title: Triterpenoidal saponins from Cornulaca monacantha.
abstract: From the aerial parts of Cornulaca monacantha, three new triterpenoidal saponins have been isolated and their genuine structures were identified as 3-O-[beta-xylopyranosyl-(1-->3)-beta- glucuronopyranosyl]-30-methylphytolaccagenate (2), 3-O-[beta-xylopyranosyl- (1-->3)-beta-glucuronopyranosyl]-30-methylphytolaccagenate 28-O-beta-gluco-pyranoside (3) and 3-O-[beta-xylopyranosyl-(1-->3)-beta- glucurono-pyranosyl]-30-methylserjanate 28-O-beta glucopyranoside (4) together with nine known saponins of oleanolic acid (5-9), hederagenin (1, 10, 11) and 30-methyl phytolaccagenate (12).
authors.affiliation: Institute of Pharmaceutical Sciences, Faculty of Medicine, Hiroshima University, Japan.
authors.forename: M S
authors.initials: MS
authors.lastname: Kamel
authors.forename: K
authors.initials: K
authors.lastname: Ohtani
authors.forename: H A
authors.initials: HA
authors.lastname: Hassanean
authors.forename: A A
authors.initials: AA
authors.lastname: Khalifa
authors.forename: R
authors.initials: R
authors.lastname: Kasai
authors.forename: K
authors.initials: K
authors.lastname: Yamasaki
mesh_terms: D004534:Egypt; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D010936:Plant Extracts; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010947:Plants, Toxic / Q000737:chemistry*; D012503:Saponins / Q000032:analysis*; D014315:Triterpenes / Q000032:analysis*
chemical_list: D010936:Plant Extracts; D012503:Saponins; D014315:Triterpenes