Chemical Constituents of the Root of Rumex Japonicus / 中国药房

ABSTRACT

OBJECTIVE:To study the chemical constituents of the root of Rumex japonicus. METHODS: The root of Rumex japonicus was separated by different methods such as organic solvent method and column chromatography, and its structure was identified by spectrum technology. RESULTS: A total of seven compounds were isolated from the root of Rumex japonicus, which were identified to be as ?-sitosterol, quercetin, rumizin, emodin, physcion, chrysophanol and 1,6,7-trihydroxy-3-methoxyanthraquinone. Among them, quercetin and 1,6,7-trihydroxy-3-methoxyanthraquinone were isolated from this plant for the first time. CONCLUSION: This study provides scientific evidences for further study of the root of Rumex japonicus.