Two new anthraquinone glycosides from the roots of Rheum palmatum.
Two new anthraquinone glycosides, named 1-methyl-8-hydroxyl-9,10-anthraquinone-3-O-β-D-(6'-O-cinnamoyl)glucopyranoside (1) and rhein-8-O-β-D-[6'-O-(3''-methoxyl malonyl)]glucopyranoside (2), have been isolated from the roots of Rheum palmatum, together with seven known compounds, rhein-8-O-β-D-glucopyranoside (3), physcion-8-O-β-D-glucopyranoside (4), chrysophanol-8-O-β-D-glucopyranoside (5), aleo-emodin-8-O-β-D-glucopyranoside (6), emodin-8-O-β-D-glucopyranoside (7), aleo-emodin-ω-O-β-D-glucopyranoside (8), and emodin-1-O-β-D-glucopyranoside (9). Their structures were elucidated on the basis of chemical and spectral analysis.
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
Cun
C
Zhang
Li
L
Li
Yong-Qing
YQ
Xiao
Guo-Fang
GF
Tian
Dong-Dong
DD
Chen
Yun
Y
Wang
Yu-Tian
YT
Li
Wen-Qian
WQ
Huang
D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D012250:Rheum / Q000737:chemistry*; D013237:Stereoisomerism
C554711:1-methyl-8-hydroxyl-9,10-anthraquinone-3-O-beta-D-(6'-O-cinnamoyl)glucopyranoside; D000880:Anthraquinones; D004365:Drugs, Chinese Herbal; D006027:Glycosides; C554712:rhein-8-O-beta-D-(6'-O-(3''-methoxyl malonyl))glucopyranoside