title: Bacopaside I and II: two pseudojujubogenin glycosides from Bacopa monniera.
abstract: Two saponins, designated as bacopaside I and II, have been isolated from Bacopa monniera Wettst. and their structures have been elucidated as 3-O-alpha-L-arabinofuranosyl-(1-->2)-[6-O-sulphonyl-beta-D-glucopyranosyl-(1-->3)]-alpha-L-arabinopyranosyl pseudojujubogenin (1) and 3-O-alpha-L-arabinofuranosyl-(1-->2)-[beta-D-glucopyranosyl (1-->3)]-beta-D-glucopyranosyl pseudojujubogenin (2) mainly on the basis of 2D NMR and other spectral analyses.
authors.affiliation: Indian Institute of Chemical Biology, 700 032, Calcutta, India. akchakravarty@iicb.res.in
authors.forename: A K
authors.initials: AK
authors.lastname: Chakravarty
authors.forename: T
authors.initials: T
authors.lastname: Sarkar
authors.forename: K
authors.initials: K
authors.lastname: Masuda
authors.forename: K
authors.initials: K
authors.lastname: Shiojima
authors.forename: T
authors.initials: T
authors.lastname: Nakane
authors.forename: N
authors.initials: N
authors.lastname: Kawahara
mesh_terms: D002018:Bufanolides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes
chemical_list: C442171:12beta-hydroxyscillirosidin; D002018:Bufanolides; D012503:Saponins; D014315:Triterpenes; C442170:bacopaside I; C442169:bacopaside II