Anti-Oxidative, Anti-Tumor-Promoting, and Anti-Carcinogensis Activities of Nitroastaxanthin and Nitrolutein, the Reaction Products of Astaxanthin and Lutein with Peroxynitrite
of lutein toward peroxynitrite was investigated, and the reaction products produced by scavenging with peroxynitrite were analyzed. A novel lutein-6H-1,2-oxazine (1) along with 14-s-cis-15-nitirolutein (2) and 14′-s-cis-15′-nitrolutein (3) was isolated from the products of the reaction of lutein with peroxynitrite. These results indicate that lutein is able to capture peroxynitrite and nitrogen dioxide
研究了叶黄素对过氧亚硝酸盐的体外反应性,并分析了用过氧亚硝酸盐清除产生的反应产物。从的产品中分离了一种新的叶黄素6 H -1,2-恶嗪(1)以及14-顺式-15-硝鲁梯丁素(2)和14'-顺式-15'-硝基叶黄素(3)。叶黄素与过氧亚硝酸盐的反应。这些结果表明,叶黄素能够从其分子中捕获过氧亚硝酸盐和二氧化氮自由基,从而形成恶嗪或氮杂类胡萝卜素。