1
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Spedding H, Karuso P, Liu F. Synthesis of Substituted Oxo-Azepines by Regio- and Diastereoselective Hydroxylation. Molecules 2017; 22:molecules22111871. [PMID: 29088108 PMCID: PMC6150284 DOI: 10.3390/molecules22111871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/26/2017] [Accepted: 10/27/2017] [Indexed: 11/16/2022] Open
Affiliation(s)
- Harold Spedding
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia.
| | - Peter Karuso
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia.
| | - Fei Liu
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia.
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2
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A stereoselective transformation of (−)-shikimic acid into (3R,4S,5R,7R)-7-(hydroxymethyl)azepane-3,4,5-triol, a potential glycosidase inhibitor. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.02.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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3
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Zhao WB, Nakagawa S, Kato A, Adachi I, Jia YM, Hu XG, Fleet GWJ, Wilson FX, Horne G, Yoshihara A, Izumori K, Yu CY. General Synthesis of Sugar-Derived Azepane Nitrones: Precursors of Azepane Iminosugars. J Org Chem 2013; 78:3208-21. [DOI: 10.1021/jo400130p] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wen-Bo Zhao
- Beijing National
Laboratory of Molecular Science (BNLMS), CAS Key Laboratory of Molecular
Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shinpei Nakagawa
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194,
Japan
| | - Atsushi Kato
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194,
Japan
| | - Isao Adachi
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama 930-0194,
Japan
| | - Yue-Mei Jia
- Beijing National
Laboratory of Molecular Science (BNLMS), CAS Key Laboratory of Molecular
Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiang-Guo Hu
- Beijing National
Laboratory of Molecular Science (BNLMS), CAS Key Laboratory of Molecular
Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - George W. J. Fleet
- Chemistry Research
Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K
| | | | - Graeme Horne
- Summit PLC, 91 Milton
Park, Abingdon, Oxon OX14 4RY, U.K
| | - Akihide Yoshihara
- Rare Sugar Research Center, Kagawa University, 2393 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0795, Japan
| | - Ken Izumori
- Rare Sugar Research Center, Kagawa University, 2393 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0795, Japan
| | - Chu-Yi Yu
- Beijing National
Laboratory of Molecular Science (BNLMS), CAS Key Laboratory of Molecular
Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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4
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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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5
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Towards a stable noeuromycin analog with a D-manno configuration: synthesis and glycosidase inhibition of D-manno-like tri- and tetrahydroxylated azepanes. Bioorg Med Chem 2010; 20:641-9. [PMID: 20971647 DOI: 10.1016/j.bmc.2010.09.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Revised: 09/14/2010] [Accepted: 09/22/2010] [Indexed: 11/22/2022]
Abstract
Noeuromycin is a highly potent albeit unstable glycosidase inhibitor due to its hemiaminal function. While stable D-gluco-like analogs have been reported, no data are available for D-manno-like structures. A series of tri- and tetrahydroxylated seven-membered iminosugars displaying either a D-manno-or a L-gulo-like configuration, were synthesized from methyl α-D-mannopyranoside using a reductive amination-mediated ring expansion as the key step. Screening towards a range of commercial glycosidases demonstrated their potency as competitive glycosidase inhibitors while cellular assay showed selective albeit weak glycoprotein processing mannosidase inactivation.
