Phytochemical study of Juglans regia L. leaves
作者:Sebastian Schwindl、Birgit Kraus、Jörg Heilmann
DOI:10.1016/j.phytochem.2017.08.012
日期:2017.12
described for the first time in Juglans - were isolated. As characteristic structural feature, the previously undescribed compounds showed acylation of the sugar units with sinapic, ferulic, coumaric, benzoic or salicylic acid. Their chemical structures were elucidated on the basis of 1D and 2D NMR techniques, HRESIMS as well as CD spectroscopy. Absolute stereochemistry was revealed by mild alkaline
胡桃的甲醇提取物通过各种色谱技术进行分离,得到总共 40 种代谢物,属于巨豆茚、四氢萘酮、苯丙烷、新木脂烷和胡桃苷。分离出 10 种未知的巨蒺藜糖苷衍生物(胡桃苷 AK,1-10)和六种未知的四氢萘酮糖苷衍生物(胡桃苷 JO,11-16)以及 24 种已知化合物——其中 16 种是首次在胡桃中描述的化合物。作为特征结构特征,先前未描述的化合物显示出糖单元与芥酸、阿魏酸、香豆酸、苯甲酸或水杨酸的酰化。它们的化学结构是在 1D 和 2D NMR 技术、HRESIMS 以及 CD 光谱的基础上阐明的。