title: Two triterpene saponins from Arenaria filicaulis.
abstract: Two novel triterpenoid saponins, Snatzkein C, (3beta, 20-dihydroxylupan-28-oic acid 3-O-[beta-D-galactopyranosyl-(1-->2)-beta-D-glucopyranosyl-28- O-beta-D-glucopyranoside) and Snatzkein D, (3beta, 20-dihydroxylupan-28-oic acid 3-O-[beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl]-28-O-beta-D-++ +glucopyranoside), have been isolated from Arenaria filicaulis. Their structure and conformational behaviour were elucidated by one- and two-dimensional 1H NMR and 13C NMR spectroscopy.
authors.affiliation: National Research Centre, Laboratory of Natural Products, Dokki-Cairo, Egypt.
authors.forename: M H
authors.initials: MH
authors.lastname: Elgamal
authors.forename: H S
authors.initials: HS
authors.lastname: Soliman
authors.forename: D T
authors.initials: DT
authors.lastname: Elmunajjed
authors.forename: G
authors.initials: G
authors.lastname: Tóth
authors.forename: A
authors.initials: A
authors.lastname: Simon
authors.forename: H
authors.initials: H
authors.lastname: Duddeck
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D008958:Models, Molecular; D008968:Molecular Conformation; D008969:Molecular Sequence Data; D019906:Nuclear Magnetic Resonance, Biomolecular; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D012503:Saponins; D014315:Triterpenes; C114778:snatzkein C; C114779:snatzkein D