The phytochemical investigation of the stems of Fissistigma maclurei Merr. led to the isolation of a new eudesmane-type sesquiterpene 6α,12-dihydroxy-4(15)-eudesmen- 1-one (1), together with seven known eudesmane-type sesquiterpenes (2–8) and four known aporphine-type alkaloids (9–12). The structures of these compounds were elucidated using comprehensive spectroscopic methods. All compounds were isolated from the F. maclurei for the first time. The chemotaxonomic significance of the isolates was also discussed.

中文翻译：

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来自Fissistigma maclurei 的Eudesmane 型倍半萜类和阿朴啡型生物碱

Fissistigma maclurei Merr茎的植物化学研究。导致分离出一种新的eudesmane 型倍半萜6α,12-dihydroxy-4(15)-eudesmen-1-one ( 1 )，以及7 种已知的eudesmane 型倍半萜( 2 – 8 ) 和四种已知的阿朴啡型生物碱 ( 9 – 12 )。使用综合光谱方法阐明了这些化合物的结构。所有化合物均为首次从F. maclurei中分离得到。还讨论了分离物的化学分类学意义。