仙鹤草根芽中新二氢黄酮醇甙的结构研究

STUDIES ON THE STRUCTURE OF A NEW FLAVANONOL GLUCOSIDE OF THE ROOT-SPROUTS OF AGRIMONIA PILOSA LEDEB

从仙鹤草根芽的苯提取物和丙酮提取物中分得三个化合物。通过理化性质,波谱数据(UV,IR,NMR,MS,GD,GC),化学降解和衍生物制备,两个已知化合物分别鉴定为软脂酸(Ⅷ)和胡萝卜甙(Ⅸ),一个新化合物确定为(2S,3S)-(一)-花旗松素-3-O-β-D-葡萄吡喃糖甙(Ⅹ)。

Three compounds were isolated from benzene and acetone extracts of the root-sprouts of Agrimonia pilosa Ledeb, On the basis of physicochemical properties, spectroscopy (UV, IR, NMR, MS, CD, GC) and chemical degradation, two known compounds were identified as palmitic acid (Ⅷ)and daucosterol (Ⅸ), one new compound was elucidated as (2S,3S)-(-)-taxifolin-3-O-β-D-glucopyranoside (Ⅹ).