Chemical constituents of Bidens bipinnata (II)

Object To study the chemical constituents of Bidens bipinnata L Methods Isolation and purification were carried out on silica gel, ODS column, and Sephadex LH 20, HPLC, identified by physicochemical properties and structurally elucidated by spectral analysis Results From n BuOH extract of B bipinnata, 12 compounds were obtained and identified as: 6 O β D glucopyranosyl 6, 7, 3′, 4′ tetrahydroxyaurone (Ⅰ), 6 O (6″ acetyl β D glucopyranosyl) 6, 7, 3′, 4′ tetrahydroxyaurone (Ⅱ), quercetin 3 O β D glucopyranoside (Ⅲ), quercetin 3 O α L rhamnoside (Ⅳ), iso okanin 7 O β D glucopyranoside (Ⅴ), esculin (Ⅵ), (E) 2 hexenyl O β D glucopyranoside (Ⅶ), n hexyl O β D glucopyranoside (Ⅷ), isopentyl O β D glucopyranoside (Ⅸ), n butyl O α D fructofuranoside (Ⅹ), n butyl O β D fructofuranoside (Ⅺ), n butyl O β D fructopyranoside ( ⅩⅡ ) Conclusion All of these compounds, except Ⅰ and Ⅴ, are obtained from the plant for the first time