New aurone glucosides and new phenylpropanoid glucosides from Bidens pilosa.
作者:Yutaka SASHIDA、Kazunori OGAWA、Makoto KITADA、Hiroyuki KARIKOME、Yoshihiro MIMAKI、Hiroko SHIMOMURA
DOI:10.1248/cpb.39.709
日期:——
Three new glucosides of (Z)-6, 7, 3', 4'-tetrahydroxyaurone, (Z)-7-O-β-D-glucopyranosyl-6, 7, 3', 4'-tetrahydroxyaurone, (Z)-6-O-(6-O-p-coumaroyl-β-D-glucopyranosyl)-6, 7, 3', 4'-tetrahydroxyaurone, (Z)-6-O-(6-O-acetyl-β-D-glucopyranosyl)-6, 7, 3', 4'-tetrahydroxyaurone, together with (Z)-6-O-β-D-glucopyranosyl-6, 7, 3', 4'-tetrahydroxyaurone, and two new phenylpropanoid glucosides, 4-O-(6-O-p-coumaroyl-β-D-glucopyranosyl)-p-coumaric acid and 4-O-(2-O-acetyl-6-O-p-coumaroyl-β-D-glucopyranosyl)-p-coumaric acid, have been isolated from the fresh leaves of Bidens pilosa. These structures have been elucidated on the basis of spectral data and chemical correlation.
(Z)-6,7,3',4'-四羟基贝母酮、(Z)-7-O-β-D-吡喃葡萄糖基-6,7,3',4'-四羟基贝母酮的三种新苷、(Z)-6-O-(6-O-对香豆酰-β-D-吡喃葡萄糖基)-6,7,3',4'-四羟基乌酮,(Z)-6-O-(6-O-乙酰基-β-D-吡喃葡萄糖基)-6,7,3',4'-四羟基乌酮、(Z)-6-O-β-D-glucopyranosyl-6, 7, 3', 4'-tetrahydroxyaurone,以及两种新的苯丙苷类,即 4-O-(6-O-对香豆酰-β-D-吡喃葡萄糖基)-对香豆酸和 4-O-(2-O-乙酰基-6-O-对香豆酰-β-D-吡喃葡萄糖基)-对香豆酸,是从 Bidens pilosa 的鲜叶中分离出来的。根据光谱数据和化学相关性阐明了这些结构。