Bioactive Polyacetylenes fromBidens pilosa

Abstract
From the methanolic extract of the whole plants of Bidens pilosa the new β-D-glucopyranosyloxy-3-hydroxy-6(E)-tetradecen-8,10,12-triyne besides a known polyine has been isolated and identified mainly by IR and NMR methods. The new compound showed overgrowing action against normal and transformed human cell lines in culture.

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