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Four new acetylated ginsenosides from processed ginseng (sun ginseng)
Il Ho Park1, Sang Beom Han, Jong Moon Kim
1Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742 Korea.
Abstract:
Four new acetylated ginsenosides were isolated from the processed ginseng (SG, sun ginseng). Their structures were determined to be 3beta,12beta-dihydroxydammar-20(22),24-diene-3-O-beta-D-glucopyranosyl(1-->2)-beta-D-6"-O-acetylglucopyranoside; 3beta,12beta-dihydroxydammar-20(21), 24-diene-3-O-beta-D-glucopyranosyl(1-->2)-beta-D-6"-O-acetylglucopyranoside; 3beta, 6alpha, 12beta-trihydroxydammar-20(22),24-diene-beta-O-beta-D-6'-O-acetylglucopyranoside and 3beta,6a,12beta-trihydroxydammar-20(21),24-diene-6-O-beta-D-6'-O-acetylglucopyranoside based on spectroscopic evidences. The compounds were named ginsenoside Rs4, Rs5, Rs6 and Rs7, respectively.