【摘要】 从翅子树叶中首次分离和鉴定了二个黄酮类化合物:多羟基黄烷(一)-epicatechin(1),多羟基黄酮 Quercetin-3-O-α-L-arabinopyranoside(2);一个五环三萜Lup-20(29)-en-3β-01(3)。更多还原

【Abstract】 Three crystalline compounds were isolated from the leaves of Pterospermum lanceaefolium Roxb. They are(-)-epicatechin(1) ,Quercertin-3-α-L-arabinopyranoside(2)and Lup-20(29)-en-3β-el (3).Their structures were elucidated by1H-NMR, 13 C-NMR, IR, and MS by comparison with the known compounds.更多还原