A new alkaloid, angustifoline A (1), was isolated from the rhizome of Epilobium angustifolium L. (Onagraceae). Its structure, including the absolute configurations, were determined by extensive spectroscopic analysis and quantum-chemical calculations.

中文翻译：

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Angustifoline A，一种来自 Epilobium angustifolium 的新生物碱

从Epilobium angustifolium L. (Onagraceae)的根茎中分离出一种新的生物碱，angustifolin A ( 1 )。它的结构，包括绝对构型，是通过广泛的光谱分析和量子化学计算确定的。