[Studies on the anthraquinones of Cassia siamea].
OBJECTIVE
To study the anthraquinone constituents of the stem of Cassia siamea.


METHODS
The compounds were isolated by chromatography on silica gel, MHPLC, and identified on the basis of spectral analysis including IR, EI-MS, FAB-MS, 1HNMR, 13CNMR and DEPT.


RESULTS
Three compounds were isolated and identified as: chrysophanol (I), chrysophanol-1-O-beta-D-glucopyranoside (II) and 1-[(beta-D-glucopyranosyl-(1-->6)-0-beta-D-glucopyranosyl) oxy]-8-hydroxyl-3-methy-9,10-anthraquinone (III).


CONCLUSIONS
III is a new compound, II was obtained from this plant for the first time.
Lü
T S
TS
Center of Marine Drug Research, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
Yi
Y H
YH
Mao
S L
SL
Zhou
D Z
DZ
Xu
Q Z
QZ
Tong
H F
HF
Zhang
S Y
SY
D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification*; D002366:Cassia / Q000737:chemistry*; D004187:Disaccharides / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
C481922:1-((glucopyranosyl-1-6-O-glucopyranosyl)oxy)-8-hydroxy-3-methyl-9,10-anthraquinone; D000880:Anthraquinones; D004187:Disaccharides; D005960:Glucosides; C481921:chrysophanol-1-O-glucopyranoside; C027113:chrysophanic acid