title: Two new labdane diterpene glycosides from flowers of Baccharis medullosa DC.
abstract: From the flowers of Baccharis medullosa DC (Asteraceae) two new ent-labdane-type diterpene glycosides were isolated. Structures were established by application of various spectroscopic techniques. The sugar residues were identified after acid hydrolysis of the isolated products.
authors.affiliation: Intequi-Conicet-Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, Argentina.
authors.forename: D A
authors.initials: DA
authors.lastname: Cifuente
authors.forename: C E
authors.initials: CE
authors.lastname: Tonn
authors.forename: O S
authors.initials: OS
authors.lastname: Giordano
mesh_terms: D001118:Argentina; D019659:Asteraceae / Q000737:chemistry*; D002853:Chromatography, Liquid; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D008401:Gas Chromatography-Mass Spectrometry; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: C449602:2beta-(L-rhamnopyranosyl)-3alpha-angeloyloxy-15-acetyloxy-7,13(14)E-dien-ent-labdane; C449603:2beta-(L-rhamnopyranosyl)-3alpha-angeloyloxy-15-hydroxy-7,13(14)E-dien-ent-labdane; D004224:Diterpenes; D006027:Glycosides