Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Ginsenoside-Ra1 and Ginsenoside-Ra2, New Dammarane-Saponins of Ginseng Roots
HIROMICHI BESSORYOJI KASAIYUHICHIRO SARUWATARITOHRU FUWAOSAMU TANAKA
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1982 Volume 30 Issue 7 Pages 2380-2385

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Abstract
Two new dammarane-saponins, named ginsenoside-Ra1 (1) and ginsenoside-Ra2 (2) were isolated from the root of Panax ginseng C.A. MEYER by means of chromatography on silica gel and reversed phase chromatography on highly porous polymer. The structures of saponins 1 and 2 were established to be 20 (S)-protopanaxadiol 3-O-β-D-glucopyranosyl-(1→2)-β-D-glucopyranoside-20-O-β-D-xylopyranosyl (1→4)-α-L-arabinopyranosyl (1→6)-β-D-glucopyranoside and 20 (S)-protopanaxadiol 3-O-β-D-glucopyranosyl (1→2)-β-D-glucopyranoside-20-O-β-D-xylopyranosyl (1→2)-α-L-arabinofuranosyl (1→6)-β-D-glucopyranoside, respectively.
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© The Pharmaceutical Society of Japan
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