Hui Tingting, Sun Yun, Zhu Liping, Guo Wen, Rao Gaoxiong
School of Pharmacy, Yunnan College of Traditonal Chinese Medicine, Kunming 650200, China.
Zhongguo Zhong Yao Za Zhi. 2009 May;34(9):1111-3.
To investigate the flavonoids in leaves of Alstonia scholaris, an ethno-remedy of Dai People in Yunnan.
The chemical constituents were isolated and purified by column chromatography. Their structures were elucidated on the basis of spectroscopic evidences and physicochemical properties.
Eight flavonoids were isolated and identified as kaempferol (1), quercetin (2), isorhamnetin (3), kaempferol-3-0-beta-D-galactopyranoside (4), quercetin-3-0-beta-D-galactopyranoside (5), isorhamnetin-3-0-beta-D-galactopyranoside (6), kaempferol-3-0-beta-D-xylopyranosyl-( 2-1)-0-beta-D-galactopyranoside (7) ,quercetin-3-0-beta-D-xylopyranosyl-( 2-1)-0-beta-D-galactopyranoside (8).
Flavonoids 1-7 were isolated from A. scholaris for the first time.
研究云南傣族民族药盆架树叶片中的黄酮类成分。
采用柱色谱法对化学成分进行分离纯化，并根据光谱数据和理化性质鉴定其结构。
从盆架树叶片中分离鉴定出8个黄酮类化合物，分别为山柰酚（1）、槲皮素（2）、异鼠李素（3）、山柰酚-3-O-β-D-吡喃半乳糖苷（4）、槲皮素-3-O-β-D-吡喃半乳糖苷（5）、异鼠李素-3-O-β-D-吡喃半乳糖苷（6）、山柰酚-3-O-β-D-吡喃木糖基-（2→1）-O-β-D-吡喃半乳糖苷（7）、槲皮素-3-O-β-D-吡喃木糖基-（2→1）-O-β-D-吡喃半乳糖苷（8）。
化合物1-7为首次从盆架树中分离得到。
