Abstract Gentianae Macrophyllae Radix, also called “Qinjiao” in Chinese, is the dried roots derived from the perennial herbs of Gentiana genus belonging to Gentianaceae family. Phytochemical research on the root of Gentiana crassicaulis Duthie ex Burk led to the isolation of a new secoiridoid aglycon, a new benzoic acid derivative, together with 14 known constituents. The structures were identified by means of spectra analysis and data comparison with previous literatures. In which, compounds 1, 4 and 10 were isolated from the genus Gentiana for the first time and compounds 2, 3, 5–7, 11–13 and 16 were firstly reported from Gentiana crassicaulis Duthie ex Burk. The chemotaxonomic significance of isolates was further discussed.

中文翻译：

---

Gentiana crassicaulis Duthie ex Burk 的化学成分

摘要 龙胆属龙胆科龙胆属多年生草本植物干根，又称“秦椒”。对 Gentiana crassicaulis Duthie ex Burk 根的植物化学研究导致分离出一种新的二环环烯醚苷元，一种新的苯甲酸衍生物，以及 14 种已知成分。通过光谱分析和与以前文献的数据比较来鉴定结构。其中化合物1、4和10为首次从龙胆属中分离得到，化合物2、3、5-7、11-13和16为首次从龙胆属Duthie ex Burk中分离得到。进一步讨论了分离株的化学分类学意义。