title: A New Minor Saponin from the Leaves of Panax ginseng.
abstract: Seventeen compounds were isolated from the leaves of PANAX GINSENG C. A. Meyer. Among them, a new minor saponin was established as 3beta,6alpha,12beta-trihydroxy-dammar-20(22), 24-diene-6- O-alpha- L-rhamno-pyranosyl-(1-->2)-beta- D-glucopyranoside ( 2). Fourteen compounds were identified as 20( R)-protopanaxadiol ( 1), 20( R)-protopanaxatriol, ginsenoside-Rh (3), 20( R)-ginsenoside-Rh (2), 20( S)-ginsenoside-Rh (2), ginsenoside-Rh (1), -Rg (3), -Rg (2), -Rg (1), -Re, -Rd, -Rc, -Rb (2), -Rb (1); the others are still under investigation.
authors.affiliation: Department of Phytochemistry, Shenyang College of Pharmacy, China.
authors.forename: S
authors.initials: S
authors.lastname: Zhang
authors.forename: T
authors.initials: T
authors.lastname: Takeda
authors.forename: T
authors.initials: T
authors.lastname: Zhu
authors.forename: Y
authors.initials: Y
authors.lastname: Chen
authors.forename: X
authors.initials: X
authors.lastname: Yao
authors.forename: O
authors.initials: O
authors.lastname: Tanaka
authors.forename: Y
authors.initials: Y
authors.lastname: Ogihara