Application of natural phosphate modified with sodium nitrate in the synthesis of chalcones: a soft and clean method
作者:Saı̈d Sebti、Abderrahim Solhy、Rachid Tahir、Smahi Abdelatif、Saı̈d Boulaajaj、José A. Mayoral、José I. Garcı́a、José M. Fraile、Abdelali Kossir、Hammou Oumimoun
DOI:10.1016/s0021-9517(02)00017-9
日期:2003.1
of this solid in the Claisen–Schmidt condensation was studied and high yields were obtained with small amounts of catalyst. The reaction rate depends on the substitution in both benzaldehyde and acetophenone derivatives. The effect of the solvent, as well as the addition of water and ammonium salt, was investigated as well. The catalyst can be easily recovered and efficiently reused.
Synthetic Chalcone Derivatives as Inhibitors of Cathepsins K and B, and Their Cytotoxic Evaluation
作者:Suelem Demuner Ramalho、Aline Bernades、Giulio Demetrius、Caridad Noda-Perez、Paulo Cezar Vieira、Caio Yu dos Santos、James Almada da Silva、Manoel Odorico de Moraes、Kristiana Cerqueira Mousinho
DOI:10.1002/cbdv.201200344
日期:2013.11
(15) showed significant cytotoxicities. The most effective compound was 15, which showed high cytotoxic activity with an IC50 value lower than 1 μg/ml, and no selectivity on the tumor cells evaluated. Substituents at C(4) of ring B were found to be essential for cytotoxicity. In addition, it was also demonstrated that some of these chalcones are moderate inhibitors of cathepsinK and have no activity
A New Lewis Acid System Palladium/TMSCl for Catalytic Aldol Condensation of Aldehydes with Ketones
作者:Yulin Zhu、Yuanjiang Pan
DOI:10.1246/cl.2004.668
日期:2004.6
catalyzed the aldolcondensation reactions of different ketones with aldehydes in the presence of trimethylsilyl chloride (TMSCI). The following reactions were investigated: (1) aromaticaldehydes with cycloalkanones, (2) aromaticaldehydes with aromatic ketones, (3) cycloalkanones with aliphatic aldehydes, and (4) the self-condensation reactions of aliphatic aldehydes and cycloalkanones.
bifonazole and pyrrolnitrin, two compounds belonging to the class of antimycotic drugs. The synthesis of the title pyrroles has been performed starting from 1,3-diaryl-2-propen-1-ones, which were reacted with tosylmethyl isocyanide to give 3-aroyl-4-arylpyrroles. Reduction of the resulting compounds by lithiumaluminumhydride furnished the related alcohols, which were treated with 1,1'-carbonyldimidazole to
Inhibitory potential of some chalcones on cathepsins B, H and L
作者:Shweta Garg、Neera Raghav
DOI:10.1039/c5ra12856k
日期:——
Cathepsins, intracellular proteases, are known to be involved in a number of physiological processes such as degradation of extracellular proteins, prohormone processing, progressions of atherosclerosis etc.