Natural and synthetic xanthone derivatives are well-known for their ability to act as antioxidants and/or enzyme inhibitors. This paper aims to present a successful synthetic methodology towards xanthenedione derivatives and the study of their aromatization to xanthones. Additionally their ability to reduce Fe(III), to scavenge DPPH radicals and to inhibit AChE was evaluated. The results demonstrated that xanthenedione derivative 5e, bearing a catechol unit, showed higher reduction capacity than BHT and similar to quercetin, strong DPPH scavenging activity (EC50 = 3.79 ± 0.06 µM) and it was also showed to be a potent AChEI (IC50 = 31.0 ± 0.09 µM) when compared to galantamine (IC50 = 211.8 ± 9.5 µM).
天然和人工合成的
氧杂蒽酮衍
生物以其
抗氧化剂和/或酶
抑制剂的能力而闻名。本文旨在介绍一种合成
氧杂蒽酮衍
生物的成功方法,并研究其芳香化生成
氧杂蒽酮的过程。此外,还评估了它们还原Fe(III)、清除
DPPH自由基和抑制
乙酰胆碱酯酶的能力。结果表明,带有
儿茶酚单元的
氧杂蒽酮衍
生物5e的还原能力比
BHT高,与
槲皮素相似,具有强效的
DPPH清除活性(
EC50 = 3.79 ± 0.06 µM),与
加兰他敏(IC50 = 211.8 ± 9.5 µM)相比,也是一种有效的
乙酰胆碱酯酶抑制剂(IC50 = 31.0 ± 0.09 µM)。