Optimized Palladium(0)-catalyzed Suzuki Cross-coupling Reaction of Polystyrene-supported Selenenyl Flavanones: A Convenient Preparation of Biaryl-chromen-4-one
作者:E Tang、Wen Li、Zhangyong Gao、Lianpeng Zhang、Qiushi Ma
DOI:10.1002/cjoc.201280023
日期:2012.3
Application of the Suzuki cross‐couplingreaction for efficient synthesis of diverse substituted biaryl‐chromen‐4‐ones using an optimized palladium(0) catalyst system is reported. The coupling of arylboronic acids with the resin‐bound bromoflavanones which were prepared by organoselenium‐induced regioselective intramolecular cyclization of bromo‐2‐hydroxylchalcones proceeded smoothly. Biaryl‐chromen‐4‐ones
Flavones as isosteres of 4(1H)-quinolones: Discovery of ligand efficient and dual stage antimalarial lead compounds
作者:Tiago Rodrigues、Ana S. Ressurreição、Filipa P. da Cruz、Inês S. Albuquerque、Jiri Gut、Marta P. Carrasco、Daniel Gonçalves、Rita C. Guedes、Daniel J.V.A. dos Santos、Maria M. Mota、Philip J. Rosenthal、Rui Moreira、Miguel Prudêncio、Francisca Lopes
DOI:10.1016/j.ejmech.2013.09.008
日期:2013.11
diverse set of flavones, isosteric to 4(1H)-quinolones, were prepared and profiled for their antiplasmodial activity against the blood stage of P. falciparum W2 strain, and the liver stage of the rodent parasite Plasmodium berghei. Ligand efficient leads were identified as dualstage antimalarials, suggesting that scaffold optimization may afford potent antiplasmodial compounds.