3286-88-2Relevant academic research and scientific papers
The Natural Product Elegaphenone Potentiates Antibiotic Effects against Pseudomonas aeruginosa
Zhao, Weining,Cross, Ashley R.,Crowe-McAuliffe, Caillan,Weigert-Munoz, Angela,Csatary, Erika E.,Solinski, Amy E.,Krysiak, Joanna,Goldberg, Joanna B.,Wilson, Daniel N.,Medina, Eva,Wuest, William M.,Sieber, Stephan A.
, p. 8581 - 8584 (2019/05/28)
Natural products represent a rich source of antibiotics that address versatile cellular targets. The deconvolution of their targets via chemical proteomics is often challenged by the introduction of large photocrosslinkers. Here we applied elegaphenone, a largely uncharacterized natural product antibiotic bearing a native benzophenone core scaffold, for affinity-based protein profiling (AfBPP) in Gram-positive and Gram-negative bacteria. This study utilizes the alkynylated natural product scaffold as a probe to uncover intriguing biological interactions with the transcriptional regulator AlgP. Furthermore, proteome profiling of a Pseudomonas aeruginosa AlgP transposon mutant provided unique insights into the mode of action. Elegaphenone enhanced the elimination of intracellular P. aeruginosa in macrophages exposed to sub-inhibitory concentrations of the fluoroquinolone antibiotic norfloxacin.
Synthesis and structure-activity studies of novel orally active non-terpenoic 2,3-oxidosqualene cyclase inhibitors
Dehmlow, Henrietta,Aebi, Johannes D.,Jolidon, Synèse,Ji, Yu-Hua,Von der Mark, Elisabeth M.,Himber, Jacques,Morand, Olivier H.
, p. 3354 - 3370 (2007/10/03)
New orally active non-terpenoic inhibitors of human 2,3-oxidosqualene cyclase (hOSC) are reported. The starting point for the optimization process was a set of compounds derived from a fungicide project, which in addition to showing high affinity for OSC from Candida albicans showed also high affinity for human OSC. Common structural elements of these inhibitors are an amine residue and an electrophilic carbonyl C atom embedded in a benzophenone system, which are at a distance of about 10.7 ?. Considering that the keto moiety is in a potentially labile position, modifications of the substitution pattern at the benzophenone as well as annelated heteroaryl systems were explored. Our approach combined testing of the compounds first for increased binding affinity and for increased stability in vitro. Most promising compounds were then evaluated for their efficacy in lowering plasma total cholesterol (TC) and plasma low-density lipoprotein cholesterol (LDL-C) in hyperlipidemic hamsters. In this respect, the most promising compounds are the benzophenone derivative 1·fumarate and the benzo[d]-isothiazol 24·fumarate, which lowered TC by 40% and 33%, respectively.
