白桦酯酸是一种天然存在的五环戊烷型三萜类物质，通常是从白桦Betula platyphylla树皮中分离出来，在其他植物中也有发现，以游离糖苷和糖基衍生物的形式存在于不同植物中。通过对其化学结构的修饰可以得到多种多样的衍生物，研究表明白桦酯酸及其衍生物在抗肿瘤、抗病毒、消炎止痛、抑制脑神经及血管损伤和对其他常见疾病的治疗作用等方面具有积极的作用。综述了白桦酯酸及其衍生物的种类、生物活性及作用机制，以期为今后对其进一步的研究与应用提供理论参考。

Betulinic acid is a natural pentacyclic pentane triterpenoid, usually isolated from the bark of Betula platyphylla, or in the form of free glycosides and glycosyl derivatives in various plants. A variety of derivatives can be obtained by modifying its chemical structure. Betulinic acid and its derivatives have certain regulatory effects in anti-tumor, antiviral, anti-inflammatory, analgesic, inhibition of cerebral nerve and vascular injury, and treatment of other common diseases. The category, pharmacological activities and related mechanisms of betulinic acid and its derivatives are reviewed in this paper, in order to provide a theoretical reference for the future application.

R282.71

国家自然科学基金资助项目（31570589）；东北林业大学本科创新项目（201910225082）；中央高校基本科研业务资助项目（2572020DY22）