title: Clinoposaponins VI and VIII, two oleanane-triterpene saponins from Clinopodium micranthum.
abstract: From the whole plants of Clinopodium microanthum two new saponins, called clinoposaponins VI and VIII, were isolated together with five known and two artifact saponins, and their structures were elucidated by spectroscopic data and chemical evidence. Each aglycone of these saponins was genuine saikogenin-type which had an 11-ene and a five-membered ether ring, and they were 3,16-bisdesmosidic glycosides.
authors.affiliation: School of Pharmaceutical Sciences, University of Shizuoka, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Yamamoto
authors.forename: H
authors.initials: H
authors.lastname: Suzuki
authors.forename: T
authors.initials: T
authors.lastname: Miyase
authors.forename: A
authors.initials: A
authors.lastname: Ueno
authors.forename: T
authors.initials: T
authors.lastname: Maeda
mesh_terms: D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives*; D010944:Plants / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012503:Saponins; D014315:Triterpenes; C084144:clinoposaponin VI; C084145:clinoposaponin VIII; D009828:Oleanolic Acid