Flavonoids and polyacetylenes from the aerial parts of Bidens tripartita

Fourteen flavonoids (1-14) and two polyacetylenes (15 and 16) were isolated from the aerial parts of Bidens tripartita. Thirteen compounds (1-7, 9, 11, 12, and 14-16) were isolated from this species for the first time, of which a flavonoid (11) was obtained for the first time from the genus Bidens. The chemotaxonomic significance of these compounds was summarized. (C) 2012 Elsevier Ltd. All rights reserved.