Synthesis and biological evaluation of lipophilic teicoplanin pseudoaglycon derivatives containing a substituted triazole function

publication · 3 years ago
by Zsolt Szűcs, Magdolna Csávás, Erzsébet Rőth, Anikó Borbás, Gyula Batta, Florent Perret, Eszter Ostorházi, Réka Szatmári, Evelien Vanderlinden, Lieve Naesens, Pál Herczegh (Semmelweis University, KU Leuven, University of Debrecen, Université Lyon)

A series of lipophilic teicoplanin pseudoaglycon derivatives, including alkyl-, aryl-, calixarene- and protected sugar-containing conjugates, were prepared using azide-alkyne click chemistry. Out of the conditions applied, the CuSO4-ascorbate reagent system proved to be more efficient than the Cu(I)I-Et3N-mediated reaction. Some of the new compounds have high in vitro activity against glycopeptide-resistant Gram-positive bacteria, including vanA-positive Enterococcus faecalis. A few of them also display promising in vitro anti-influenza activity.

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