目的：研究北鹤虱(天名精的果实)的化学成分。方法：通过各种色谱手段（silica gel、ODS、HPLC）对北鹤虱甲醇提取物的二氯甲烷层进行分离纯化，通过¹H-NMR、¹³C-NMR等波谱技术确定化合物的结构。结果：分离并鉴定了5个倍半萜类化合物，分别为特勒内酯（1）、3-epiisotelekin（2）、11β，13-dihydro-1-epi-inuviscolide（3）、天名精内酯酮（4）、天名精内酯醇（5）。结论：化合物2、3为首次从天名精属植物分离得到。

Objective: To investigate the chemical constituents from Carpesii Fructus (the dry fruits of Carpesium abrotanoides). Methods: The compounds were isolated by chromatography (silica gel, ODS, and HPLC)and identified on the basis of physico-chemical constants and spectral analysis (¹H-NMR and ¹³C-NMR). Results: Five sesquiterpenoids were isolated and their structures were identified as telekin (1), 3-epi-isotelekin (2), 11β, 13-dihydro-1-epi-inuviscolide (3), carabrone (4), and carabrol (5). Conclusion: Compounds 2 and 3 are isolated from the plants of Carpesium L. for the first time.