[Quinic acid esters from herba of Siphonostegia chinensis].
OBJECTIVE
To study the bioactive constituents, quinic acid esters, from Siphonostegia chinensis.


METHODS
The compounds were extracted with solvents, isolated by various column chromatography and identified by spectroscopic methods.


RESULTS
Three quinic acid esters were isolated and identified as 3,4-di-O-caffeoylquinic acid(I), macranthoin F(II), and methyl ester of 3, 4,5-tri-O-caffeoylquinic acid (III).


CONCLUSIONS
All compounds were isolated from Siphonostegia for the first time.
Jiang
Hong-liang
HL
Institute of Medicinal Plant, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094, China.
Xu
Li-zhen
LZ
Yang
Xue-dong
XD
Zhang
Da
D
Yang
Shi-lin
SL
Zou
Zhong-mei
ZM
D002726:Chlorogenic Acid / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D011786:Quality Control; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D028083:Scrophulariaceae / Q000737:chemistry*
D012503:Saponins; C478101:macranthoin F; D002726:Chlorogenic Acid; C478100:3,4-di-O-caffeoylquinic acid