Blattner, Regine; Furneaux, Richard H.; Kemmitt, timothy, Journal of the Chemical Society. Perkin transactions I, 1994, # 23, p. 3411 - 3422
作者:Blattner, Regine、Furneaux, Richard H.、Kemmitt, timothy、Tyler, Peter C.、Ferrier, Robert J.、Tiden, Anna-Karin
DOI:——
日期:——
‘Click chemistry’ in CuI-zeolites: a convenient access to glycoconjugates
作者:Aurélien Alix、Stefan Chassaing、Patrick Pale、Jean Sommer
DOI:10.1016/j.tet.2008.06.086
日期:2008.9
Zeolites modified with Cu-I ions are efficient catalyst for 'click' reactions involving carbohydrates and aminoacid derivatives. Glycopeptides and oligosaccharides mimics as well as multivalent carbohydrate derivatives have been obtained in good to high yield using heterogeneous Cu-I-modified zeolite catalysts. Contrarily to expectation, pore sizes and internal shapes within zeolites were not a limitation and large glucosyl ditriazoles, disaccharide triazoles, and glucosylated triazolylaminoacids could easily be obtained. Such Cu-I-zeolite heterogeneous catalysts greatly facilitated products recovery, through an easy filtration-solvent evaporation sequence, thus offering a convenient alternative to current methods. (C) 2008 Elsevier Ltd. All rights reserved.
A convenient synthesis of orthogonally protected 2-deoxystreptamine (2-DOS) as an aminocyclitol scaffold for the development of novel aminoglycoside antibiotic derivatives against bacterial resistance
作者:Claude Bauder
DOI:10.1039/b804784g
日期:——
development of new aminoglycoside analogues to reduce the emergence of bacterial resistance has become a topic of high interest. We describe here a rapid and facile access to orthogonally protected 2-deoxystreptamine (2-DOS), a meso-diaminocyclitol known to be a pivotal component of most active aminoglycosides. Our synthetic approach started from highly protected methyl alpha-D-glucopyranoside which in turn