title: Monodesmosidic saponins from Herniaria hirsuta.
abstract: Two new monodesmosidic saponins, herniaria saponins E and F, were isolated from the aerial parts of Herniaria hirsuta. On the basis of chemical and spectral evidence, their structures were established to be 2-O-acetyl medicagenic acid 28-O-beta-D-xylopyranosyl- (1-->4)-alpha-L-rhamnopyranosyl(1-->2)-[beta-D-glucopyranosyl(1-->6)]-be ta- D-glucopyranoside (herniaria saponin E, 1) and medicagenic acid 28-O-beta-D-xylopyranosyl(1-->4)-alpha-L- rhamnopyranosyl(1-->2)-[alpha-L-rhamnopyranosyl-(1-->4)-beta-D- glucopyranosyl-(1-->6)]-beta-D-glucopyranoside (herniaria saponin F, compound 2).
authors.affiliation: Department of Chemistry, Faculty of Sciences and Techniques of Errachidia, Morocco.
authors.forename: A N
authors.initials: AN
authors.lastname: Mbark
authors.forename: Z
authors.initials: Z
authors.lastname: Charouf
authors.forename: V
authors.initials: V
authors.lastname: Wray
authors.forename: M
authors.initials: M
authors.lastname: Nimtz
authors.forename: T
authors.initials: T
authors.lastname: Schöpke
mesh_terms: D002240:Carbohydrate Sequence; D002849:Chromatography, Gas; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008745:Methylation; D008969:Molecular Sequence Data; D009005:Monosaccharides / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry*
chemical_list: D009005:Monosaccharides; D012503:Saponins