Five new prenylflavones, yinyanghuo A (1), yinyanghuo B (2), yinyanghuo C (3), yinyanghuo D (4), and yinyanghuo E (5), along with six known flavonoids, chrysoeriol, quercetin, apigenin, apigenin 7,4'-dimethyl ether, kaempferol, and luteolin, were isolated from the leaves of Epimedium sagittatum. Their structures were determined from spectral analysis. Compounds 1 and 2 showed significant antiplatelet induced by arachidonic acid.

中文翻译：

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淫羊Epi叶子中的新异戊烯酮。

五个新的异黄酮类化合物，即阴阳活A（1），阴阳活B（2），阴阳活C（3），阴阳活D（4）和阴阳活E（5），以及六个已知的类黄酮，金鸡油，槲皮素，芹菜素，芹菜素从淫羊Epi淫羊isolated的叶子中分离出4'-二甲醚，山emp酚和木犀草素。它们的结构由光谱分析确定。化合物1和2显示出花生四烯酸诱导的显着抗血小板作用。