Novel DNA fluorescence probes based on 2-thioxo-tetrahydro-4H-imidazol-4-ones: synthetic and biological studies
摘要:
An efficient method for the liquid-phase synthesis of 3,5-disubstituted thiohydantoins has been developed. This new class of substituted thiohydantoins was tested as DNA fluorescence probes. Anthracene-substituted thiohydantoin undergoes a change in fluorescence in the presence of DNA. (C) 2011 Elsevier Ltd. All rights reserved.
synthesized compounds, we identified a panel of active inhibitors with Ki values towards one or two chymotrypsin-like activities of proteasome (β5c) and immunoproteasome (β5i and β1i subunits) in the low micromolar range. Docking studies suggested a unique binding mode of the molecules in the catalytic site of immunoproteasome proteolytic subunits.
Design and evaluation of non-carboxylate 5-arylidene-2-thioxo-4-imidazolidinones as novel non-competitive inhibitors of protein tyrosine phosphatase 1B
Proteintyrosinephosphatase 1B (PTP1B) acts as a negative regulator of insulin and leptin signalling and is crucially involved in the development of type 2 diabetes mellitus, obesity, cancer and neurodegenerative diseases. Pursuing our efforts to identify PTP1B inhibitors endowed with drug-like properties, we designed and evaluated 3-aryl-5-arylidene-2-thioxo-4-imidazolidinones (7) as a novel class