Anthraquinones and triterpenoids from roots of Knoxia roxburghii.
- Author:
Yi-Lang HONG
;
Li MA
;
Yuan-Fang WANG
;
Ju-Feng SUN
;
Gui-Ge HOU
;
Feng ZHAO
;
Jing-Tian HAN
;
Chun-Hua WANG
- Publication Type:Journal Article
- MeSH:
Anthraquinones;
chemistry;
isolation & purification;
Rubiaceae;
chemistry;
Triterpenes;
chemistry;
isolation & purification
- From:
China Journal of Chinese Materia Medica
2014;39(21):4230-4233
- CountryChina
- Language:Chinese
-
Abstract:
Nine compounds were isolated from an ethanol extract of the roots of K. roxburghii by using a combination of various chromatographic techniques including column chromatography over silica gel, MCI gel, Sephadex LH-20, and reversed-phase HPLC. On the basis of physical-chemical properties and spectroscopic data analysis, their structures were identified as munjistin (1), 1-methoxy-3,6-dihydroxy-2-hydroxymethyl-9,10-anthraquinone (2), 1,2,3-trihydroxy-9,10-anthraquinone (3), arjunolic acid (4), hyptatic acid-A (5), hyptatic acid-B (6), 2α,3β,24-trihydroxyurs-12-en-28-oic acid (7), 2α,3β,23-trihydroxyurs-12-en-28-oic acid (8), and daucosterol (9). Compounds 1-9 were obtained from this genus for the first time.
