title: Hydrocotylosides I-VII, new oleanane saponins from hydrocotylesibthorpioides.
abstract: Seven new oleanane-type triterpenoid saponins, hydrocotylosides I-VII (1-7), and one known saponin, udosaponin B (8), were isolated from the methanol extract of the whole plants of Hydrocotyle sibthorpioides.The structures of the new compounds were elucidated on the basis of chemical and spectroscopic evidence.
authors.affiliation: School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Shizuoka 422-8526, Japan.
authors.forename: Aki
authors.initials: A
authors.lastname: Matsushita
authors.forename: Yukimi
authors.initials: Y
authors.lastname: Sasaki
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Warashina
authors.forename: Toshio
authors.initials: T
authors.lastname: Miyase
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Noguchi
authors.forename: David
authors.initials: D
authors.lastname: Vander Velde
mesh_terms: D019661:Apiaceae / Q000737:chemistry*; D006868:Hydrolysis; D007564:Japan; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013237:Stereoisomerism; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012503:Saponins; D014315:Triterpenes; C413246:oleanane; D009828:Oleanolic Acid