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Harit VK, Ramesh NG. Amino-functionalized iminocyclitols: synthetic glycomimetics of medicinal interest. RSC Adv 2016. [DOI: 10.1039/c6ra23513a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A review on the syntheses and biological activities of unnatural glycomimetics highlighting the effect of replacement of hydroxyl groups of natural iminosugars by amino functionalities is presented.
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Affiliation(s)
- Vimal Kant Harit
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi - 110016
- India
| | - Namakkal G. Ramesh
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi - 110016
- India
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2
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Arumugam S, Orski SV, Mbua NE, McNitt C, Boons GJ, Locklin J, Popik VV. Photo-click chemistry strategies for spatiotemporal control of metal-free ligation, labeling, and surface derivatization. PURE APPL CHEM 2013. [DOI: 10.1351/pac-con-13-01-08] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Three photo-click ligation strategies described in this account provide
scientists with efficient and selective tools for derivatization of various
molecules, polymers, and surfaces. Fast photochemical reactions that are
utilized in these techniques permit spatiotemporal control of the process. The
absence of activating reagents and catalysts, as well as compatibility with
aqueous media, makes photo-click ligations suitable for biomedical applications.
The first of these approaches relies on the photochemical decarbonylation of
cyclopropenones to produce cyclooctynes. The latter undergo rapid catalyst-free
strain-promoted azide–alkyne cycloaddition (SPAAC) to azide-tagged substrates.
The second method is based on a very fast (>104 M–1
s–1) light-triggered hetero-Diels–Alder reaction and permits
efficient derivatization of substrates bearing vinyl ether moiety. An even
faster reaction between photochemically generated naphthoquinone methides
(oNQMs) and thiols (~2 × 105 M–1
s–1) serves as a basis for a third method. This thiol photo-click
chemistry allows for the selective derivatization of thiol-functionalized
substrates or labeling of free cysteine residues in proteins. The thioether
linkage produced by the reaction of oNQMs and a thiol is stable
under ambient conditions, but can be cleaved by UV irradiation, regenerating
free thiol. This feature permits the removal or replacement of immobilized
compounds, as well as traceless substrate release.
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Affiliation(s)
| | - Sara V. Orski
- 1Department of Chemistry, University of Georgia, Athens, GA 30602, USA
| | - Ngalle Eric Mbua
- 3Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA
| | | | - Geert-Jan Boons
- 3Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA
| | - Jason Locklin
- 1Department of Chemistry, University of Georgia, Athens, GA 30602, USA
| | - Vladimir V. Popik
- 1Department of Chemistry, University of Georgia, Athens, GA 30602, USA
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Yamaguchi T, Blázquez B, Hesek D, Lee M, Llarrull LI, Boggess B, Oliver AG, Fisher JF, Mobashery S. Inhibitors for Bacterial Cell-Wall Recycling. ACS Med Chem Lett 2012; 3:238-242. [PMID: 22844551 PMCID: PMC3404464 DOI: 10.1021/ml2002746] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2011] [Accepted: 01/19/2012] [Indexed: 11/28/2022] Open
Abstract
Gram-negative bacteria have evolved an elaborate process for the recycling of their cell wall, which is initiated in the periplasmic space by the action of lytic transglycosylases. The product of this reaction, β-D-N-acetylglucosamine-(1→4)-1,6-anhydro-β-D-N-acetylmuramyl-L-Ala-γ-D-Glu-meso-DAP-D-Ala-D-Ala (compound 1), is internalized to begin the recycling events within the cytoplasm. The first step in the cytoplasmic recycling is catalyzed by the NagZ glycosylase, which cleaves in a hydrolytic reaction the N-acetylglucosamine glycosidic bond of metabolite 1. The reactions catalyzed by both the lytic glycosylases and NagZ are believed to involve oxocarbenium transition species. We describe herein the synthesis and evaluation of four iminosaccharides as possible mimetics of the oxocarbenium species, and disclose one as a potent (compound 3, K(i) = 300 ± 15 nM) competitive inhibitor of NagZ.
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Affiliation(s)
- Takao Yamaguchi
- Department
Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556,
United States
| | - Blas Blázquez
- Department
Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556,
United States
| | - Dusan Hesek
- Department
Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556,
United States
| | - Mijoon Lee
- Department
Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556,
United States
| | - Leticia I. Llarrull
- Department
Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556,
United States
| | - Bill Boggess
- Department
Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556,
United States
| | - Allen G. Oliver
- Department
Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556,
United States
| | - Jed F. Fisher
- Department
Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556,
United States
| | - Shahriar Mobashery
- Department
Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556,
United States
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Arumugam S, Popik VV. Patterned surface derivatization using Diels-Alder photoclick reaction. J Am Chem Soc 2011; 133:15730-6. [PMID: 21861517 DOI: 10.1021/ja205652m] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The utility of photochemically induced hetero-Diels-Alder reaction for the light-directed surface derivatization and patterning was demonstrated. Glass slides functionalized with vinyl ether moieties are covered with aqueous solution of substrates conjugated to 3-(hydroxymethyl)-2-naphthol (NQMP). Subsequent irradiation via shadow mask results in an efficient conversion of the latter functionality into reactive 2-napthoquinone-3-methide (oNQM) in the exposed areas. oNQM undergoes very facile hetero Diels-Alder addition (k(D-A) ≈ 4 × 10(4) M(-1)s(-1)) to immobilized vinyl ether molecules resulting in a photochemically stable covalent link between a substrate and a surface. Unreacted oNQM groups are rapidly hydrated to regenerate NQMP. The click chemistry based on the addition of photochemically generated oNQM to vinyl ether works well in aqueous solution, proceeds at high rate under ambient conditions, and does not require catalyst or additional reagents. This photoclick strategy represents an unusual paradigm in photopatterning: the surface itself is photochemically inert, while photoreactive component is present in the solution. The short lifetime (τ ≈ 7 ms in H(2)O) of the active form of a photoclick reagent in aqueous solution prevents its migration from the site of irradiation, thus allowing for the spatial control of surface derivatization. Both o-napthoquinone methide precursors and vinyl ethers are stable in dark and the reaction is orthogonal to other derivatization techniques, such as acetylene-azide click reaction.