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6
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Kalamkar NB, Kasture VM, Chavan ST, Sabharwal SG, Dhavale DD. Concise and practical route to tri- and tetra-hydroxy seven-membered iminocyclitols as glycosidase inhibitors from d-(+)-glucurono-γ-lactone. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.08.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Synthesis of azepane and nojirimycin iminosugars: the Sharpless asymmetric epoxidation of d-glucose-derived allyl alcohol and highly regioselective epoxide ring opening using sodium azide. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.01.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Estévez AM, Soengas RG, Otero JM, Estévez JC, Nash RJ, Estévez RJ. Studies on the transformation of nitrosugars into iminosugars III: synthesis of (2R,3R,4R,5R,6R)-2-(hydroxymethyl)azepane-3,4,5,6-tetraol and (2R,3R,4R,5R,6S)-2-(hydroxymethyl)azepane-3,4,5,6-tetraol. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2009.12.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Otero JM, Estévez AM, Soengas RG, Estévez JC, Nash RJ, Fleet GW, Estévez RJ. Studies on the transformation of nitrosugars into branched chain iminosugars. Part II: Synthesis of (3R,4R,5R,6S)-2,2-bis(hydroxymethyl)azepane-3,4,5,6-tetraol. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.10.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Jiao Y, Fang ZJ, Jiang YH, Zheng BH, Cheng J. Practical and concise synthesis of 2-oxo-3,4,5,6-tetraethoxyazepane from d-glucono-1,5-lactone. CHINESE CHEM LETT 2008. [DOI: 10.1016/j.cclet.2008.04.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Shih TL, Yang RY, Li ST, Chiang CF, Lin CH. Expeditious Synthesis of Tri- and Tetrahydroxyazepanes from d-(−)-Quinic Acid as Potent Glycosidase Inhibitors. J Org Chem 2007; 72:4258-61. [PMID: 17480095 DOI: 10.1021/jo070058x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Several new stereoisomers of 3,4,6-trihydroxyazepanes and 7-hydroxymethyl-3,4,5-trihydroxyazepanes as well as known 3,4,5-trihydroxyazepanes were synthesized as potent glycosidase inhibitors from D-(-)-quinic acid in an efficient manner. The key step employs dihydroxylation of protected chiral 1,4,5-cyclohex-2-enetriols under RuCl3/NaIO4/phosphate buffer (pH 7) condition, followed by reductive amino cyclization. We found the choice of an appropriate protecting group to C1-OH of chiral 1,4,5-cyclohex-2-enetriols would increase the yields of cyclization. The preliminary biological data indicate some of these azepanes possess potent inhibition against alpha-mannosidase and alpha-fucosidase.
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Affiliation(s)
- Tzenge-Lien Shih
- Department of Chemistry, Tamkang University, Tamsui, Taipei County 25137, Taiwan.
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12
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Markad SD, Karanjule NS, Sharma T, Sabharwal SG, Dhavale DD. Polyhydroxylated homoazepanes and 1-deoxy-homonojirimycin analogues: Synthesis and glycosidase inhibition study. Org Biomol Chem 2006; 4:3675-80. [PMID: 16990944 DOI: 10.1039/b609000a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Johnson-Claisen rearrangement of D-gluco and L-ido-derived allylic orthoesters afforded gamma,delta-unsaturated ester that on ester reduction, epoxidation, regioselective oxirane opening by sodium azide and hydrogenation led to sugar amino alcohols--immediate precursors for 1-deoxy-homonojirimycin 3a,b, and polyhydroxylated homoazepanes 4a,b. Our synthetic approach and glycosidase inhibitory activity is reported.
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Affiliation(s)
- Shankar D Markad
- Garware Research Centre, Department of Chemistry, University of Pune, Pune, 411 007, India
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13
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Chakraborty C, Dhavale DD. Short and efficient synthesis of (2S,3R,4R,5R) and (2S,3R,4R,5S)-tetrahydroxyazepanes via the Henry reaction. Carbohydr Res 2006; 341:912-7. [PMID: 16516178 DOI: 10.1016/j.carres.2006.02.007] [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: 12/12/2005] [Revised: 01/30/2006] [Accepted: 02/09/2006] [Indexed: 11/28/2022]
Abstract
The Henry reaction with the easily available alpha-d-xylo-pentodialdose afforded a diastereomeric mixture of nitroaldoses with the alpha-d-gluco- and beta-l-ido-configuration, respectively, in good yield. When n-BuLi was used as the base, the reaction afforded the alpha-d-gluco-nitroaldose as the only product. The reduction of the nitro group in the alpha-d-gluco- and beta-l-ido-nitroaldoses, removal of the protecting groups and intramolecular reductive cyclo-amination afforded the corresponding (2S,3R,4R,5R) and (2S,3R,4R,5S) tetrahydroxyazepanes.
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Affiliation(s)
- Chaitali Chakraborty
- Garware Research Centre, Department of Chemistry, University of Pune, Pune 411 007, India
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14
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Markad SD, Karanjule NS, Sharma T, Sabharwal SG, Puranik VG, Dhavale DD. Synthesis of tetrahydroxy perhydroaza-azulenes: tandem Johnson–Claisen rearrangement ofd-glucose-derived allylic alcohols. Org Biomol Chem 2006; 4:2549-55. [PMID: 16791317 DOI: 10.1039/b603545k] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Johnson-Claisen rearrangement of D-glucose-derived allylic alcohols 5a,b, afforded sugar-substituted gamma,delta-unsaturated ester in high yield. Conversion of the ester group to an azidomethyl group, epoxidation of the double bond and hydrogenation gave pyrrolidine ring skeletons 13a and 13b, which were transformed to tetrahydroxy perhydroaza-azulenes 1a and 1b, respectively. Glycosidase inhibitory activity was also evaluated.
