New grayanol diterpenoid and new phenolic glucoside from the flowers of <i>Pieris formosa</i>
作者:Wei-Guang Wang、Hong-Mei Li、Hai-Zhou Li、Zhao-Yuan Wu、Rong-Tao Li
DOI:10.1080/10286020903436519
日期:2010.1.1
A new grayanol diterpenoid, grayanotoxin XXII (1), and a new phenolic glucoside, benzyl 2-hydroxy-4-O-[β-xylopyranosyl(1″ → 6′)-β-glucopyranosyl]-benzoate (2), were isolated from the flowers of Pieris formosa. Their structures were determined on the basis of spectroscopic analysis and chemical methods.
分离出一种新的灰醇二萜类化合物,灰毒素XXII(1),和一种新的酚类葡萄糖苷,苄基2-羟基-4 - O- [β-吡喃吡喃糖基(1″→6′)-β-吡喃葡萄糖基]-苯甲酸酯(2)。来源于皮埃里斯福摩萨的花。根据光谱分析和化学方法确定了它们的结构。