title: Polyacetylenes and flavonoids from the aerial parts of Bidens pilosa.
abstract: Bidens pilosa is used in various folk medicines such as antimalarial, antibacterial, blood pressure-lowering, and antihyperglycemic agents. Phytochemical investigation of the aerial parts of this plant yielded 10 polyacetylenes and 9 flavonoids, including four new polyacetylenes (5, 7- 9) and one new chalcone glucoside (11). The molecular structures of the isolated compounds were elucidated by comprehensive spectroscopic analysis.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, P R China.
authors.forename: Rui
authors.initials: R
authors.lastname: Wang
authors.forename: Quan-Xiang
authors.initials: QX
authors.lastname: Wu
authors.forename: Yan-Ping
authors.initials: YP
authors.lastname: Shi
mesh_terms: D000480:Alkynes / Q000737:chemistry / Q000302:isolation & purification*; D031176:Bidens / Q000737:chemistry*; D047188:Chalcones / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D035261:Plant Components, Aerial; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D000480:Alkynes; D047188:Chalcones; D010936:Plant Extracts