a new triterpene compound was isolated from the stems and leaves of Panax ginseng C. A. Meyer and established as 3β, 6α, 12β-trihydroxy-dammar-20(21), 24-diene-6-0-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside o...a new triterpene compound was isolated from the stems and leaves of Panax ginseng C. A. Meyer and established as 3β, 6α, 12β-trihydroxy-dammar-20(21), 24-diene-6-0-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside on the basis of spectral analysis and chemical evidence.展开更多
A novel dammarane-type triterpene oligoglycoside, named ginsenoside-Rg6 3, was isolated from the stem-leaves of Panax ginseng C. A. Mey., together with two known ones, 20(S)-ginsenoside-Rg2 1 and 20(R)-ginsenoside-Rg2...A novel dammarane-type triterpene oligoglycoside, named ginsenoside-Rg6 3, was isolated from the stem-leaves of Panax ginseng C. A. Mey., together with two known ones, 20(S)-ginsenoside-Rg2 1 and 20(R)-ginsenoside-Rg2 2. On the basis of chemical and physicochemical evidence , the structure of ginsenoside-Rg6 have been elucidated as 6-O-(-L-rhamnosyl-(1?2)-(-D-glucopyranosyl-dammarane-(E)-20(22), 24-diene-3(, 6(, 12(-triol.展开更多
Following six compounds have been at first time isolated from the stems and leaves of Ginseng Panax ginseng C.A.Meyer by TLC technique and identified by IR, LC MS and NMR as: (Ⅰ)hexadecanoic acid, (Ⅱ)1,7,7 trimethyl...Following six compounds have been at first time isolated from the stems and leaves of Ginseng Panax ginseng C.A.Meyer by TLC technique and identified by IR, LC MS and NMR as: (Ⅰ)hexadecanoic acid, (Ⅱ)1,7,7 trimethyl bicyclo 2,3 hexandione, (Ⅲ)(2 E,4E ) decadienal, (Ⅳ) Δ 4(8) ρ menthene 3 one, (Ⅴ)2,6 di tert butyl 4 methylphenol and (Ⅵ)2 methylmethahexadecanoate.展开更多
文摘a new triterpene compound was isolated from the stems and leaves of Panax ginseng C. A. Meyer and established as 3β, 6α, 12β-trihydroxy-dammar-20(21), 24-diene-6-0-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside on the basis of spectral analysis and chemical evidence.
基金The Ninth 5-year Plan" Key Science and Technique R & D Programme Foundation of China (96-901-01-12A).
文摘A novel dammarane-type triterpene oligoglycoside, named ginsenoside-Rg6 3, was isolated from the stem-leaves of Panax ginseng C. A. Mey., together with two known ones, 20(S)-ginsenoside-Rg2 1 and 20(R)-ginsenoside-Rg2 2. On the basis of chemical and physicochemical evidence , the structure of ginsenoside-Rg6 have been elucidated as 6-O-(-L-rhamnosyl-(1?2)-(-D-glucopyranosyl-dammarane-(E)-20(22), 24-diene-3(, 6(, 12(-triol.
文摘Following six compounds have been at first time isolated from the stems and leaves of Ginseng Panax ginseng C.A.Meyer by TLC technique and identified by IR, LC MS and NMR as: (Ⅰ)hexadecanoic acid, (Ⅱ)1,7,7 trimethyl bicyclo 2,3 hexandione, (Ⅲ)(2 E,4E ) decadienal, (Ⅳ) Δ 4(8) ρ menthene 3 one, (Ⅴ)2,6 di tert butyl 4 methylphenol and (Ⅵ)2 methylmethahexadecanoate.
