中文摘要：

新 sequiterpenoid 化合物 8a-hydroxy-1-isopropyl-4,7-dimethyl-1,2,3,4,6,8a-hexahydro-naphthalene-2,6-dione ( 1 )和七已知的混合物 anti-HH-dimer-coumarin ( 2 )，(?) -5-exo-hydroxy-borneol ( 3 )，O氢氧根苯乙烯的酸( 4 )， 9-hydroxy-ageraphorone ( 5 )， 10H-9-oxo-ageraphorone ( 6 )， 10H-9-oxo-ageraphorone ( 7 )和 9-oxo-10,11-dehydroageraphorone 8 ，从 Eupatorium adenophorum Spreng 的叶子被孤立。结构被红外， 1H 和 13C 阐明 NMR， EIMS， HMBC 和单个水晶的 X 光检查光谱数据。

英文摘要：

A new sequiterpenoid compound 8aa-hydroxy-l-isopropyl-4,7-dimethyl-l,2,3,4,6,8a-hexahydro-naphthalene-2,6- dione （1）, together with seven known compounds anti-HH-dimer-coumarin （2）, （-）-5-exo-hydroxy-borneol （3）, O-hydroxyl cinnamic acid （4）, 9β-hydroxy-ageraphorone （5）, 10Hα-9-oxo-ageraphorone （6）, 10Hβ-9-oxo- ageraphorone （7） and 9-oxo-10,11-dehydroageraphorone 8, was isolated from the leaves of Eupatorium adenopho- rum Spreng. The structures were elucidated by IR, ^1H and ^13C NMR, EIMS, HMBC and single-crystal X-ray spectral data.