A new and short fragment-based approach towards artificial (but "natural-based") complex polyphenols has been developed, exploiting the Ugi multicomponent reaction of phenol-containing simple substrates. The resulting library of compounds has been tested for its capacity to inhibit β-amyloid protein aggregation, as a possible strategy to develop new chemical entities to be used as prevention or therapy for Alzheimer's disease. Some of the members of this library have demonstrated, in thioflavin assays, a highly promising activity in inhibiting aggregation for two β-amyloid peptides: Aβ1-42 and the truncated AβpE3-42.
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Bioorg Chem
April 2020
Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt. Electronic address:
Using fragment-based design strategy, new pyridyl-indole hybrids 4a-y and indole intermediates 3a-e were synthesized using multicomponent one pot reaction. The synthesized compounds were subjected to screening for antimalarial activity against chloroquine sensitive (D6) and chloroquine resistant (W2) strains of Plasmodium falciparum. Several compounds exhibited antimalarial activity with IC values in the range of 1.
View Article and Find Full Text PDFFront Chem
January 2019
Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Genova, Italy.
Org Biomol Chem
November 2017
Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso 31, 16146 Genova, Italy.
A new and short fragment-based approach towards artificial (but "natural-based") complex polyphenols has been developed, exploiting the Ugi multicomponent reaction of phenol-containing simple substrates. The resulting library of compounds has been tested for its capacity to inhibit β-amyloid protein aggregation, as a possible strategy to develop new chemical entities to be used as prevention or therapy for Alzheimer's disease. Some of the members of this library have demonstrated, in thioflavin assays, a highly promising activity in inhibiting aggregation for two β-amyloid peptides: Aβ1-42 and the truncated AβpE3-42.
View Article and Find Full Text PDFJ Biomol NMR
December 2016
SZTE-MTA Lendület Foldamer Research Group, Institute of Pharmaceutical Analysis Department, University of Szeged, Somogyi u. 4, Szeged, 6720, Hungary.
Fragment-based drug design has been successfully applied to challenging targets where the detection of the weak protein-ligand interactions is a key element. H saturation transfer difference (STD) NMR spectroscopy is a powerful technique for this work but it requires pure homogeneous proteins as targets. Monoclonal antibody (mAb)-relayed N-GS STD spectroscopy has been developed to resolve the problem of protein mixtures and impure proteins.
View Article and Find Full Text PDFExpert Opin Drug Discov
May 2016
a 1 University of Groningen, A. Deusinglaan, Department of Drug Design, 1, Groningen 9700 AD, The Netherlands
Introduction: Protein-protein interactions (PPIs) are important targets for understanding fundamental biology and for the development of therapeutic agents. Based on different physicochemical properties, numerous pieces of software (e.g.
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