Antitumor agents. Part 226: synthesis and cytotoxicity of 2-phenyl-4-quinolone acetic acids and their esters.

2-Phenyl-4-quinolone acetic acids and their esters were synthesized and evaluated for interaction with tubulin and for cytotoxicity against a panel of human tumor cell lines. 2-Phenyl- and 2-(2'-fluorophenyl)-4-quinolone-8-acetic acids (11 and 12) displayed potent cytotoxicity with ED(50) values at nanomolar concentrations, but had minimal activity against… CONTINUE READING