Abstract The phytochemical study of the roots of Scorzonera divaricata Turcz led to the isolation of 27 compounds, including eight sterols (1–8), one lignan (9), two cumarins (10, 11), five phenylpropanoids (12–16), six benzene derivatives (17–22), methyl-β-D-fructofuranoside (23), monolinolein (24), and three aliphatic acids (25–27). The structures of isolated compounds were identified using NMR and ESI-MS spectroscopic methods and comparing them with those previously reported. Except for β-daucosterol (8), scopoletin (10) and caffeic acid (16) from S. divaricata, this is the first report of the other 24 compounds from S. divaricata. Among them, eleven compounds (2–6, 11, 17, 19, 20, 23, 25) were reported from genus Scorzonera for first time, suggesting that they could be used to distinguish S. divaricata from the other species of Scorzonera. Furthermore, the chemotaxonomic significance of isolated compounds from S. divaricata has also been discussed.

中文翻译：

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Scorzonera divaricata 根的化学成分及其化学分类学意义

摘要 Scorzonera divaricata Turcz 根的植物化学研究导致分离出 27 种化合物，包括八种甾醇 (1-8)、一种木脂素 (9)、两种香豆素 (10, 11)、五种苯丙烷 (12-16)、六种苯衍生物 (17-22)、甲基-β-D-呋喃果糖苷 (23)、单亚油酸 (24) 和三种脂肪酸 (25-27)。使用 NMR 和 ESI-MS 光谱方法鉴定分离化合物的结构，并将它们与先前报道的结构进行比较。除了来自 S. divaricata 的 β-胡萝卜素 (8)、东莨菪碱 (10) 和咖啡酸 (16) 外，这是来自 S. divaricata 的其他 24 种化合物的首次报道。其中，11 种化合物（2-6、11、17、19、20、23、25）首次报道于 Scorzonera 属，表明它们可用于区分 S. divaricata 与 Scorzonera 的其他物种。