title: Bacopasaponin D--a pseudojujubogenin glycoside from Bacopa monniera.
abstract: A new dammarane-type pseudojujubogenin glycoside, bacopasaponin D, has been isolated from the reputed Indian medicinal plant Bacopa monniera and defined as 3-O-[alpha-L-arabinofuranosyl(I-->2)beta-D-glucopyranosyl]pseudojujub ogenin by spectroscopic methods and some chemical transformations. The 13C signals of the saponin were assigned by DEPT, 1H-1H COSY and HSQC techniques.
authors.affiliation: Indian Institute of Chemical Biology, Jadavpur, Calcutta, India.
authors.forename: S
authors.initials: S
authors.lastname: Garai
authors.forename: S B
authors.initials: SB
authors.lastname: Mahato
authors.forename: K
authors.initials: K
authors.lastname: Ohtani
authors.forename: K
authors.initials: K
authors.lastname: Yamasaki
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D007194:India; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010946:Plants, Medicinal; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D014315:Triterpenes
chemical_list: D012503:Saponins; D014315:Triterpenes; C102129:bacosaponin D