Quinolin-2-one-pyrimidine Hybrids Acting as Potent Reversal Agents on the P-gp-mediated Multidrug Resistance: Insights into Structure-activity Relationships and the Binding Mode
Abstract:P-gp-associated multidrug resistance (MDR) is a major impediment to the success of chemotherapy. With the aim of finding non-toxic and effective P-gp inhibitors, we investigated a panel of quinolin-2-one-pyrimidine hybrids. Among the active compounds, two of them significantly increased intracellular doxorubicin and rhodamine 123 accumulation by inhibiting the efflux mediated by P-gp and restored doxorubicin toxicity at nanomolar range. Structure-activity relationships showed that the number of methoxy groups,… Show more
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