Abstract The Chemical study of methanolic extract of the seeds from Erythrophleum ivorense led to the isolation of one original cassane diterpenoid (1) along with six known cassane diterpenoids (2–7). In addition, the known compounds (2–7) are isolated for the first time in E. ivorense. Their structures were established according to their spectral data (NMR, HRESIMS, IR). This result confirms that cassane-type diterpenoids are one of the major constituents of Erythrophleum species. The identification of these compounds and their chemotaxonomic significance is discussed.

中文翻译：

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Erythrophleum ivorense A. Chev 种子的化学研究。(豆科)

摘要 对 Erythrophleum ivorense 种子甲醇提取物的化学研究导致分离出一种原始卡桑二萜 (1) 和六种已知的卡桑二萜 (2-7)。此外，已知化合物 (2-7) 是首次在 E. ivorense 中分离出来。它们的结构是根据它们的光谱数据（NMR、HRESIMS、IR）确定的。该结果证实，cassane 型二萜是 Erythrophleum 物种的主要成分之一。讨论了这些化合物的鉴定及其化学分类学意义。