Cyclodextrin derivatives are synthesized as membrane-disrupting agents via a microwave-assisted Huisgen reaction. Their ability to permeabilize bacterial membranes depends on the amino substituents and an appropriate balance of hydrophobicity and hydrophilicity, thus enabling the preparation of derivatives with selective toxicity against bacteria.
The emergence of drug-resistant bacteria has led to the high demand for new antibiotics. In this report, we investigated membrane-active antimicrobial β-cyclodextrins. These contain seven amino-modified alkyl groups on a molecule, which act as functional moieties to permeabilize bacterial cell membranes. The polyfunctionalization of cyclodextrins was achieved through a click reaction assisted by microwave
Targeting a Large Active Site: Structure‐Based Design of Nanomolar Inhibitors of
<i>Trypanosoma brucei</i>
Trypanothione Reductase
作者:Raoul De Gasparo、Ondrej Halgas、Dora Harangozo、Marcel Kaiser、Emil F. Pai、R. Luise Krauth‐Siegel、François Diederich
DOI:10.1002/chem.201901664
日期:2019.9.2
73 nm, which is fully selective against human glutathione reductase (hGR). The best ligands exhibited in vitro IC50 values (half-maximal inhibitory concentration) against the HAT pathogen, T. brucei rhodesiense, in the mid-nanomolar range, reaching down to 50 nm. X-Rayco-crystalstructures confirmed the binding mode of the ligands and revealed the presence of a HEPES buffer molecule in the large active