Two new lupane-triterpene glycosides named acankoreosides C and D, were isolated from the leaves of Acanthopanax koreanum. Based on spectroscopic data, the chemical structures were determined as 3-O-β-D-glucopyranosyl 3α,11α-dihydroxylup-20(29)-en-28-oic acid 28-O-α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester and 3α,11α-dihydroxylup-23-al-20(29)-en-28-oic acid 28-O-α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester, respectively.
leaf, araliaceae, Acanthopanax koreanum, lupane-triterpene glycoside, acankoreoside C and D
Publication DOI: 10.1016/S0031-9422(98)00402-6Journal NLM ID: 0151434Publisher: Elsevier
Institutions: Faculty of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862, Japan, College of Pharmacy, Kyung-Hee University, Hoegi-dong 1, Dongdaemun-ku, Seoul 132-702, South Korea
Methods: 13C NMR, 1H NMR, EI-MS, IR, FAB-MS, TLC, GLC, alkaline hydrolysis, optical rotation measurement, HMBC, HMQC, DEPT, COSY, HCl hydrolysis
Found