Abstract:
:The hypoglycemic component, elatoside E, was isolated from the root cortex of Aralia elata SEEM. (Araliaceae) together with elatoside F and eight known oleanolic acid glycosides, elatosides A and C, oleanolic acid 3-O-[alpha-L-arabinofuranosyl (1-->4)]-beta-D-glucopyranosiduronic acid, oleanolic acid 3-O-beta-D-glucopyranosiduronic acid, stipuleanosides R1 and R2, and chikusetsusaponins IV and IVa. The structures of elatosides E and F were determined on the basis of chemical and physicochemical evidence as oleanolic acid 3-O-[beta-D-xylopyranosyl (1-->2)][beta-D-glucopyranosyl (1-->3)]-alpha-L-arabinopyranoside and its 28-O-beta-D-glucopyranosyl ester, respectively. The hypoglycemic activity of oleanolic acid and nine oleanolic acid oligoglycosides from the root cortex of Aralia elata was determined by monitoring inhibition effect on the elevation of plasma glucose level by oral sucrose tolerance test in rats, and some structure-activity relationships of oleanolic acid glycoside were obtained.
journal_name
Chem Pharm Bull (Tokyo)journal_title
Chemical & pharmaceutical bulletinauthors
Yoshikawa M,Murakami T,Harada E,Murakami N,Yamahara J,Matsuda Hdoi
10.1248/cpb.44.1923subject
Has Abstractpub_date
1996-10-01 00:00:00pages
1923-7issue
10eissn
0009-2363issn
1347-5223journal_volume
44pub_type
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