Discovery of derivatives of 6(7)-amino-3-phenylquinoxaline-2-carbonitrile 1,4-dioxides: novel, hypoxia-selective HIF-1α inhibitors with strong antiestrogenic potency
作者:Galina I. Buravchenko、Alexander M. Scherbakov、Lyubov G. Dezhenkova、Evgeny E. Bykov、Svetlana E. Solovieva、Alexander A. Korlukov、Danila V. Sorokin、Lianet Monzote Fidalgo、Andrey E. Shchekotikhin
DOI:10.1016/j.bioorg.2020.104324
日期:2020.11
increases the cytotoxicity of compounds 5a and 6a under both normoxic and hypoxic conditions. However, the most hypoxia-selective derivatives were non-halogenated 7-aminosubstituted 3-phenylquinoxaline-2-carbonitrile 1,4-dioxides 3a–j. Of the 32 novel synthesized derivatives, approximately 20 of the 6(7)-amino-3-phenylquinoxaline-2-carbonitrile 1,4-dioxides demonstrated high antiproliferative potency
在本文中,我们描述了在位置6或7带有环状二胺残基的3-苯基喹喔啉-2-腈1,4-二氧化物的合成。合成是基于卤素的亲核取代。与参考药物替拉帕明对乳腺腺癌细胞系(MCF7,MDA-MB-231)相比,所有合成的6(7)-氨基喹喔啉-2-甲腈1,4-二氧化物3-6表现出更高的细胞毒性和低氧选择性。二胺残基的结构和位置显着影响喹喔啉-2-腈1,4-二氧化物的抗增殖性能。在4a的喹喔啉环的7位引入卤素原子会大大增加化合物5a和6a的细胞毒性在常氧和低氧条件下。然而,最缺氧的选择性衍生物是未卤代的7-氨基取代的3-苯基喹喔啉-2-腈1,4-二氧化物3a–j。在这32种新的合成衍生物中,约20种6(7)-氨基-3-苯基喹喔啉-2-甲腈1,4-二氧化物显示出对野生型白血病细胞K562和耐药亚株K562 / 4的高抗增殖潜能。 p-糖蛋白(p-gp)的表达与参考药物阿霉素相比,后者对K562 / 4细胞的活