Substantially purified antiviral biflavanoids robustaflavone, hinokiflavone, amentoflavone, agathisflavone, volkensiflavone, morelloflavone, rhusflavanone, succedaneaflavanone, GB-1a and GB-2a are provided. Antiviral fiflavanoid derivatives and salt forms thereof, e.g. robustaflavone tetrasulfate potassium salt, and methods for preparing the same are also disclosed. Pharmaceutical compositions which include the antiviral biflavanoids, derivatives or salts thereof are also provided. Also disclosed is an improved method for obtaining substantially pure robustaflavone from plant material. The biflavanoid compounds, derivatives or salts thereof of the invention may be used in a method for treating and/or preventing viral infections caused by viral agents such as influenza, e.g. influenza A and B; hepatitis, e.g. hepatitis B; human immunodeficiency virus, e.g. HIV-1; Herpes viruses (HSV-1 and HSV-2); Varicella Zoster virus (VZV); and measles.
本研究提供了实质上纯化的抗病毒双
黄酮类化合物--强力
黄酮、桧
黄酮、芒果
黄酮、芒果
黄酮、伏肯
黄酮、麦卢
黄酮、胡
黄酮、琥珀
黄酮、GB-1a 和 GB-2a。此外,还公开了抗病毒的五黄烷衍
生物及其盐形式,例如强力
黄酮四
硫酸钾盐,以及制备方法。还提供了包括抗病毒双黄烷、衍
生物或其盐的药物组合物。此外,还公开了一种从植物材料中获得高纯度强力
黄酮的改进方法。本发明的双黄烷化合物、衍
生物或其盐类可用于治疗和/或预防由病毒病原体引起的病毒感染,如流感,如甲型和乙型流感;肝炎,如乙型肝炎;人类免疫缺陷病毒,如 HIV-1;疱疹病毒(HSV-1 和 HSV-2);
水痘带状疱疹病毒(VZV);以及麻疹。