Syntheses, characterization, and anti-cancer activities of pyridine-amide based compounds containing appended phenol or catechol groups
作者:AFSAR ALI、DEEPAK BANSAL、NAGENDRA K KAUSHIK、NEHA KAUSHIK、EUN HA CHOI、RAJEEV GUPTA
DOI:10.1007/s12039-014-0671-3
日期:2014.7
Several pyridine-amide compounds appended with phenol/catechol groups are synthesized. These compounds consist of protected or deprotected phenol/catechol groups and offer pyridine, amide, and phenol/catechol functional groups. All compounds have been well-characterized by various spectroscopic methods, elemental analysis, thermal studies, and crystallography. The biological activities of all compounds were investigated while a few compounds significantly decreased the metabolic viability, growth and clonogenicity of T98G cells in dose dependent manner. Accumulation of ROS was observed in T98G cells, which displayed a compromised redox status as evident from increased cellular Caspase 3/7 activity and formation of micronuclei. The in silico pharmacokinetic studies suggest that all compounds have good bioavailability, water solubility and other drug-like parameters. A few compounds were identified as the lead molecules for future investigation due to their: (a) high activity against T98G brain, H-460 lung, and SNU-80 thyroid cancer cells; (b) low cytotoxicity in non-malignant HEK and MRC-5 cells; (c) low toxic risks based on in silico evaluation; (d) good theoretical oral bioavailability according to Lipinski ‘rule of five′ pharmacokinetic parameters; and (e) better drug-likeness and drug-score values.
合成了几种带有酚/儿茶酚基团的吡啶酰胺化合物。这些化合物包括已保护或未保护的酚/儿茶酚基团,并提供了吡啶、酰胺和酚/儿茶酚官能团。所有化合物均已通过多种光谱方法、元素分析、热学研究和结晶学进行了充分的表征。所有化合物的生物活性均已得到研究,其中少数化合物在剂量依赖性方式下显著降低了T98G细胞的代谢活力、生长和克隆能力。在T98G细胞中观察到了ROS的积累,这些细胞显示出了受损的氧化还原状态,这一点从增加的细胞Caspase 3/7活性和微核的形成中可以明显看出。计算机模型药代动力学研究显示,所有化合物均具有良好的生物利用度、水溶性和其他类药物参数。由于以下原因,少数化合物被确定为未来研究的潜在先导分子:(a)对T98G脑、H-460肺和SNU-80甲状腺癌细胞具有高活性;(b)对非恶性HEK和MRC-5细胞具有低细胞毒性;(c)基于计算机模型的评估显示低毒性风险;(d)根据Lipinski的“五规则”药代动力学参数显示良好的理论口服生物利用度;以及(e)更好的药物相似性和药物评分值。