title: A new polyoxygenated triterpene and two new aeginetic acid quinovosides from the roots of Rehmannia glutinosa.
abstract: A new minor polyoxygenated triterpene named glutinolic acid (1) and two new aeginetic acid quinovosides (2, 3) were isolated from the roots of Rehmannia glutinosa LIBOSCH. (Scrophulariaceae) cultivated in Gunwi-gun, Korea. The structures of these compounds were established as 3α,19α,20β,24,30-pentahydroxyurs-12-en-28-oic acid (1, glutinolic acid), aeginetic acid 5-O-β-D-quinovoside (2) and aeginetoyl ajugol 5″-O-β-D-quinovoside (3) on the basis of chemical and spectroscopic evidence.
authors.affiliation: Natural Products Research Institute and College of Pharmacy, Seoul National University.
authors.forename: So Young
authors.initials: SY
authors.lastname: Lee
authors.forename: Ju Sun
authors.initials: JS
authors.lastname: Kim
authors.forename: Ran Joo
authors.initials: RJ
authors.lastname: Choi
authors.forename: Yeong Shik
authors.initials: YS
authors.lastname: Kim
authors.forename: Je-Hyun
authors.initials: JH
authors.lastname: Lee
authors.forename: Sam Sik
authors.initials: SS
authors.lastname: Kang
mesh_terms: D004187:Disaccharides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D009005:Monosaccharides / Q000737:chemistry* / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D032267:Rehmannia / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C561137:3alpha,19alpha,20beta,24,30-pentahydroxyurs-12-en-28-oic acid; D004187:Disaccharides; D009005:Monosaccharides; D014315:Triterpenes; C561138:aeginetic acid 5-O-beta-D-quinovoside; C561139:aeginetoyl ajugol 5''-O-beta-D-quinovoside