title: Matesaponin 5, a highly polar saponin from Ilex paraguariensis.
abstract: The structure of matesaponin 5, a novel saponin isolated from the leaves of the Ilex paraguariensis, was established as ursolic acid-3-0-{beta-D-glucopyranosyl-(1->3)-[alpha-L-rhamnopyranosyl-(1->2)]-alpha-L- arabino pyranosyl}-(28->1)-beta-D-glucopyranosyl-(1->4)-beta-D-glucopyranosyl-(1 ->6)-beta-D-glucopyranosyl] ester.
authors.affiliation: Faculdade de Farmacia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: K H
authors.initials: KH
authors.lastname: Kraemer
authors.forename: A T
authors.initials: AT
authors.lastname: Taketa
authors.forename: E P
authors.initials: EP
authors.lastname: Schenkel
authors.forename: G
authors.initials: G
authors.lastname: Gosmann
authors.forename: D
authors.initials: D
authors.lastname: Guillaume
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D010936:Plant Extracts; D018515:Plant Leaves; D010946:Plants, Medicinal; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D013020:South America; D016339:Spectrometry, Mass, Fast Atom Bombardment; D014315:Triterpenes
chemical_list: D010936:Plant Extracts; D012503:Saponins; D014315:Triterpenes; C100523:matesaponin 5