title: [Study on chemical constituents of Picrasma quassioides].
abstract: To study the chemical constituents of Picrasma quassioides. The chemical constituents were isolated and purified by chromatographic methods over Sephadex LH-20 and silica gel column, and structurally elucidated by spectral analysis, including UV, IR, MS, 1H-NMR, 13C-NMR. Fourteen compounds were obtained and identified as trifolirhizin(1), maackiain(2), 3', 7-dihydroxy-4'-methoxylisoflavone(3), umbelliferone(4), emodin(5), nigakilactone F(6), picrasin B(7),picraqualide B (8),4-methoxy-5-hydroxycanthin-6-one(9), 4,5-dimethoxycanthin-6-one (10),5-methoxycanthin-6-one(11), 11-hydroxycanthin-6-one(12) , 1-methoxycarbonyl-beta-carboline(13), 1-hydroxymethyl-beta-carboline(14). Compounds 1-5 are reported from the first time for the genus Pricrasma.
authors.affiliation: College of Chinese Traditional Medicine, Guangzhou University of Chinese Medicine Guangzhou Jianfeng Union Research Lab for Natural Products, Guangzhou 510006, China.
authors.forename: Chenchen
authors.initials: C
authors.lastname: Zhu
authors.forename: Guihua
authors.initials: G
authors.lastname: Deng
authors.forename: Chaozhan
authors.initials: C
authors.lastname: Lin
mesh_terms: D009930:Organic Chemicals / Q000032:analysis* / Q000302:isolation & purification; D032270:Picrasma / Q000737:chemistry*; D013057:Spectrum Analysis
chemical_list: D009930:Organic Chemicals