title: Three new olean-type triterpenoid saponins from aerial parts of Eclipta prostrata (L.).
abstract: Three new olean-type triterpenoid saponins, namely 3-O-(2-O-acetyl-β-D-glucopyranosyl) oleanolic acid-28-O-(β-D-glucopyranosyl) ester (1), 3-O-(6-O-acetyl-β-D-glucopyranosyl) oleanolic acid-28-O-(β-D-glucopyranosyl) ester (2) and 3-O-(β-D-glucopyranosyl) oleanolic acid-28-O-(6-O-acetyl-β-D-glucopyranosyl) ester (3), were isolated from the aerial parts of Eclipta prostrata (L.). Their structures were elucidated based on 1D and 2D NMR and MS spectroscopic data.
authors.affiliation: a Department of Pharmacy , Changzheng Hospital, Second Military Medical University , Shanghai , 200003 , P.R. China.
authors.forename: Feng-Min
authors.initials: FM
authors.lastname: Xi
authors.forename: Chun-Tong
authors.initials: CT
authors.lastname: Li
authors.forename: Jun-Ling
authors.initials: JL
authors.lastname: Mi
authors.forename: Zhi-Jun
authors.initials: ZJ
authors.lastname: Wu
authors.forename: Wan-Sheng
authors.initials: WS
authors.lastname: Chen
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D036601:Eclipta / Q000737:chemistry*; 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*
chemical_list: C000590576:3-O-(2-O-acetyl-beta-D-glucopyranosyl)oleanolic acid-28-O-(beta-D-glucopyranosyl) ester; C000590577:3-O-(6-O-acetyl-beta-D-glucopyranosyl)oleanolic acid-28-O-(beta-D-glucopyranosyl) ester; C000590578:3-O-(beta-D-glucopyranosyl)oleanolic acid-28-O-(6-O-acetyl-beta-D-glucopyranosyl) ester; D004365:Drugs, Chinese Herbal; D012503:Saponins; D009828:Oleanolic Acid