title: Prenylated anthraquinones and other constituents from the seeds of Vismia laurentii.
abstract: Two new prenylated anthraquinones, laurenquinone A (1) and B (2) were isolated from the seeds of Vismia laurentii together with four known compounds; xanthone V(1) (3), physcion (4), 3-geranyloxyemodin anthrone (5) and friedelin (6). The structures of the new metabolites were determined with the help of spectroscopic data including extensive 2D-NMR spectroscopy. The known compounds were identified by comparison of their physical and spectroscopic data with those reported in the literature. Compounds 1, 4 and 5 exhibited moderate algicidal activity against Chlorella fusca and 3 showed moderate activity against the gram-positive bacterium Bacillus megaterium.
authors.affiliation: Department of Chemistry, University of Dschang, Dschang, Cameroon.
authors.forename: Hippolyte Kamdem
authors.initials: HK
authors.lastname: Wabo
authors.forename: Simeon Fogue
authors.initials: SF
authors.lastname: Kouam
authors.forename: Karsten
authors.initials: K
authors.lastname: Krohn
authors.forename: Hidayat
authors.initials: H
authors.lastname: Hussain
authors.forename: Michel Feussi
authors.initials: MF
authors.lastname: Tala
authors.forename: Pierre
authors.initials: P
authors.lastname: Tane
authors.forename: Teunis van
authors.initials: Tv
authors.lastname: Ree
authors.forename: Qunxiu
authors.initials: Q
authors.lastname: Hu
authors.forename: Barbara
authors.initials: B
authors.lastname: Schulz
mesh_terms: D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D000890:Anti-Infective Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D001410:Bacillus megaterium / Q000187:drug effects* / Q000254:growth & development; D002708:Chlorella / Q000187:drug effects* / Q000254:growth & development; D028084:Clusiaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D010946:Plants, Medicinal / Q000737:chemistry*; D054876:Prenylation; D012639:Seeds / Q000737:chemistry*
chemical_list: D000880:Anthraquinones; D000890:Anti-Infective Agents; C526176:laurenquinone A; C526175:laurenquinone B