25616-02-8Relevant articles and documents
The First Dimeric Derivatives of the Glycopeptide Antibiotic Teicoplanin
Batta, Gyula,Bereczki, Ilona,Borbás, Anikó,Herczegh, Pál,K?vér, Katalin E.,Nagy, Tamás Milán,Ostorházi, Eszter,Sz?cs, Zsolt
, (2022/01/24)
Various dimeric derivatives of the glycopeptide antibiotic teicoplanin were prepared with the aim of increasing the activity of the parent compound against glycopeptide-resistant bacteria, primarily vancomycin-resistant enterococci. Starting from teicoplanin, four covalent dimers were prepared in two orientations, using an α,ω-bis-isothiocyanate linker. Formation of a dimeric cobalt coordination complex of an N-terminal L-histidyl derivative of teicoplanin pseudoaglycone has been detected and its antibacterial activity evaluated. The Co(III)-induced dimerization of the histidyl derivative was demonstrated by DOSY experiments. Both the covalent and the complex dimeric derivatives showed high activity against VanA teicoplanin-resistant enterococci, but their activity against other tested bacterial strains did not exceed that of the monomeric compounds.
Molecular recognition of a tris(histidine) ligand
Sun, Shuguang,Saltmarsh, Jennifer,Mallik, Sanku,Thomasson, Kathryn
, p. 519 - 520 (2007/10/03)
Design and synthesis of a tri-Hg2+ complex to selectivity recognize a tris(histidine) ligand is presented.