Colabufo Nicola Antonio, Berardi Francesco, Perrone Roberto, Rapposelli Simona, Digiacomo Maria, Vanni Michael, Balsamo Aldo
Dipartimento farmacochimico, Universita degli Studi di Bari, Bari, Italy.
J Med Chem. 2008 Mar 13;51(5):1415-22. doi: 10.1021/jm701267q. Epub 2008 Feb 8.
Starting from lead compounds 12b and 28b, previously characterized as P-glycoprotein (P-gp) modulating agents, two series of new compounds were investigated. Compounds 14a, b and 15a, b displayed high P-gp modulating activity in the submicromolar range (EC 50 values from 0.25 to 0.80 microM). Moreover, amino derivatives 23- 27 showed EC 50 values ranging from 0.085 to 0.90 microM. In the pyridyl series, the best result has been obtained for 4-pyridyl derivative 17b (EC 50 = 0.85 microM). The best P-gp modulating agents 14a, b, 15a, b, and 23- 27 also have been studied for determining their breast cancer resistance protein (BCRP) inhibition activity. The results demonstrated that only the amino derivatives 23- 27 displayed moderate BCRP inhibition activity.