[Studies on the chemical constituents in root of Rheum rhizastachyum].
OBJECTIVE
To investigate the chemical constituents from the root and rhizome of Rheum rhizastachyum.


METHODS
The compounds were isolated by column chromatography on silica gel, Sephadex LH-20, MCI-gel CHP-20P separately and their structures were elucidated by chemical and spectral technology.


RESULTS
Six compounds were isolated and identified as chrysophanol, emodin, gallic acid, sucrose, 1-O-beta-D-glucopyranosyl-chrysophanols, 1-O-beta-D-glucopyranosyl-emodin.


CONCLUSIONS
All the compounds were obtained from this plant for the first time.
Zhao
Jun
J
College of Pharmacy, Xinjiang Medical University, Urumuqi 830054, Xinjiang, China.
Chang
Jun-min
JM
Du
Nian-sheng
NS
D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification*; D004642:Emodin / Q000737:chemistry / Q000302:isolation & purification*; D005707:Gallic Acid / Q000737:chemistry / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012250:Rheum / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry
D000880:Anthraquinones; D005707:Gallic Acid; D004642:Emodin; C027113:chrysophanic acid