Structures of the 4-aminoquinoline derivatives used in this study. (A) TDR 58845, N1-(7-chloro-quinolin-4-yl)-2-methyl-propane-1,2-diamine; (B) TDR 58846, N1-(7-chloro-quinolin-4-yl)-2,N2,N2-trimethylpropane-1,2-diamine; (C) chloroquine, N4-(7-chloro-quinolin-4-yl)-N1,N1-diethyl-pentane-1,4-diamine.