Design, synthesis, and biological evaluation of thiophene analogues of chalcones
摘要:
Chalcones are characterized by possessing an enone moiety between two aromatic rings. A series of chalcone-like agents, in which the double bond of the enone system is embedded within a thiophene ring, were synthesized and evaluated for antiproliferative activity and inhibition of tubulin assembly and colchicine binding to tubulin. The replacement of the double bond with a thiophene maintains antiproliferative activity and therefore must not significantly alter the relative conformation of the two aryl rings. The synthesized compounds were found to inhibit the growth of several cancer cell lines at nanomolar to low micromolar concentrations. In general, all compounds having significant antiproliferative activity inhibited tubulin polymerization with an IC50 < 2 mu M. Several of these compounds caused K562 cells to arrest in the G2/M phase of the cell cycle. (C) 2008 Elsevier Ltd. All rights reserved.
On the Regio and Stereo Selective Formylations of Acyclic Alpha Methylene Ketones towards Vilsmeier Haack Reagent
作者:Arindam Chakraborty、Jayanta K. Ray
DOI:10.1080/00397919508015433
日期:1995.6
The regio and stereo selectivities of Vilsmeier Haack reaction of ketomethylene compounds have been predicted. The possible mechanistic pathway has also been proposed.