Phenolic Glycosides from Roots of Adenophora tetraphylla Collected in Heilongjiang, China.
作者:Hai-Xue KUANG、Chun-Jie SHAO、Ryoji KASAI、Kazuhiro OHTANI、Zhen-Kun TIAN、Jing-Da XU、Osamu TANAKA
DOI:10.1248/cpb.39.2440
日期:——
Adenophora tetraphylla (=A. triphylla, Campanulaceae) is a source of the traditional Chinese medicine "Shashen". From the roots of this plant, three new phenolic glycosides, called shashenosides I, II and III (2-4) were isolated together with siringinoside (1), β-sitosteryl-β-D-glucoside, linoleic acid and methyl stearate. The common aglycone of 2, 3 and 4 was identified as 3-methoxy-5-(2'-propenyl)-1, 2-benzenediol [=1-O-methyl-5-(2'-propenyl)-pyrogallol=6-hydroxyeugenol, 6], and the structures of 2 and 3 were elucidated as 2, 3-di-O-β-glucopyranoside and 3-O-α-arabinopyranosyl-(1→6)-β-glucopyranoside of 6, respectively. Shashenoside III (4) was formulated as 2-O-β-glucopyranoside of 3. No saponin was found in the roots.
四叶白头翁(Adenophora tetraphylla,又名A. triphylla,桔梗科)是传统中药“沙参”的来源。从这种植物的根中分离出三种新的酚糖苷,分别称为沙参苷 I、II 和 III (2-4),以及西林苷 (1)、β-谷甾醇-β-D-葡萄糖苷、亚油酸和硬脂酸甲酯。2、3 和 4 的常见糖苷被确定为 3-甲氧基-5-(2'-丙烯基)-1,2-苯二酚 [=1-O-甲基-5-(2'-丙烯基)-焦性没食子酚=6-羟基丁香酚,6],2 和 3 的结构分别被阐明为 2,3-二-O-β-吡喃葡萄糖苷和 3-O-α-阿拉伯吡喃糖基-(1→6)-β-吡喃葡萄糖苷。沙参苷 III (4) 被确定为 3 的 2-O-β-吡喃葡萄糖苷。在根中未发现皂苷。