Polyacetylenes from Bidens bipinnata L. and their biological activities

Two new polyacetylenes, (2S) (5E,11E)-tridecadiene-7,9-diyne-1,2,13-triol (1) and (6E,12E)-3-oxo-tetradecadiene-8,10-diyne-14-hydroxyl-1-O-β-d-glucopyranoside (2) along with four known compounds, were isolated from Bidens bipinnata L.