In vitro biological evaluation and molecular docking studies of natural and semisynthetic flavones from Gardenia oudiepe (Rubiaceae) as tyrosinase inhibitors
作者:M.D. Santi、C. Bouzidi、N.S. Gorod、M. Puiatti、S. Michel、R. Grougnet、M.G. Ortega
DOI:10.1016/j.bioorg.2018.10.034
日期:2019.2
agents are tyrosinase inhibitors, however some of those currently used have shown serious side effects. As several classes of flavonoids have already demonstrated ability to inhibit tyrosinase, a library of natural polymethoxyflavones isolated (1–7) from the bud exudate of Gardenia oudiepe and semi-synthetic derivatives (8,9) were evaluated. IC50 of the most active compounds were in the micromolar range
在不引起永久性色素沉着或刺激的情况下,难以治疗色素沉着过度症。最有效的色素减退剂是酪氨酸酶抑制剂,但是目前使用的某些已经显示出严重的副作用。如几类黄酮已经显示能力抑制酪氨酸酶,天然甲氧基黄酮的文库中分离(1 - 7从萌芽渗出物)栀子oudiepe和半合成衍生物(8,9)进行了评价。最具活性的化合物的IC 50在微摩尔范围内。最强的抑制剂1,2和3全部共享一个3',4'-二甲氧基-5'-羟基三取代的B环。这些SAR结论已通过分子对接研究得到证实。阐明了与酶的相互作用方式,并观察到活性最高的化合物与酪氨酸酶催化残基之间的重要相互作用。所有这些数据提供了一个化合物库,这些化合物可以作为新的脱色剂和配方设计的潜在领导者。