Saponins and Flavonoid Glycosides from Yellow Sweetclover

  • Kang, Sam-Sik (Natural Products Research Institute, Seoul National University) ;
  • Lee, Young-Soon (Natural Products Research Institute, Seoul National University) ;
  • Lee, Eun-Bang (Natural Products Research Institute, Seoul National University)
  • Published : 1988.09.01

Abstract

A new saponin, 3-O-[${\alpha}$-L-rhamnopyranosyl$(1{\rightarrow}2)$-${\beta}$-D-glucopyranosyl$(1{\rightarrow}2)$-${\beta}$-D-glucuronopyranosyl]soyasapogenol B carboxylate (6) has been isolated from the medicinal plant yellow sweetclover together with azukisaponin II(7), robinin(8), and clovin(9). 7,8, and 9 are reported for the first time from this plant. The new saponin(6) exhibited inhibitory action on leucocyte migration in inflammation.

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