[Flavonoids and anthraquinone from Dioscorea bulbifera L].
OBJECTIVE
To study the chemical constituents of Dioscorea bulbifera.


METHODS
Column chromatography with silica gel was employed for the isolation and purification of constituents. The structures were elucidated by UV, IR, MS, 1H NMR and 13C NMR analyses.


RESULTS
Three compounds were obtained and elucidated as 3,7-dimethoxy-5,4'-dihydroxyflavone; 3,7-dimethoxy-5,3',4'-trihydroxyflavone and emodin.


CONCLUSIONS
These compounds were separated from D. bulbifera for the first time.
Li
S S
SS
Department of Phytochemistry, China Pharmaceutical University, Nanjing 210009, Jiangsu, China.
Iliya
I A
IA
Deng
J Z
JZ
Zhao
S X
SX
D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification*; D027742:Dioscorea / Q000737:chemistry*; D004642:Emodin / Q000737:chemistry / Q000302:isolation & purification; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry
D000880:Anthraquinones; D005419:Flavonoids; D004642:Emodin