Provided herein are compositions and methods for treating or preventing infection.
本文提供了用于治疗或预防感染的组合物和方法。
Methods and compositions for treating infection
申请人:UNIVERSITY OF ROCHESTER
公开号:US10004701B2
公开(公告)日:2018-06-26
Provided herein are compositions and methods for treating or preventing infection.
本文提供了用于治疗或预防感染的组合物和方法。
US3946022A
申请人:——
公开号:US3946022A
公开(公告)日:1976-03-23
Repurposing the Antihistamine Terfenadine for Antimicrobial Activity against <i>Staphylococcus aureus</i>
作者:Jessamyn I. Perlmutter、Lauren T. Forbes、Damian J. Krysan、Katherine Ebsworth-Mojica、Jennifer M. Colquhoun、Jenna L. Wang、Paul M. Dunman、Daniel P. Flaherty
DOI:10.1021/jm5010682
日期:2014.10.23
Staphylococcus aureus is a rapidly growing health threat in the U.S., with resistance to several commonly prescribed treatments. A high-throughput screen identified the antihistamine terfenadine to possess, previously unreported, antimicrobial activity against S. aureus and other Gram-positive bacteria. In an effort to repurpose this drug, structure-activity relationship studies yielded 84 terfenadine-based analogues with several modifications providing increased activity versus S. aureus and other bacterial pathogens, including Mycobacterium tuberculosis. Mechanism of action studies revealed these compounds to exert their antibacterial effects, at least in part, through inhibition of the bacterial type II topoisomerases. This scaffold suffers from hERG liabilities which were not remedied through this round of optimization; however, given the overall improvement in activity of the set, terfenadine-based analogues provide a novel structural class of antimicrobial compounds with potential for further characterization as part of the continuing process to meet the current need for new antibiotics.
Identification of Terfenadine as an Inhibitor of Human CD81-Receptor HCV-E2 Interaction: Synthesis and Structure Optimization
Terfenadine (4-[4-(hydroxydiphenylmethyl)-1-piperidyl]-1-(4-tert-butylphenyl)-butan-1-ol) was identified in a biological screening to be a moderate inhibitor (27% inhibition) of the CD81-LEL–HCV-E2 interaction. To increase the observed biologicalactivity, 63 terfenadine derivates were synthesized via microwave assisted nucleophilicsubstitution. The prepared compounds were tested for their inhibitory potency by means ofa fluorescence labeled antibody assay using HUH7.5 cells. Distinct structure-activityrelationships could be derived. Optimization was successful, leading to 3g, identfied as themost potent compound (69 % inhibition). Experiments with viral particles revealed thatthere might be additional HCV infection reducing mechanisms.