Novel Cyano- and <i>N</i>-Isopropylamidino-Substituted Derivatives of Benzo[<i>b</i>]thiophene-2-carboxanilides and Benzo[<i>b</i>]thieno[2,3-<i>c</i>]quinolones: Synthesis, Photochemical Synthesis, Crystal Structure Determination, and Antitumor Evaluation. 2
作者:Ivana Jarak、Marijeta Kralj、Lidija Šuman、Gordana Pavlović、Jasna Dogan、Ivo Piantanida、Mladen Žinić、Krešimir Pavelić、Grace Karminski-Zamola
DOI:10.1021/jm049541f
日期:2005.4.1
Derivatives of 3-chlorobenzo[b]thiophene-2-carboxanilides and their "cyclic" analogues benzo[b]thieno[2,3-c]quinolones were synthesized. Spectroscopic study of the interactions of some representatives of "cyclic" derivatives and their "acyclic" precursors with ds-DNA/RNA supported strong intercalative binding of the former and weak nonintercalative binding of the latter group of compounds. All tested
合成了3-氯苯并[b]噻吩-2-甲酰苯胺的衍生物及其“环状”类似物苯并[b]噻吩并[2,3-c]喹诺酮。光谱研究“环状”衍生物及其“非环状”前体的某些代表与ds-DNA / RNA的相互作用,支持前者化合物的强嵌入结合和后者化合物的弱非嵌入结合。所有测试的化合物对一系列人类肿瘤细胞和正常细胞系均显示出一定的抗增殖作用。在这些化合物中,具有一种a基取代基的化合物显示出最佳效果。活性最高的苯并[b]噻吩并[2,3-c]喹诺酮类药物诱导明显的细胞周期S和G2 / M阻滞,从而导致细胞凋亡。这些结果强烈表明这些化合物可能充当拓扑异构酶的“毒药”,与研究的衍生物“无环”基团相反,这与它们与ds-DNA / RNA结合的插入模式非常吻合。图6a和6d通过抑制肿瘤细胞的生长而表现出最佳的选择性,但不抑制正常的成纤维细胞。