[Studies on chemical constituents of roots of Linum usitatissimum].
OBJECTIVE
To study the chemical constituents from the roots of Linum usitatissimum.


METHODS
The compounds were isolated and purified by silica gel column chromatography, their structures were elucidated by physico-chemical properties and spectroscopic data.


RESULTS
Ten compounds were isolated and identified as vanillic acid (1), syringic acid (2), xanthine (3), vitexin (4), isovanillin (5), (E)-3,3'-dimethoxy-4,4'-dihydroxystilbene (6), tachioside (7), beta-sitosterol and stigmasterol (8 and 9) mixture, berberine (10).


CONCLUSIONS
Compounds 1-3, 5-7, 10 were isolated from L. usitatissimum for the first time.
Sun
Jianlong
J
Key Laboratory of Bioactive Substances and Resources of Chinese Herbal Medicine (Ministry of Education), Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
Deng
Anjun
A
Li
Zhihong
Z
Qin
Hailin
H
D019597:Flax / Q000737:chemistry*; D009930:Organic Chemicals / Q000032:analysis / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry*
D009930:Organic Chemicals