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Arumugam S, Popik VV. Light-induced hetero-Diels-Alder cycloaddition: a facile and selective photoclick reaction. J Am Chem Soc 2011; 133:5573-9. [PMID: 21417455 DOI: 10.1021/ja200356f] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
2-Napthoquinone-3-methides (oNQMs) generated by efficient photodehydration (Φ=0.2) of 3-(hydroxymethyl)-2-naphthol undergo facile hetero-Diels-Alder addition (k(D-A)∼ 4×10(4) M(-1) s(-1)) to electron-rich polarized olefins in an aqueous solution. The resulting photostable benzo[g]chromans are produced in high to quantitative yield. The unreacted oNQM is rapidly hydrated (k(H2O) ∼145 s(-1)) to regenerate the starting diol. This competition between hydration and cycloaddition makes oNQMs highly selective, since only vinyl ethers and enamines are reactive enough to form the Diels-Alder adduct in an aqueous solution; no cycloaddition was observed with other types of alkenes. To achieve photolabeling or photoligation of two substrates, one is derivatized with a vinyl ether moiety, while 3-(hydroxymethyl)-2-naphthol is attached to the other via an appropriate linker. The light-induced Diels-Alder "click" strategy permits the formation of either a permanent or hydrolytically labile linkage. Rapid kinetics of this photoclick reaction (k=4×10(4) M(-1) s(-1)) is useful for time-resolved applications. The short lifetime (τ ∼7 ms in H(2)O) of the active form of the photoclick reagent prevents its migration from the site of irradiation, thus, allowing for spatial control of the ligation or labeling.
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van den Berg RJ, Noort D, van der Marel GA, van Boom JH, Benschop HP. SYNTHESIS OF PSEUDO-DISACCHARIDE ANALOGUES OF LIPID A: HAPTENS FOR THE GENERATION OF ANTIBODIES WITH GLYCOSIDASE ACTIVITY TOWARDS LIPID A. J Carbohydr Chem 2006. [DOI: 10.1081/car-120004331] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Richard J.B.H.N. van den Berg
- a Department of Chemical Toxicology , TNO Prins Maurits Laboratory , P.O. Box 45, Rijswijk, NL-2280 AA, The Netherlands
| | - Daan Noort
- a Department of Chemical Toxicology , TNO Prins Maurits Laboratory , P.O. Box 45, Rijswijk, NL-2280 AA, The Netherlands
| | - Gijs A. van der Marel
- b Leiden Institute of Chemistry , Gorlaeus Laboratories, University of Leiden , P.O. Box 9502, Leiden, NL-2300 RA, The Netherlands
| | - Jacques H. van Boom
- b Leiden Institute of Chemistry , Gorlaeus Laboratories, University of Leiden , P.O. Box 9502, Leiden, NL-2300 RA, The Netherlands
| | - Hendrik P. Benschop
- a Department of Chemical Toxicology , TNO Prins Maurits Laboratory , P.O. Box 45, Rijswijk, NL-2280 AA, The Netherlands
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Terinek M, Vasella A. Synthesis and evaluation of two mannosamine-derived lactone-type inhibitors of snail β-mannosidase. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2004.11.068] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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van den Berg RJBHN, Donker-Koopman W, van Boom JH, Aerts HMFG, Noort D. Design and synthesis of 2-acetamidomethyl derivatives of isofagomine as potential inhibitors of human lysosomal β-hexosaminidases. Bioorg Med Chem 2004; 12:891-902. [PMID: 14980601 DOI: 10.1016/j.bmc.2003.12.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2003] [Accepted: 12/22/2003] [Indexed: 10/26/2022]
Abstract
As part of a program towards the development of specific inhibitors of human lysosomal beta-hexosaminidase for use as chemical chaperones in therapy of G(M2) gangliosidosis related diseases, the synthesis of 2-acetamidomethyl derivatives of isofagomine has been undertaken. Key event in this synthesis is the conversion of a C-2 substituted gluconolactone derivative into the corresponding lactam, followed by reduction to the corresponding amine. The 1-N-imino-2 acetamidomethyl derivative 5 proved to be a rather selective inhibitor with a K(i) of 2.4 microM for homogenate of human spleen lysosomal beta-hexosaminidase.
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Affiliation(s)
- Richard J B H N van den Berg
- Leiden Institute of Chemistry, Gorlaeus Laboratories, University of Leiden, PO Box 9502, Leiden NL-2300 RA, The Netherlands
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Watson AA, Fleet GW, Asano N, Molyneux RJ, Nash RJ. Polyhydroxylated alkaloids -- natural occurrence and therapeutic applications. PHYTOCHEMISTRY 2001; 56:265-295. [PMID: 11243453 DOI: 10.1016/s0031-9422(00)00451-9] [Citation(s) in RCA: 542] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Over one hundred polyhydroxylated alkaloids have been isolated from plants and micro-organisms. These alkaloids can be potent and highly selective glycosidase inhibitors and are arousing great interest as tools to study cellular recognition and as potential therapeutic agents. However, only three of the natural products so far have been widely studied for therapeutic potential due largely to the limited commercial availability of the other compounds.
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Affiliation(s)
- A A Watson
- Molecular Nature Limited, Aberystwyth, Cardiganshire, UK
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