Diminutol is a cell-permeable purine derivative that inhibits the NADP-dependent oxidoreductase, NQO1 (Ki = 1.72 μM), to destabilize microtubules and disrupt mitosis. At 50 μM, it directly affects tubulin polymerization in Xenopus egg extracts without interfering with the activity of Cdk1, DNA replication, or actin polymerization.
Fraxinellone analog 1 (compound 2) 作为一种Nrf2介导的抗氧化防御系统激活剂,显示出高效和迅速的效应,并对谷氨酸诱导的兴奋性毒性提供保护.它通过诱导Gpx4、Sod1和Nqo1等抗氧化基因的表达来发挥作用.此外,Fraxinellone analog 1 还具备神经保护特性,可调节抗氧化应激和炎症,适用于神经退行性疾病的相关研究.