【摘要】 从中药路路通乙醇提取物中分得八个化合物 ,经光谱解析、相关化合物光谱对照及X 射线衍射确定其化学结构。其中化合物 4鉴定为一新化合物 ,命名为 3α 乙酰氧基 2 5 羟基 齐墩果酸 ,化合物 3为首次从天然产物中分得 ,命名为 3 酮基 12α 羟基 齐墩果 2 8,13β 内酯更多还原

【Abstract】 A new triterpene named 3α-acetoxyl-25-hydroxyolean-12-en-28-oic acid (4) was isolated from the ethanolic extract of Lulutong together with seven known compounds. Among them, compound 3 named 3-oxo-12α-hydroxy-oleanan- 28,13β-olide was for the first time isolated as a natural product. The structures of compounds 3 and 4 were elucidated by spectral analysis and by X-ray diffraction.更多还原