The Novel [4,5-e][1,3]Diazepine-4,8-dione and Acyclic Carbamoyl Imino-Ureido Derivatives of Imidazole: Synthesis, Anti-Viral and Anti-Tumor Activity Evaluations
作者:Karlo Wittine、Kristina Poljak、Matea Kovač、Damjan Makuc、Janez Plavec、Jan Balzarini、Tamara Martinović、Sandra Pavelić、Krešimir Pavelić、Mladen Mintas
DOI:10.3390/molecules181113385
日期:——
In the present paper, we report on the synthesis, and in vitro antiviral and cytostatic activities of a series of novel imidazole[4,5-e][1,3]diazepine-4,8-dione (compounds 9–11) and acyclic carbamoyl imino-ureido imidazole (compounds 12 and 13) derivatives. These new type of chemical entities showed no significant activity on the broad spectrum of DNA and RNA viruses. Results of antiproliferative assays performed on a panel of selected human tumor cell lines revealed that only compounds 1 and 5 showed moderate and selective cytostatic effect against HeLa cells (IC50 = 24 and 32 µM) with no concomitant cytotoxic effects on human normal fibroblasts (BJ). Importantly, an imidazole derivative containing a pyrrolidine moiety linked via an ethylenic spacer (3) showed a selective cytostatic effect toward cervical carcinoma (HeLa) cells (IC50 = 9.5 µM) with no apparent cytotoxicity on human normal fibroblasts (BJ). This compound can be therefore considered as a potential anti-tumor lead compound for further synthetic structure optimization.
本文报告了一系列新型咪唑[4,5-e][1,3]二氮杂卓-4,8-二酮(化合物 9-11)和无环氨基甲酰亚氨基脲咪唑(化合物 12 和 13)衍生物的合成、体外抗病毒和细胞抑制活性。这些新型化学实体对广谱 DNA 和 RNA 病毒无明显活性。对一组精选的人类肿瘤细胞系进行的抗增殖试验结果表明,只有化合物 1 和 5 对 HeLa 细胞表现出中等程度的选择性细胞抑制作用(IC50 = 24 和 32 µM),而对人类正常成纤维细胞(BJ)则没有相应的细胞毒性作用。重要的是,一种含有通过乙烯基间隔物连接的吡咯烷分子的咪唑衍生物(3)显示出对宫颈癌(HeLa)细胞的选择性细胞抑制作用(IC50 = 9.5 µM),而对人类正常成纤维细胞(BJ)没有明显的细胞毒性。因此,该化合物可作为潜在的抗肿瘤先导化合物,用于进一步的合成结构优化。