Abstract A phytochemical investigation of the leaves of Lyonia ovalifolia var. hebecarpa (Franch. ex F.B. Forbes & Hemsl.) Chun (Ericaceae) led to the isolation of 22 compounds, including eight diterpenoids (1–8), two sesquiterpenoids (9 and 10), two monoterpenoids (11 and 12), two iridoids (13 and 14), four phenylpropanoids (15–18), and four lignans (19–22). Their structures were determined by spectroscopic data analysis and comparison with literature data. The absolute configuration of bisdeacetylkalmitoxin VI (1) was determined by single-crystal X-ray diffraction analysis for the first time. Notably, all the isolates 1–22 were reported from the genus of Lyonia for the first time, and compounds 9–12 and 15–22 were obtained from the Ericaceae family for the first time. The chemotaxonomic significance of compounds 1–22 was discussed.

中文翻译：

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来自 Lyoniaovalifolia var. 叶子的化学成分。白果

摘要 对 Lyonia ovalifolia var. 叶子的植物化学研究。hebecarpa (Franch. ex FB Forbes & Hemsl.) Chun (Ericaceae) 导致分离出 22 种化合物，包括八种二萜 (1-8)、两种倍半萜 (9 和 10)、两种单萜 (11 和 12)、两种环烯醚萜(13 和 14)、四种苯丙烷 (15-18) 和四种木脂素 (19-22)。它们的结构是通过光谱数据分析和与文献数据比较来确定的。首次通过单晶 X 射线衍射分析确定了双脱乙酰基钾毒素 VI (1) 的绝对构型。值得注意的是，分离株1-22均为首次从里昂属中报道，化合物9-12和15-22均为首次从杜鹃花科中分离得到。讨论了化合物 1-22 的化学分类学意义。