Title compounds possessing a variety of substituents are systematically prepared by means of Meerwein arylation of benzene-1,4-dione. Synthetic aspects and their MNDO calculation-based interpretation are described.
Planar Chiral Rhodium Complexes of 1,4‐Benzoquinones
作者:Nikita M. Ankudinov、Yulia V. Nelyubina、Dmitry S. Perekalin
DOI:10.1002/chem.202200195
日期:2022.3.28
Chiral rhodiumcomplexes are widely used in asymmetric catalysis. Herein we describe a new approach to such chiral complexes featuring the intrinsically achiral benzoquinone ligands. The synthesis was achieved by the face-selective coordination of 2,5-substituted benzoquinones with rhodium bearing the readily available oxazoline-phenolate ligand. This chiral auxiliary ligand was subsequently replaced
Synthesis and evaluation of arylquinones as BACE1 inhibitors, β-amyloid peptide aggregation inhibitors, and destabilizers of preformed β-amyloid fibrils
作者:Andrea Ortega、Ángela Rincón、Karim L. Jiménez-Aliaga、Paloma Bermejo-Bescós、Sagrario Martín-Aragón、María Teresa Molina、Aurelio G. Csákÿ
DOI:10.1016/j.bmcl.2011.03.023
日期:2011.4
BACE1 activity, inhibition of A beta aggregation, and disaggregation of preformed A beta fibrils constitute the three major targets in the development of small-molecule lipophilic new drugs for the treatment of Alzheimer's disease (AD). Quinones are widely distributed among natural products and possess relevant and varied biological activities including antitumor and antibiotic, inhibition of HIV-1 reverse transcriptase, antidiabetic, or COX-inhibition, among others. We report herein the interaction of several arylquinones and their derivatives with the amyloidogenic pathway of the amyloid precursor protein processing. Our studies put forward that these compounds are promising candidates in the development of new drugs which are effective simultaneously towards the three major targets of AD. (C) 2011 Elsevier Ltd. All rights reserved.