Effect of side chain location in (2-aminoethyl)aminomethyl-2-phenylquinolines as antitumor agents
作者:Yuji Mikata、Mika Yokoyama、Shun-ichiro Ogura、Ichiro Okura、Masafumi Kawasaki、Mizuo Maeda、Shigenobu Yano
DOI:10.1016/s0960-894x(98)00192-9
日期:1998.5
Three new derivatives of 2-phenylquinoline having an (2-aminoethyl)aminomethyl group in 7-, 6-, or 4'(para position of 2-phenyl ring) positions of aromatic system have been prepared. The antitumor activity of these compounds together with 8- or 4-substituted isomers against the HeLa cell is in the order of 8- > 7- > 4- approximate to 6- approximate to 4'-substituted ones, which is almost in good agreement with that of DNA-binding ability evaluated by means of DNA-titration of UV-VIS specrra, DNA melting experiment, and ethidium displacement assay. Two representative compounds (8- and 4-isomers) are confirmed to have an ability to intercalate into double stranded DNA by topoisomerase I superhelix unwinding assay. (C) 1998 Elsevier Science Ltd. All rights reserved.