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Affiliation(s)
- Shankar D Markad
- Garware Research Centre, Department of Chemistry, University of Pune, India
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15
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Dhavale DD, Kumar KSA, Chaudhari VD, Sharma T, Sabharwal SG, Prakashareddy J. Aziridine carboxylate from d-glucose: synthesis of polyhydroxylated piperidine, pyrrolidine alkaloids and study of their glycosidase inhibition. Org Biomol Chem 2005; 3:3720-6. [PMID: 16211108 DOI: 10.1039/b509216g] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The D-glucose derived aziridine carboxylate 5 was obtained from (E)-ethyl-6-bromo-1,2-O-isopropylidene-3-O-benzyl-5-deoxy-alpha-D-xylo-5-eno-heptofuranuronate 4 through conjugate addition of benzylamine and in situ intramolecular nucleophilic expulsion of bromine. The regioselective aziridine ring-opening, using water as a nucleophile, resulted in the alpha-hydroxy-beta-aminoester 6, which was exploited in the synthesis of six and five membered azasugars 1b/1c and 2b/2c, respectively. The glycosidase inhibitory activity of the title compounds was evaluated.
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Affiliation(s)
- Dilip D Dhavale
- Garware Research Centre, Department of Chemistry, University of Pune, Pune, 411 007, India.
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16
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Synthesis of a trihydroxylated azepane from d-arabinose by way of an intramolecular alkene nitrone cycloaddition. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2004.11.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Chaudhari VD, Kumar KA, Dhavale DD. The intramolecular conjugate addition of benzylamine to a d-glucose derived α,β-unsaturated ester: an efficient synthesis of trihydroxylated pyrrolidine alkaloids as potential glycosidase inhibitors. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.09.053] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Dhavale DD, Markad SD, Karanjule NS, PrakashaReddy J. Asymmetric Dihydroxylation of d-Glucose Derived α,β-Unsaturated Ester: Synthesis of Azepane and Nojirimycin Analogues. J Org Chem 2004; 69:4760-6. [PMID: 15230599 DOI: 10.1021/jo049509t] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The asymmetric dihydroxylation of a d-glucose derived alpha,beta-unsaturated ester 3 afforded syn vicinal diols in good to high diastereoselectivity. The conversion of these vicinal diols to the corresponding cyclic sulfate, regio-, stereoselective nucleophilic ring opening by sodium azide, and LAH reduction afforded amino heptitols 7a,b that were converted to azepane 1c,d and nojirimycin analogues 2c,d.
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Affiliation(s)
- Dilip D Dhavale
- Department of Chemistry, Garware Research Centre, University of Pune, Pune-411 007, India.
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19
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Li H, Blériot Y, Chantereau C, Mallet JM, Sollogoub M, Zhang Y, Rodríguez-García E, Vogel P, Jiménez-Barbero J, Sinaÿ P. The first synthesis of substituted azepanes mimicking monosaccharides: a new class of potent glycosidase inhibitors. Org Biomol Chem 2004; 2:1492-9. [PMID: 15136805 DOI: 10.1039/b402542c] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of the first examples of seven-membered ring iminoalditols, molecules displaying an extra hydroxymethyl substituent on their seven-membered ring compared to the previously reported polyhydroxylated azepanes, has been achieved from d-arabinose in 10 steps using RCM of a protected N-allyl-aminohexenitol as a key step. While the (2R,3R,4R)-2-hydroxymethyl-3,4-dihydroxy-azepane 10, a seven-membered ring analogue of fagomine, is a weak inhibitor of glycosidases, the (2R,3R,4R,5S,6S)-2-hydroxymethyl-3,4,5,6-tetrahydroxy-azepane 9 selectively inhibits green coffee bean alpha-galactosidase in the low micromolar range (Ki = 2.2 muM) despite a D-gluco relative configuration.
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Affiliation(s)
- Hongqing Li
- Ecole Normale Supérieure, Département de Chimie, UMR 8642, 24 rue Lhomond, 75231 Paris 05, France
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