isoindolines substituted with cyano and amidino benzimidazoles and benzothiazoles were synthesized as new potential anti-cancer agents. The new structures were evaluated for antiproliferative activity, cell cycle changes, cell death, as well as DNA binding and topoisomerase inhibition properties on selected compounds. Results showed that all tested compounds exerted antitumor activity, especially
In this manuscript the synthesis and biological activity of novel heterocyclic derivatives of benzofuran-2-carboxamides 3a-j and 6a-f is presented. Biological evaluation in vitro revealed that only few compounds exerted concentration-depended antiproliferative effects on tumour cell lines at micromolar concentrations. In particular, 2-imidazolynyl substituted compound 6f showed selectivity on SK-BR-3 cell line while 2-N-acetamidopyridyl substituted 3h and 2-imidazolynyl substituted amide 3i showed selective concentration-dependent antiproliferative effects on SW620 cell line. Compounds 3h and 61 induced apoptosis while compound 3i acted through a cell death mechanism other than apoptosis. (C) 2012 Elsevier Masson SAS. All rights reserved.
subunits in different positions led to different cytotoxicproperties. The strongest selective activity against HeLa cells was observed for the benzothiazole derivative 4d with 2-imidazolinyl group at the benzo[b]thiophene subunit with a corresponding IC50 = 1.16 μM. Additionally, several biological experiments were performed to explain the mode of biological action. Fluorescence microscopy evidenced nuclear
在该手稿设计中,介绍并描述了带有苯并咪唑或苯并噻唑亚基的新型2-咪唑啉基取代的苯并[ b ]噻吩-2-羧酰胺的合成及其生物学活性。在一组人类癌细胞系上体外评估抗增殖活性。与5-氟尿嘧啶相比,受试化合物显示出中等活性,而对正常成纤维细胞的细胞毒性较低。2-咪唑啉基取代基在不同位置的杂芳族亚基的变化导致不同的细胞毒性。观察到在苯并[ b]上带有2-咪唑啉基的苯并噻唑衍生物4d对HeLa细胞的最强选择性活性。]噻吩亚基,其相应的IC 50 = 1.16μM。另外,进行了几次生物学实验以解释生物学作用的模式。荧光显微镜证实了化合物3a,4a和4c的核亚细胞定位。此外,详细的DNA结合研究证实了衍生物4a和4c具有很强的DNA凹槽结合力,而DNase I足迹实验证明了化合物4c在AT富集侧的序列选择性结合。此外,拓扑异构酶抑制作用是针对化合物4a-4c。