Dicationic Bis(9-methylphenazine-1-carboxamides): Relationships between Biological Activity and Linker Chain Structure for a Series of Potent Topoisomerase Targeted Anticancer Drugs
作者:Swarna A. Gamage、Julie A. Spicer、Graeme J. Finlay、Alistair J. Stewart、Peter Charlton、Bruce C. Baguley、William A. Denny
DOI:10.1021/jm0003283
日期:2001.4.1
reverse effects, with the R = Me analogue being more potent than the R = H one as well as being the most potent in the series [IC(50) in JL(C) cells 0.08 nM; superior to that for the clinical bis(naphthalimide) LU 79553]. Overall, the IC(50)s of analogues with linker chains (CH(2))(n)NH(CH(2))(m)NH(CH(2))(n) were inversely proportional to linker length. Constraining the rigidity of the linker chain by incorporating
双(9-甲基吩嗪-1-羧酰胺)通过各种不同的dicicic(CH(2))(n)()NR(CH(2))(m)NR(CH(2))(n)接头连接通过使9-甲基吩嗪-1-羧酸咪唑啉化物与适当的多胺反应,制备了长度(羧酰胺NN距离为11.0至18.4A)和刚性。评价了这些化合物在P388白血病,Lewis肺癌以及野生型(JL(C))和突变型(JL(A)和JL(D))形式的人Jurkat白血病中具有低水平的拓扑异构酶II的生长抑制特性(拓扑II)。这些化合物在抗性Jurkat品系中均具有小于1的IC(50)比,这与对topo II的抑制作用不是主要的作用机理相一致。由(CH(2))(2)NR(CH(2))(2)NR(CH(2))(2)接头连接的类似物是非常有效的细胞毒素,对人类细胞系具有选择性,但是绝对效能从R = H到R = Me急剧下降到R = Pr和Bu。相反,(CH(2))(2)NR(CH(2