - Ernesto Suárez
- Instituto de Productos Naturales y Agrobiología del C.S.I.C., Avenida Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
| | - Concepción C. González
- Instituto de Productos Naturales y Agrobiología del C.S.I.C., Avenida Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
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244
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Yeh PL, Tai CK, Shih TL, Hsiao HL, Wang BC. Conformational analysis of a seven-membered ring azasugar, (3R,4R,6S)-trihydroxyazepane: Comparison of GIAO calculation and experimental NMR spectra on 13C chemical shifts. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2011.08.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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245
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Yun H, Kim J, Sim J, Lee S, Han YT, Chang DJ, Kim DD, Suh YG. Asymmetric Syntheses of 1-Deoxy-6,8a-di-epi-castanospermine and 1-Deoxy-6-epi-castanospermine. J Org Chem 2012; 77:5389-93. [DOI: 10.1021/jo300309z] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Hwayoung Yun
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
| | - Jongmin Kim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
| | - Jaehoon Sim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
| | - Sujin Lee
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
| | - Young Taek Han
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
| | - Dong-Jo Chang
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
| | - Dae-Duk Kim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
| | - Young-Ger Suh
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
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246
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Baran A, Çambul S, Nebioglu M, Balci M. Design, synthesis, and biological activities of some branched carbasugars: construction of a substituted 6-oxabicyclo[3.2.1]nonane skeleton. J Org Chem 2012; 77:5086-97. [PMID: 22607049 DOI: 10.1021/jo300655p] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Transformation of cyclohexa-2,4-diene-1,2-diylbis(methylene) diacetate to various carbasugars is described. Photooxygenation of a cyclohexadiene derivative gave a bicyclicendoperoxide, which was reduced with thiourea to [2-[(acetyloxy)methyl]cyclohexa-2,4-dien-1-yl]methyl acetate. Epoxidation of the remaining double bond followed by epoxide ring-opening and hydrolysis of the acetate groups gave one of the target hexols. The bicyclic endoperoxide was rearranged to a diepoxide with CoTPP. The diepoxide was reacted with sulfamic acid in acetic anhydride, resulting in the formation of a new branched carbasugar as well as in the formation of cyclitols with a 6-oxabicyclo[3.2.1]nonane skeleton. The mechanism of the formation of the products is discussed. The inhibition activity of six cyclitol derivatives was tested against α-glycosidase.
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Affiliation(s)
- Arif Baran
- Department of Chemistry, Sakarya University, 54100 Sakarya, Turkey.
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247
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Jasiński M, Lentz D, Moreno-Clavijo E, Reissig HU. Application of L-Erythrose-Derived Nitrones in the Synthesis of Polyhydroxylated Compounds via 3,6-Dihydro-2H-1,2-oxazine Derivatives. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200158] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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248
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Jagadeesh Y, Ramakrishna K, Venkateswara Rao B. A common synthetic approach for seven and eight-membered polyhydroxylated iminocyclitols. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.04.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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249
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Hattie M, Debowski AW, Stubbs KA. Development of tools to study lacto-N-biosidase: an important enzyme involved in the breakdown of human milk oligosaccharides. Chembiochem 2012; 13:1128-31. [PMID: 22514018 DOI: 10.1002/cbic.201200135] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Indexed: 01/15/2023]
Abstract
Milk and sugar? The elucidation of the catalytic mechanism and the development of the first known inhibitor for lacto-N-biosidases, which are important enzymes involved in the breakdown of human milk oligosaccharides, are described.
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Affiliation(s)
- Mitchell Hattie
- School of Chemistry and Biochemistry, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
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250
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Synthesis and biological activity of bi/tricyclic azasugars fused thiazolidin-4-one and thiazinan-4-one by microwave-assisted tandem Staudinger/aza-Wittig/cyclization. Bioorg Med Chem Lett 2012; 22:2712-6. [DOI: 10.1016/j.bmcl.2012.02.103] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 02/20/2012] [Accepted: 02/29/2012] [Indexed: 11/18/2022]
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