Korean Journal of Pharmacognosy (생약학회지)

The Korean Society of Pharmacognosy (한국생약학회)
권호 표지

Flavonoids from the Leaves of Ginkgo biloba

은행잎의 Flavonoid 성분에 관한 연구

  • Kang, Sam-Sik (Natural Products Research institute, Seoul National University) ;
  • Kim, Ju-Sun (Natural Products Research institute, Seoul National University) ;
  • Kwak, Wie-Jong (Life Science Research Center, Sunkyong Industries) ;
  • Kim, Ki-Hyup (Life Science Research Center, Sunkyong Industries)
  • 강삼식 (서울대학교 생약연구소) ;
  • 김주선 (서울대학교 생약연구소) ;
  • 곽의종 (선경인더스트리 생활과학연구소) ;
  • 김기협 (선경인더스트리 생활과학연구소)
  • Published : 1990.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Five biflavones and sevenflavonolglycosideswereisolatedfromtheleaves of Ginkgo biloba. They were sciadopitysin(1), ginkgetin(2), isoginkgetin(3), bilobetin(4), amentoflavone(5), kaempferol 3-O-[$6'-O-{\rho}-coumaroyl-{\beta}-_D-glucopyranosyl(1{\rightarrow}2)-{\alpha}-_Lrhamnopyranoside$](6), quercetin 3-O-[$6'-O-{\rho}-coumaroyl-{\beta}-_D-glucopyranosyl(1{\rightarrow}2)-{\alpha}-_Lrhamnopyranoside$](8), rutinosides of kaempferol(7), isorhamnetin(9), quercetin(10), laricitrin(11), and kaempferol 3-O-($2',6'-{\alpha}-_L-dirhamnopyranosyl-{\beta}-_{D}-glucopyranoside$)(12). The structures were established by spectroscopic and chemical methods.

Keywords