Abstract A phytochemical study of the leaves and twigs of Elaeagnus umbellata Thunb. has led to the isolation and identification of 12 compounds, including two flavonoid coumaroyl glycosides (1 and 2), two simple phenolic compounds (3 and 4), one coniferyl alcohol derivative (5), one monoterpene (6), two pairs of enantiomeric neolignans (7a/7b and 8a/8b), and a pair of enantiomeric sesquineolignans (9a/9b). The structures of these compounds were elucidated through the analysis of their MS, ECD, and 1D/2D NMR spectra as well as comparison with previously reported data. This is the first time that 1 and 2 have been isolated from this species, and the first time that 5, 6, 7a, 7b, 8a, 8b, 9a, and 9b have been identified in the Elaeagnaceae family.

中文翻译：

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胡杨叶和小枝的植物化学成分

摘要 胡杨叶和小枝的植物化学研究。已导致分离和鉴定 12 种化合物，包括两种黄酮类香豆酰糖苷（1 和 2）、两种简单酚类化合物（3 和 4）、一种松柏醇衍生物（5）、一种单萜（6）、两对对映体新木脂素（7a/7b 和 8a/8b）和一对对映体倍半木脂素（9a/9b）。这些化合物的结构通过对它们的 MS、ECD 和 1D/2D NMR 光谱的分析以及与先前报道的数据进行比较来阐明。这是首次从该种中分离到1和2，也是首次在胡杨科中鉴定出5、6、7a、7b、8a、8b、9a和9b。