title: A new 1,2-ethanedione benzofurane derivative from Tephrosia purpurea.
abstract: A new 1,2-ethanedione benzofurane derivative, purpdione (1), was isolated from Tephrosia purpurea, together with seven known flavonoids, purpurenone (2), pongamol (3), ovalitenin A (4), karanjin (5), lanceolatin B (6), tachrosin (7) and villosinol (8). The new structure was elucidated based on the analysis of its spectroscopic data. The structures of the known compounds were identified by comparing their spectroscopic data with those reported in the literature. The isolates exhibited marginal ability to inhibit the settlement of barnacle (Balanus reticulatus).
authors.affiliation: a Life Science & Technology School, Zhanjiang Normal University , Zhanjiang , 524-048 , P.R. China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Peng
authors.forename: Yinning
authors.initials: Y
authors.lastname: Chen
authors.forename: Chenghai
authors.initials: C
authors.lastname: Gao
authors.forename: Tao
authors.initials: T
authors.lastname: Yan
authors.forename: Wenhao
authors.initials: W
authors.lastname: Cao
authors.forename: Riming
authors.initials: R
authors.lastname: Huang
mesh_terms: D001572:Benzofurans / Q000737:chemistry* / Q000302:isolation & purification; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry*; D031304:Tephrosia / Q000737:chemistry*
chemical_list: D001572:Benzofurans; D005419:Flavonoids; D010936:Plant Extracts; C000597080:purpdione
keywords: 1, 2-ethanedione benzofurane derivative; Tephrosia purpurea; flavonoids; purpdione