Antioxidative and antiproliferative activities of novel pyrido[1,2-a]benzimidazoles
作者:Martina Tireli、Kristina Starčević、Tamara Martinović、Sandra Kraljević Pavelić、Grace Karminski-Zamola、Marijana Hranjec
DOI:10.1007/s11030-016-9702-y
日期:2017.2
A series of pyrido[1,2-a]benzimidazoles has been designed, and novel examples are synthesized and evaluated for their potential antiproliferative activity against four human tumour cell lines—cervical (HeLa), colorectal (SW620), breast (MCF-7) and hepatocellular carcinoma (HepG2). In addition, their antioxidative potency has been evaluated by in vitro spectrophotometric assays. Preliminary structure–activity
设计了一系列吡啶并[1,2- a ]苯并咪唑,并合成了新的实例,并评估了它们对四种人类肿瘤细胞系(宫颈癌(HeLa),结直肠癌(SW620),乳腺癌(MCF-7)的潜在抗增殖活性)和肝细胞癌(HepG2)。此外,它们的抗氧化能力已通过体外分光光度法进行了评估。讨论了合成化合物之间的初步结构-活性关系。其抗氧化能力的评估表明,两种化合物(25和26)具有良好的还原特性和清除自由基的活性。对于化合物25观察到在单位数微摩尔范围内的选择性抗增殖作用在MCF-7 \((\ hbox IC} _ 50} = 6 \,\ upmu} \ hbox M})\\)和HeLa \((\ hbox IC} _ 50} = 8 \, \ upmu} \ hbox M})\)细胞系,与标准的5-氟尿嘧啶和顺铂相当。化合物25的自由基清除活性和抗增殖活性的结合使该化合物成为进一步优化的潜在先导候选物。