title: Anthraquinone derivatives from Heterophyllaea pustulata.
abstract: From the leaves of Heterophyllaea pustulata two new monomeric anthraquinones, heterophylline (1,6-dihydroxy-7-methoxy-2-methylanthraquinone, 1) and pustuline (2-hydroxy-3-methoxy-7-methylanthraquinone, 2), and one new bianthraquinone, (S)-5,5'-bisoranjidiol [(S)-5,5'-bis(1,6-dihydroxy-2-methylanthraquinone), 3], were isolated. Furthermore, the iridoid glycoside asperuloside and three known flavonoids, quercetin, isoquercitrin, and quercetin-3-O-beta-d-glucosyl-6' '-acetate, were obtained. The structures were determined by analysis of their spectroscopic data and chemical evidence.
authors.affiliation: Farmacognosia, Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, IMBIV-CONICET, 5000 Córdoba, Argentina.
authors.forename: Susana C
authors.initials: SC
authors.lastname: Núñez Montoya
authors.forename: Alicia M
authors.initials: AM
authors.lastname: Agnese
authors.forename: José L
authors.initials: JL
authors.lastname: Cabrera
mesh_terms: D000880:Anthraquinones / Q000737:chemistry* / Q000302:isolation & purification*; D001118:Argentina; D008968:Molecular Conformation; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D019666:Rubiaceae / Q000737:chemistry*
chemical_list: D000880:Anthraquinones; C511570:heterophylline; C511571:pustuline