Three species of genus polygonum, namely P. cuspidatum, P. sacchalinense and P. ellipticum are distributed in Korea. Polygonum ellipticum Migo is a perennial herb in Polygonaceous plants. The root of the plant (Polygoni Rhizoma, Hon-Jang) have been u...
Three species of genus polygonum, namely P. cuspidatum, P. sacchalinense and P. ellipticum are distributed in Korea. Polygonum ellipticum Migo is a perennial herb in Polygonaceous plants. The root of the plant (Polygoni Rhizoma, Hon-Jang) have been used as laxative, diuretic and for the treatment suppurative dermatitis in the orienta medicine. As one part of the study for the comparison of the three species in their components, the authors attemped to isolate the anthraquinones and stilbene derivative from the root of P. ellipticum. The methanolic extract of dried root of this plant was fractionated into ether soluble and insoluble fraction and each fraction was applied to column chromatography to isolate above mentioned components. Anthraquinone derivatives were isolated frist; comp. I, mp 204∼205˚(physcion) comp. II, 254∼255˚(emodin), comp. IV, mp 191∼192˚(emodin-8-0-β-glucoside) and comp. III, mp 280∼282˚(β-sitosterol glucoside). They were identified by chemical properties and UV, IR and NMR spectra and by the direct comparison with authentic samples, Stilbene derivative was isolated secondly; comp. V, mp 255∼256˚which was reported to possess antibacterial and antifungal activities.