Synthesis and cdc25B inhibitory activity evaluation of chalcones
作者:Fei Zhao、Qing-Jie Zhao、Jing-Xia Zhao、Da-Zhi Zhang、Qiu-Ye Wu、Yong-Sheng Jin
DOI:10.1007/s10600-013-0563-7
日期:2013.5
A library of sixty-five chalcones was prepared for screening against the protein phosphatase, cdc25B. From this library, thirteen compounds were found having good inhibitory activity. Two compounds have excellent activity and can be used for the design of more potent antiproliferative agents.
Superior anticancer activity of halogenated chalcones and flavonols over the natural flavonol quercetin
作者:Tatiana A. Dias、Cecília L. Duarte、Cristovao F. Lima、M. Fernanda Proença、Cristina Pereira-Wilson
DOI:10.1016/j.ejmech.2013.04.064
日期:2013.7
chalcones whereas for flavonol derivatives the best performance was registered for the 4-substituted derivatives. Flow cytometry analysis showed that compounds 3p and 4o induced cell cycle arrest and apoptosis as demonstrated by increased S, G2/M and sub-G1 phases. These data were corroborated by western blot and fluorescence microscopy analysis. In summary, halogenated chalcones and flavonols were successfully
Structure–activity relationships of antileishmanial and antimalarial chalcones
作者:Mei Liu、Prapon Wilairat、Simon L Croft、Agnes Lay-Choo Tan、Mei-Lin Go
DOI:10.1016/s0968-0896(03)00233-5
日期:2003.7
lipophilic chalcones, in particular those with 4'-hydroxyl-substituted B rings and hetero/polyaromatic A rings. In contrast, chalcones with good antimalarial activity have alkoxylated B rings and electron-deficient A rings. Visualization of the steric and electrostatic fields generated from comparative molecular field analysis (CoMFA) indicate that the ring A of chalcones make a more significant contribution
Ruthenium-NHC-Catalyzed Asymmetric Hydrogenation of Flavones and Chromones: General Access to Enantiomerically Enriched Flavanones, Flavanols, Chromanones, and Chromanols
作者:Dongbing Zhao、Bernhard Beiring、Frank Glorius
DOI:10.1002/anie.201302573
日期:2013.8.5
Two to four! Readily available flavones and chromones were efficiently converted into four valuable chiral classes of O‐heterocycles—flavanones, chromanones, flavanols, and chromanols—by means of an enantioselective Ru/NHC‐catalyzed hydrogenation process (see scheme; NHC=N‐heterocyclic carbene, PCC=pyridinium chlorochromate).