Xanthone C-Glycoside and Acylated Sugar from Polygala tenuifolia.
作者:Yukinobu IKEYA、Ko SUGAMA、Masao MARUNO
DOI:10.1248/cpb.42.2305
日期:——
A new xanthone C-glycoside, polygalaxanthone III (1), and a new acylated sugar, tenuifoliside E (2) were isolated from the roots of Polygala tenuifolia. Their structures were characterized as 4-C-[beta-D-apiofuranosyl-(1-->6)-beta-D-glucopyranosyl]-1, 3,6-trihydroxy-7-methoxyxanthone (1) and beta-D-(1-O-acetyl-3-O-feruloyl-6-O-sinapoyl)-fructofuranosy l-alpha-D-(2,4,6- O-triacetyl)glucopyranoside (2)
从远志的根中分离出一种新的x吨酮C-糖苷,聚galaxanthone III(1)和一种新的酰化糖,tenuifoliside E(2)。它们的结构被表征为4-C- [β-D-呋喃呋喃糖基-(1→6)-β-D-吡喃葡萄糖基] -1、3,6-三羟基-7-甲氧基黄酮(1)和β-D- (1-O-乙酰基-3-O-阿魏酰基-6-O-芥子基)-果糖呋喃糖基1-α-D-(2,4,6-O-三乙酰基)吡喃葡萄糖苷(2)光谱证据包括二维核磁共振(2D-NMR)研究。