New C-23 modified of silybin and 2,3-dehydrosilybin: Synthesis and preliminary evaluation of antioxidant properties
作者:Armando Zarrelli、Alessandro Sgambato、Valentina Petito、Lorenzo De Napoli、Lucio Previtera、Giovanni Di Fabio
DOI:10.1016/j.bmcl.2011.06.049
日期:2011.8
Furthermore a new and efficient method for the preparation of DHS from silybin was developed and optimised. The antioxidant properties of the new compounds were evaluated in a cellular model in vivo and they displayed an antioxidant activity comparable to or higher than silybin and DHS, being able to prevent H2O2-induced generation of intracellular reactive oxygen species (ROS). Most of the derivatives also
水飞蓟宾是水飞蓟素的主要黄酮木脂素,它具有多种生物学效应,通常归因于其抗氧化性能。本文中,我们将描述一种有效的合成策略,以使用以下方法获得各种新的和更水溶性的水飞蓟宾和2,3-脱氢水飞蓟宾(DHS)衍生物,其中23-羟基被转化为硫酸盐,磷酸二酯或胺基解决方案阶段的方法。此外,开发和优化了一种新的,高效的从水飞蓟宾制备DHS的方法。 在体内细胞模型中评估了新化合物的抗氧化性能,它们显示出的抗氧化活性与水飞蓟宾和DHS相当或更高,能够防止H 2 O 2诱导的细胞内活性氧(ROS)生成。大多数衍生物还表现出更好的亲水性,同时保留了水飞蓟宾的生物活性,它们可能会拓宽此类天然化合物的体内应用范围。