三七叶皂甙成分的研究

从三七叶中分得五种皂甙,分别命名为三七叶皂甙a_1,a_2,g,h_1和j。三七叶皂甙a_1量太小,未作鉴定。经~(13)C核磁共振,乙酰化衍生物质谱测定及矿酸水解后皂甙元及糖的鉴定,分别确认三七叶皂甙-a_2为20(S)人参皂甙-Rg_3,系首次从三七叶中分得;三七叶皂甙-g为人参皂甙-Rc;三七叶皂甙-h_1为人参皂甙-Rb_3;三七叶皂甙j为三七皂甙-Fc。

STUDIES ON THE SAPONINS OF LEAVES OF PANAX NOTOGINSENG (BURK.)F.H.CHEN

There were five saponins isolated from the leaves of Panax notogin-seng and designated as Sanchinoside-La_1, Sanchinoside-La2 Sanchinoside-Lg, Sanchi-noside-Lh1 and Sanchinoside-Ljrespectively. The amount of Sanchinoside-La_1, was too litter to be identificated. By means of spectral analysis of ~(13)C NMR, MS of acetylated derivative and identification of the sapogenin and sugars from the hydrolysate after mineral acidic hydrolysis, Sanchinosidc-La2 was idetificated as 20(s)-ginsenoside-Rg3, which was isolated from the leaves of Panax notoginseng by first time; Sanchino-side-Lg as ginsenoside-Rc; Sanchichnoside-Lh1 as ginsenoside-Rb3, and Sanchinoside -Lj as notogensenoside-Fc respectively.