3 вынікі
A new 8-O-4' neolignan glycoside was isolated from the stem bark of Tetracentron sinense. Its structure was elucidated as erythro 4',5',7, 9, 9'-pentahydroxy-3-methoxy 8-O-4'-neolignan 3'-O-beta-glucopyranoside on the basis of spectral evidence (MS, IR, 1D and 2D NMR).
Two glycosides, tetracentronsides A and B, were isolated from the stem bark of Tetracentron sinense Oliv., along with ten known compounds, beta-sitosterol, lupeol, betulinic acid, oleanolic acid, vanillic aldehyde, vanillic acid, maslinic acid, huazhongilexin, daucosterol and catechin. On the basis
One novel neolignan (tetracentronsine; 1), one new indole alkaloid (=3-(2-hydroxyethyl)-1H-indole-5-O-beta-D-glucopyranoside; 2), and two new phenol derivatives, 3-{2-[(beta-glucopyranosyl)oxy]-4,5-(methylenedioxy)phenyl}propanoic acid (3) and methyl