Studies on chemical constituents of Rheum glabricaule.
OBJECTIVE
To study the chemical Constituents in the root of Rheum glabricaule.


METHODS
Compounds were isolated by various column chromatographies with sillica gel. Their structures were identified by spectral analysis (MS, 1HNMR, 13 CNMR) and chemical evidences.


RESULTS
Seven compounds were isolated from this plant, including n-hexacosnic acid (I), palmitic acid (II), daucosterol (III), chrysophanol-8-Me ether (IV), citreorosein (V), chrysophanol 8-O-beta-D-glucopyranoside (VI) and 2,5-dimethyl-7-methoxychromone (VII).


CONCLUSIONS
All above compounds are obtained from this plant for the first time.
Wei
Yuhui
Y
Department of Pharmacy, First Hospital of Lanzhou University, Lanzhou.
Wu
Xin'an
X
Zhang
Chengzhong
C
Li
Chong
C
D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification*; D002867:Chromones / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D019308:Palmitic Acid / Q000737:chemistry / Q000302:isolation & purification*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012250:Rheum / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification*
D000880:Anthraquinones; D002867:Chromones; D012855:Sitosterols; D019308:Palmitic Acid; C011015:lyoniside