[Studies on chemical constituents from flowers of Apocynum venetum].
OBJECTIVE
To study the chemical constituents of the flowers of Apocynum venetum.


METHODS
Chromatographic methods were used to isolate compounds from the flowers of A. venetum and spectral methods were used to identify the structures of the isolated compounds.


RESULTS
Seven compounds, kaempferol (I), quercetin (II), quercetin-3-O-beta-D-glucoside (III), kaempferol-3-O-beta-D-glucoside (IV), vanillic acid (V), baimaside (VI), daucosterol (III), were isolated from the flowers of A. venetum.


CONCLUSIONS
Compound I, V, VI, VII were obtained from this plant for the first time.
Chen
Long
L
Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China.
Du Li-jun
Ding
Yi
Y
Xing
Dong-ming
DM
Wang
Wei
W
D030010:Apocynum / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D035264:Flowers / Q000737:chemistry*; D044949:Kaempferols / Q000302:isolation & purification*; D012855:Sitosterols / Q000302:isolation & purification*; D014641:Vanillic Acid / Q000302:isolation & purification*
D004365:Drugs, Chinese Herbal; D044949:Kaempferols; D012855:Sitosterols; C006552:kaempferol; D014641:Vanillic Acid; C011015:lyoniside