[Chemical constituents from herb of Gueldenstaedtia stenophylla].
OBJECTIVE
To study the chemical constituents of Gueldenstaedtia stenophylla.


METHODS
Various chromatographic techniques were used to separate and purify the constituents and structure determination was mainly based on the analysis of the spectroscopic data.


RESULTS
Seven compounds, including 2', 4, 7-trihydroxy-4'-methoxyisoflavans (1), genkwanin (2), quercetin (3), rutin(4), 12-oleanen-3beta, 22beta, 24-triol (5), betulinic acid (6), and 3, 4-dihydroxybenzoic acid (7) were isolated and identified.


CONCLUSIONS
All these compounds were isolated from the genus Gueldenstaedtia for the first time.
Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
Ke
K
Li
Xiao-ming
XM
Li
Bin-gui
BG
Wang
D019659:Asteraceae / Q000737:chemistry*; D019817:Benzoic Acid / Q000737:chemistry; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D047309:Flavones / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D053978:Pentacyclic Triterpenes; D011794:Quercetin / Q000737:chemistry; D014315:Triterpenes / Q000737:chemistry; D000094062:Betulinic Acid
D004365:Drugs, Chinese Herbal; D047309:Flavones; D053978:Pentacyclic Triterpenes; D014315:Triterpenes; C014568:genkwanin; D019817:Benzoic Acid; D011794:Quercetin; D000094062:Betulinic Acid