Two new megastigmane O-glucopyranosides from the leaves of Broussonetia papyrifera  

作　　者：Wei Sheng Feng Hong Wei Li Xiao Ke Zheng Sui Qing Chen 

机构地区：[1]Henan College of Traditional Chinese Medicine, Zhengzhou 450008, China

出　　处：《Chinese Chemical Letters》2007年第12期1518-1520,共3页中国化学快报（英文版）

摘　　要：Two new megastigmane O-glucopyranosides, named （2R,3R,5R,6S,9R）-3-hydroxy-5,6-epoxy-β-ionol-2-O-β-D-glucopyrano- side （1） and （2R,3R,5R,6S,9R）-3-hydroxyl-5,6-epoxy-acety-β-ionol-2-O-β-D-glucopyranoside （2） together with six known mega- stigmanes, were isolated from the leaves of Broussonetia papyrifera （Linn.） Vent. Their structures were established by chemical methods and spectroscopic techniques including 2D NMR.Two new megastigmane O-glucopyranosides, named （2R,3R,5R,6S,9R）-3-hydroxy-5,6-epoxy-β-ionol-2-O-β-D-glucopyrano- side （1） and （2R,3R,5R,6S,9R）-3-hydroxyl-5,6-epoxy-acety-β-ionol-2-O-β-D-glucopyranoside （2） together with six known mega- stigmanes, were isolated from the leaves of Broussonetia papyrifera （Linn.） Vent. Their structures were established by chemical methods and spectroscopic techniques including 2D NMR.

关 键 词：Broussonetia papyrifera Megastigmane O-glucopyranosides 

分 类 号：O63[理学—高分子化学]