"10.1016/j.bmcl.2015.05.018"^^; "Hemmer M, Krawczyk S, Simon I, Hilgeroth A.: Discovery of substituted 1,4-dihydroquinolines as novel promising class of P-glycoprotein inhibitors: First structure-activity relationships and bioanalytical studies. Bioorg Med Chem Lett, Volume 25 (15), 2015"^^; ; "26048803"^^ .