STUDIES ON THE CONSTITUENTS OF ASTER-SCABER THUNB .5. STRUCTURES OF 6 NEW ECHINOCYSTIC ACID GLYCOSIDES ISOLATED FROM THE HERB

被引：0

作者：

NAGAO, T ^{[1
]}

IWASE, Y ^{[1
]}

OKABE, H ^{[1
]}

机构：

[1] FUKUOKA UNIV, FAC PHARMACEUT SCI, NANAKUMA 8-19-1, JONAN KU, FUKUOKA 81401, JAPAN

来源：

CHEMICAL & PHARMACEUTICAL BULLETIN | 1993年 / 41卷 / 09期

关键词：

ASTER-SCABER; TRITERPENE GLYCOSIDE; ECHINOCYSTIC ACID; 3-BETA; 16-ALPHA-DIHYDROXYOLEAN-12-EN-28-OIC ACID; SCABEROSIDE; COMPOSITAE;

D O I：

暂无

中图分类号：

R914 [药物化学];

学科分类号：

100701 ;

摘要：

Six new echinocystic acid 3,28-0-bisdesmosides, scaberosides Hc2, Hd, Hf, Hg, Hh and Hi, were isolated as their methyl esters from the ground part of Aster scaber THUNB. (Compositae), and their structures were determined based on spectral and chemical evidence as follows. Scaberoside HC2 is 3-0-[O-beta-D-xylopyranosyl-(1-->3)-beta-D-glucopyranosiduronic acid] echinocystic acid 28-{O-beta-D-xylopyranosyl-(1-->3)-O-beta-D-xylopyranosyl-(1-->4)-O-alpha-L-rhamnopyranosyl-(1-->2)-[O-alpha-L-rhamnopyranosyl-(1-->3)]-beta-D-xylopyranosyl}ester, scaberoside Hd, 3-0-[O-beta-D-xylopyranosyl-(1-->3)-beta-D-glucopyranosiduronic acid] echinocystic acid 28-{0-beta-D-xylopyranosyl-(1-->3)-O-beta-D-xylopyranosyl-(1-->3)-[O-beta-D-Xylopyranosyl-(1-->4)]-O-alpha-L-rhamnopyranosyl-(1-->2)-[O-alpha-L-rhamnopyranosyl-(1-->3)]-beta-D-xylopyranosyl} ester, scaberoside Hf, 3-0-[O-beta-D-galactopyranosyl[1-->2)-beta-D-glucopyranosiduronic acid] echinocystic acid 28-{0-beta-D-Xylopyranosyl-(1-->4)-O-alpha-L-rhamnopyranosyl-(1-->2)-[O-alpha-L-rhamnopyranosyl-(1-->3)]-beta-D-xylopyranosyl) ester, scaberoside Hg, 3-0-[O-beta-D-galactopyranosyl-(1-->2)-beta-D-glucopyranosiduronic acid] echinocystic acid 28-{0-beta-D-Xylopyranosyl-(1-->3)-O-beta-D-xylopyranosyl-(1-->4)-O-alpha-L-rhamnopyranoyl-(1-->2)-[O-alpha-L-rhamnopyranosyl-(1-->3)]-beta-D-Xylopyranosyl} ester, scaberoside Hh, 3-0-{0-beta-D-galactopyranosyl-(1-->2)-[0-beta-D-Xylopyranosyl-(1-->3)]-beta-D-glucopyranosiduronic acid) echinocystic acid 28-{0-beta-D-xylopyranosyl-(1-->3)-O-beta-D-Xylopyranosyl-(1-->4)-O-alpha-L-rhamnopyranosyl-(1-->2)-[O-alpha-L-rhamnopyranosyl-(1-->3)]-beta-D-xylopyranosyll ester and scaberoside Hi, 3-0-[O-beta-D-galactopyranosyl-(1-->2)-beta-D-glucopyranosiduronic acid] echinocystic acid 28-{0-beta-D-xylopyranosyl-(1-->3)-O-beta-D-Xylopyranosyl-(1-->3)-[O-beta-D-xylopyranosyl-(1-->4)]-O-alpha-L-rhamnopyr-anosyl-(1-->2)-[O-alpha-L-rhamnopyranosyl-(1-->3)]-beta-D-xylopyranosyl} ester.

引用

页码：1562 / 1566

页数：5

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