目的 对榛子叶中的鞣质成分进行了研究 ,开发利用黑龙江省榛子叶资源。方法 利用 ¹H- NMR,¹³C- NMR,FAB- MS,CD谱及 ¹H- ¹HCOSY二维谱与化学方法鉴定。结果 从中得到 4个化学成分 :榛叶素 B(heterophylliin B,Ⅰ) ,tellimagrandin (Ⅱ) ,casuarictin (Ⅲ) ,casuarinin (Ⅳ)。结论 榛叶素 B是一个新的鞣花二聚体成分

Object To study tannin components in the leaves of Corylus heterophylla Fisch. Methods They were identified by ¹H-NMR), ¹³C-NMR), FAB-MS, CD, 2-dimensional ¹H-¹HCOSY) spectra, and chemical methods. Results Four compounds were obtained from the plant. They are a new one, heterophylliin B (Ⅰ) and three known tannins, tellimagrandin Ⅱ (Ⅱ), casuarictin (Ⅲ), and casuarinin (Ⅳ).Conclusion Heterophylliin B is an ellagitannin dimer.