作者:Hai-Zhou Li、He-Jiao Song、Hong-Mei Li、Yu-Yin Pan、Rong-Tao Li
DOI:10.1007/s12272-012-1104-9
日期:2012.11
A new phenolic glycoside, 3′-keto rhododendrin (1) and a new sesquilignan, alutaceuol (2), together with twelve known phenolic compounds, were isolated from the leaves of Rhododendron alutaceum. Their structures were elucidated by extensive spectroscopic data analysis and comparison with literature values. In addition, the detailed analysis of 2D NMR data led us to conclude that the chemical shifts of dihydrobuddlenol B (5) need to be revised.
从杜鹃花(Rhododendron alutaceum)的叶子中分离出一种新的酚糖苷3′-酮杜鹃花素(1)和一种新的倍半萜烯(sesquilignan)alutaceuol(2),以及12种已知的酚类化合物。通过大量的光谱数据分析和与文献值的比较,阐明了它们的结构。此外,对二维核磁共振(2D NMR)数据的详细分析使我们得出结论,二氢蒲桃酚B(5)的化学位移需要修改。