A Benzofuranoid Neolignan from Magnolia biondii Pamp

Aim Isolation and structural elucidation of the constituents from the dried flower buds of Magnolia biondii Pamp. Methods Column chromatography and TLC were used to isolate chemical constituents. Spectroscopic methods were employed for structural elucidation. Results One benzo furanoid neolignan （licarin B） and two bisepoxy lignans （magnolin, fargesin） were isolated and identified. Conclusion Licarin B is the first reported benzofuranoid lignan from the family Magnoliaceae.

中药三白草地上部位的化学成分研究(Ⅰ)

目的研究三白草地上部分的化学成分。方法采用反复硅胶柱层析分离纯化,通过理化常数测定和光谱分析鉴定其化学结构。结果从三白草地上部分分离得到8个化合物,分别为里卡灵A(Ⅰ)、里卡灵B(Ⅱ)、三白草酮(Ⅲ)、内消旋二氢愈疮木酯酸(Ⅳ)、三白草内酰胺(Ⅴ)、马兜铃内酰胺AⅡ(Ⅵ)、棕榈酸(Ⅶ)、二十七烷酸(Ⅷ)。结论化合物Ⅰ、Ⅱ、Ⅶ、Ⅷ为首次从该植物中分离得到。