Studies on dammarane-type saponins in the flower-buds of Panax ginseng C.A. Meyer.
From the dried flower-buds of Panax ginseng C.A. Meyer, a new minor dammarane-type triterpene saponin named ginsenoside III together with nine known saponins was isolated. On the basis of spectral and chemical evidence, the structure of the new saponin was elucidated as 3-O-[beta-D-glucopyranosyl(1-->2)-beta-D-glucopyranosyl]-20-O-beta- D-glucopyranosyl-3 beta,12 beta,20(S)-trihydroxy-dammar-25-en-24-one.
Department of Natural Medicinal Chemistry, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110015, China. fengqiu@ihw.com.cn
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D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D005894:Panax / Q000737:chemistry*; D010946:Plants, Medicinal; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes
C423949:3-O-(glucopyranosyl(1-2)-glucopyranosyl)-20-O-glucopyranosyl-3,12 ,20-trihydroxy-dammar-25-en-24-one; D012503:Saponins; D014315:Triterpenes