3316-45-8Relevant academic research and scientific papers
Flavonoid-related modulators of multidrug resistance: Synthesis, pharmacological activity, and structure-activity relationships
Ferté, Jacques,Kühnel, Jean-Marc,Chapuis, Geneviève,Rolland, Yves,Lewin, Guy,Schwaller, Marc A.
, p. 478 - 489 (2007/10/03)
A series of 28 flavonoid derivatives containing a N-benzylpiperazine chain have been synthesized and tested for their ability to modulate multidrug resistance (MDR) in vitro. At 5 μM, most compounds potentiated doxorubicin cytotoxicity on resistant K562/DOX cells. They were also able to increase the intracellular accumulation of JC-1, a fluorescent molecule recently described as a probe of P-glycoprotein-mediated MDR. This suggests that these compounds act, at least in part, by inhibiting P-glycoprotein activity. As in other studies, lipophilicity was shown to influence MDR- modulating activity but was not the only determinant. Diverse di- and trimethoxy substitutions on N-benzyl were examined and found to affect the activity differently. The most active compounds had a 2,3,4- trimethoxybenzylpiperazine chain attached to either a flavone or a flavanone moiety (13, 19, 33, and 37) and were found to be more potent than verapamil.
