| In recent years, some papers have reported the studies of the chemical constituents from the Fagopyrum cymosum (Trev.) Meisn. and the basic researches on the pharmacological action and clinical use. In this paper, we work to have more research for the chemical constituents.Air-dired and ground rhizoma of Fagopyrum cymosum Meisn. was extracted with 95% ethanol. By solvent extraction,various methods of isolation (Si gel CC,PTLC,Sephadex LH-20) and recrystallization , 18 compounds were isolated and purified.By means of spectroscopic analysis and physiochemical properties, 16 compounds of them were identified as: glutinone (F-1), glutinol (F-2), β -sitosterol (F-3), glycerol monopalmitate (F-4), trans-p-hydroxy cinnamic methyl ester (F-5), 3,4-dihydroxy benzamide (F-6), protocatechuic acid (F-7), protocatechuic acid methyl ester (F-8), succinic acid (F-9), luteolin (F-10), quercetin (F-11), quercitrin (F-12), rutin (F-13), (-)-epicatechin (F-14), daucosterol (F-15), n-butyl- β -D- fructopyronoside (F-16). Among them, compounds F-1, F-2, F-4, F-5, F-6, F-8, F-10 and F-16 were isolated from this genus for the first time. |
