title: Bacopasides III-V: three new triterpenoid glycosides from Bacopa monniera.
abstract: Three new saponins, designated as bacopasides III, IV and V have been isolated from Bacopa monniera WETTST. and their structures have been elucidated as 3-O-alpha-L-arabinofuranosyl (1-->2)-beta-D-glucopyranosyl jujubogenin (1), 3-O-beta-D-glucopyranosyl (1-->3)-alpha-L-arabinopyranosyl jujubogenin (2) and 3-O-beta-D-glucopyranosyl (1-->3)-alpha-L-arabinopyranosyl pseudojujubogenin (3) mainly on the basis of two dimensional (2D) NMR and other spectral analyses.
authors.affiliation: Indian Institute of Chemical Biology, Kolkata, India.
authors.forename: Ajit Kumar
authors.initials: AK
authors.lastname: Chakravarty
authors.forename: Saraswati
authors.initials: S
authors.lastname: Garai
authors.forename: Kazuo
authors.initials: K
authors.lastname: Masuda
authors.forename: Takahisa
authors.initials: T
authors.lastname: Nakane
authors.forename: Nobuo
authors.initials: N
authors.lastname: Kawahara
mesh_terms: D034681:Bacopa; D031176:Bidens; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D035261:Plant Components, Aerial; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D012503:Saponins; D014315:Triterpenes; C476480:bacopaside III; C476479:bacopaside IV; C476478:bacopaside V; C442780:plant extract, Bidens pilosa