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Two new triterpenoid saponins from ginseng medicinal fungal substance

Author:
Xu, Wei, Zhang, Jin-Hui, Wang, Xin-Wen, Liu, Xiao-Li, Liu, Xin, Qiu, Zhi-Dong
Source:
Journal of Asian natural products research 2016 v.18 no.9 pp. 865-870
ISSN:
1477-2213
Subject:
Panax, chemical analysis, fungi, ginsenosides, spectroscopy, triterpenoid saponins
Abstract:
Two new dammarane-type triterpenoid saponins, namely ginsenosides Rb ₄ (1) and Rb ₅ (2), were isolated from ginseng medicinal fungal substance. The structures of 1 and 2 were established as 3 β ,12 β ,20(S)-trihydroxydammar-24(25)- ene -3- O -[ α - d -glucopyranosyl-(1→4)- β - d -glucopyranosyl-(1→2)- β - d -glucopyranosyl]-20- O - β - d -glucopyranoside and 3 β ,12 β ,20(S)-trihydroxydammar-24(25)- ene -3- O -[ α - d -glucopyranosyl-(1→4)- α - d -glucopyranosyl-(1→4)- β - d -glucopyranosyl-(1→2)- β - d -glucopyranosyl]-20- O - β - d -glucopyranoside on the basis of spectroscopic analysis and chemical analysis, respectively.
Agid:
5369927