title: [A new minor saponin from the leaves of Panax ginseng C. A. Meyer].
abstract: Two minor compounds isolated from the leaves of Panax ginseng C. A. Meyer were characterized as 20(R)-protopanaxadiol (I) and 3 beta, 6 alpha, 12 beta-trihydroxydammar-20 (22), 24-diene-6-O-alpha-L-rhamnosyl-(1----2)-beta-D-glucopyranoside (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 ginsenoside-Rg4.
authors.forename: S L
authors.initials: SL
authors.lastname: Zhang
authors.forename: Y J
authors.initials: YJ
authors.lastname: Chen
authors.forename: C B
authors.initials: CB
authors.lastname: Cui
authors.forename: G X
authors.initials: GX
authors.lastname: He
authors.forename: S X
authors.initials: SX
authors.lastname: Xu
authors.forename: Y P
authors.initials: YP
authors.lastname: Pei
authors.forename: X S
authors.initials: XS
authors.lastname: Yao
authors.forename: T R
authors.initials: TR
authors.lastname: Zhu
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D036145:Ginsenosides; D005894:Panax / Q000032:analysis*; D010946:Plants, Medicinal; D012502:Sapogenins; D012503:Saponins / Q000032:analysis / Q000302:isolation & purification*; D014315:Triterpenes / Q000302:isolation & purification*
chemical_list: D036145:Ginsenosides; D012502:Sapogenins; D012503:Saponins; D014315:Triterpenes; C062915:ginsenoside Rg4; C062916:protopanaxadiol