Tannins, Flavonol Sulfonates, and a Norlignan from <i>Phyllanthus</i> <i>v</i><i>irgatus</i>
作者:Yu-Lin Huang、Chien-Chih Chen、Feng-Lin Hsu、Chieh-Fu Chen
DOI:10.1021/np970336v
日期:1998.10.1
Investigation of the constituents of Phyllanthus virgatus has led to the isolation of five new compounds, including a norlignan, 2-(3,4-methylenedioxybenzyl)-4-(3,4-methylenedioxyphenyl)-3-butyne-1,2-diol named virgatyne (1); a hydrolyzable tannin, virganin (2); and three flavonoid sulfonates, galangin-8-sulfonate (4), galangin-3-O-beta-D-glucoside-8-sulfonate (5), and kaempferol-8-sulfonate (6). Their structures were established by spectral and chemical methods.