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Two new dammarane-type triterpenoid saponins from notoginseng medicinal fungal substance
- Xu, Wei, Liu, Xin, Liu, Xiao-Li, Jia, Ai-Ling, Wang, Xin-Wen, Qiu, Zhi-dong
- Journal of Asian natural products research 2016 v.18 no.12 pp. 1138-1142
- chemical analysis, fungi, spectroscopy, triterpenoid saponins
- Two new dammarane-type triterpenoid saponins, namely ginsenoside Rk ₆ (1) and ginsenoside-Rh ₂₂ (2), were isolated from notoginseng medicinal fungal substance. The structures of 1 and 2 were established as 3 β ,6 α ,12 β ,26-tetrahydroxydammar-20(21),24(25)(E)-diene-6- O - β - D -glucopyranoside and 3 β ,6 α , 20(S)-trihydroxy-12(R),23(R)-expoxy-13(S),17(S)-dammar-24- ene -6- O - β - D -glucopyranoside on the basis of spectroscopic analysis and chemical analysis, respectively.