Výsledky vyhledávání - "Martin Kleban"

Amino(hydroxymethyl)cyclopentanetriols, an Emerging Class of Potent Glycosidase Inhibitors—Part I: Synthesis and Evaluation ofβ-D-Pyranoside Analogues in themanno, gluco, galacto, and GlcNAc Series

Autor: Jörg N. Greul, Volker Jäger, Jing Li, Petra Hilgers, Sylviane Picasso, Pierre Vogel, Martin Kleban, Rolf Kugler

Publikováno v: ChemBioChem. 2:365-368

Keywords: carbohydrate mimics ; cycloaddition ; glycosidases ; hydrolases ; inhibitors ; Mannostatin-a ; convenient preparation ; carbocyclic compounds ; mannosidase ; derivatives ; route ; monosaccharides ; transformations ; cyclopentanes ; catalysi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4eeae79aab970d8a420df3ff7658b1b8
https://doi.org/10.1002/1439-7633(20010504)2:5<365::aid-cbic365>3.0.co

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Synthesis of (1→6)-C-oligogalactosides by iterative Wittig olefination

Autor: Alessandro Dondoni, Martin Kleban, Helene Zuurmond, Alberto Marra

Publikováno v: Tetrahedron Letters. 39:7991-7994

Carbon-linked β- d -(1→6)-di-, tri- and tetragalactopyranosides have been synthesized by an iterative Wittig olefination employing a galactosylmethylene phosphorane as building block.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3bcf6e7bf9176b0a64fc0f62cf3e1ec
https://doi.org/10.1016/s0040-4039(98)01739-0

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Computational and experimental studies of di- and tetrasubstituted calix[4]arenes

Autor: Alessandro Dondoni, Harold D. Banks, Alberto Marra, Martin Kleban

Publikováno v: Chirality. 14(2-3)

Calixarenes are molecular bowls or baskets that have been demonstrated to serve as hosts for cations, anions, and neutral molecules. The central cavity and scaffolding of various functionalities on the upper and lower rims establishes this class of c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c188a07c1795abe3889e71c2f11c32f
https://pubmed.ncbi.nlm.nih.gov/11835562

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Glycoside-clustering round calixarenes toward the development of multivalent carbohydrate ligands. synthesis and conformational analysis of calix[4]arene O- and C-glycoconjugates

Autor: Alessandro Dondoni, Harold D. Banks, and Alberto Marra, Xubo Hu, Martin Kleban

Bis- and tetra-O- and C-glycosyl calixarenes (calixsugars) have been prepared by tethering carbohydrate moieties to a tetrapropoxycalix[4]arene scaffold through alkyl chains. Two methodologies have been employed. One consisted of the stereoselective

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cce8b9fede5ba22d0c5184bd717418e
http://hdl.handle.net/11392/1201477

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Iodine-Nitrogen Tetroxide

Autor: Martin Kleban, Volker Jäger

Publikováno v: e-EROS Encyclopedia of Reagents for Organic Synthesis

(I2) [7553-56-2] I2 (MW 253.80) InChI = 1S/I2/c1-2 InChIKey = PNDPGZBMCMUPRI-UHFFFAOYSA-N (N2O4) [10544-72-6] N2O4 (MW 92.02) InChI = 1S/N2O4/c3-1(4)2(5)6 InChIKey = WFPZPJSADLPSON-UHFFFAOYSA-N (adds to carbon–carbon multiple bonds to form the corr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aff542c34d31a8d2b8a35c3bec697bf0
https://doi.org/10.1002/047084289x.ri017

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The assembly of carbon-linked calixarene-carbohydrate structures (C- calixsugars) by multiple Wittig olefination

Autor: Martin Kleban, Alessandro Dondoni, Alberto Marra

The Wittig olefination of the O-propyl tetraformylcalix[4]arene 1 with sugar phosphoranes and reduction of the resulting alkenes lead to calixarene derivatives holding three and four carbohydrate units through an ethylene linkage (C-calixsugars).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a670697784b55da4b8014591807716f
http://hdl.handle.net/11392/1201452

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