Two pairs of enantiomeric propylated flavonoids and a new lignan from the aerial parts of Abrus precatorius
Two pairs of enantiomeric propylated flavonoids and a new lignan from the aerial parts of Abrus precatorius
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两对对映体丙基化黄酮类化合物和来自相思子地上部分的新木酚素
DOI：
10.1016/j.fitote.2018.12.019
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发表时间：
2019-03-01
期刊：
影响因子：
3.4
通讯作者：
Qiu, Sheng-Xiang
中科院分区：
文献类型：
--
作者：
Li, Yan;Qin, Xu-Bing;Qiu, Sheng-Xiang
从鸡骨草地上部分分离得到两对新的对映体黄酮类化合物（1a，1b和2a，2b）沿着一个新的木脂素（3）。所有这些对映体类黄酮具有前所未有的丙基化的黄酮骨架，代表了一个新的类黄酮家族，并且发现新的木脂素具有有吸引力的花生酸酯侧链。通过详细的核磁共振和质谱分析广泛阐明了它们的结构。此外，对这些化合物对蜡样芽孢杆菌和大肠杆菌的抗菌活性进行了生物评价。
Two pairs of novel enantiomeric flavonoids (1a, 1b and 2a, 2b), along with one new lignan (3), were isolated from the aerial parts of Abrus precatorius. All of these enantiomeric flavonoids featured an unprecedented propylated fiavonoid skeleton representing a new family of flavonoid, and the new lignan was found to have an attractive arachidate ester side chain. Their structures were extensively elucidated by means of detailed NMR and mass spectroscopic analysis. Moreover, biological evaluation of antibacterial activity for these compounds against Bacillus cereus and Escherichia coli were conducted.