人参叶中的微量新皂甙
A NEW MINOR SAPONIN FROM THE LEAVES OF P AN AX GINSENG C.A.MEYER
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Abstract: Two minor compounds isolated from the leaves of Panax ginseng C. A. Meyer were characterized as 20(R)-protopanaxadiol (Ⅰ) and 3β,6α, 12β-trihydroxydammar-20 (22), 24-diene-6-O-α-L-rhamnosyl-(1→2)-β-Dglueopyranoside (Ⅱ) on the basis of spectral analysis and chemical evidences. Ⅰ was isolated for the first time from the leaves; Ⅱ was shown to be a new saponin and was named as Kinsenoside-Rg4.
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