title: New anthracene derivatives from Coussarea macrophylla.
abstract: Five new naturally occurring anthracene derivatives, 1,4,10-trimethoxyanthracene-2-carbaldehyde (1), (1,4,10-trimethoxy-2-anthracen-2-yl)methanol (2), 1,4,8,10-tetramethoxyanthracene-2-carbaldehyde (3), 1,4,10-trimethoxyanthracene-2-carboxylic acid (4), and 1,3-dimethoxy-2-methoxymethylanthraquinone (5), were isolated from Coussarea macrophylla along with three known compounds, 3-hydroxy-1-methoxy-2-methoxymethylanthraquinone (6), scopoletin, and 3-epi-pomolic acid. The structures of 1-5 were determined on the basis of analysis of their spectroscopic data and by total synthesis.
authors.affiliation: Facultad de Ciencias Quimicas, Universidad Central del Ecuador, Quito, Ecuador.
authors.forename: Ximena
authors.initials: X
authors.lastname: Chiriboga
authors.forename: Gianluca
authors.initials: G
authors.lastname: Gilardoni
authors.forename: Ilaria
authors.initials: I
authors.lastname: Magnaghi
authors.forename: Paola
authors.initials: P
authors.lastname: Vita Finzi
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Zanoni
authors.forename: Giovanni
authors.initials: G
authors.lastname: Vidari
mesh_terms: D000873:Anthracenes / Q000737:chemistry* / Q000302:isolation & purification*; D004484:Ecuador; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D009828:Oleanolic Acid / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D024301:Plant Bark / Q000737:chemistry; D019666:Rubiaceae / Q000737:chemistry*; D012603:Scopoletin / Q000737:chemistry / Q000302:isolation & purification
chemical_list: C479803:3-epi-pomolic acid; D000873:Anthracenes; D009828:Oleanolic Acid; D012603:Scopoletin