马蓝Strobilanthes cusia(Nees)O.Ktze.系爵床科植物,主要分布于华南、西南各地。马蓝有泻火、解毒、凉血等功效,是大青叶、板蓝根药材及制剂的主要来源之一。常用于治疗流感、流行性腮腺炎、流行性乙型脑炎、肝炎等疾病。化学成分据报道有氨基酸、靛蓝、靛玉红、色胺酮、β-谷甾醇、羽扇豆醇、白桦脂醇、羽扇酮。在我们的研究中除得到羽扇豆醇(Ⅰ)、白桦脂醇(Ⅱ)、羽扇 Ma Lan Strobilanthes cusia (Nees) O.Ktze. Apricot plants, mainly distributed in southern China, southwest. Ma Lan has diarrhea fire, detoxification, cooling blood and other effects, is Daqingye, Banlangen herbs and preparations of one of the main sources. Commonly used to treat influenza, epidemic parotitis, Japanese encephalitis, hepatitis and other diseases. The chemical composition is reported to include amino acids, indigo, indirubin, tryptanthrin, β-sitosterol, lupeol, betulin, and lupeone. In our study, except for lupolol (I), betulin (II), lupine