[Chemical constituents of roots of Boehmeria nivea].
OBJECTIVE
To investigate the chemical constituents from roots of Boehmeria nivea.


METHODS
The constituents were isolated by repeated column chromatography and preparative liquid chromatography; and their structures were elucidated by chemical properties and spectroscopic analyses.


RESULTS
Seven compounds were isolated and their structures were identified as tormentic acid (1), hederagenin (2), maslinic acid (3), 2alpha-hydroxyursolic acid (4), trans-p-hydroxycinamic acid (5), 2,4,4'-trihydroxychalcone (6), rutin (7).


CONCLUSIONS
Compounds 1-6 were obtained from this genus for the first time.
Xu
Qiongming
Q
College of Pharmacy, SooChow University, Suzhou, China.
Chen
Guoqing
G
Fan
Jinying
J
Zhang
Mengjia
M
Li
Xia
X
Yang
Shilin
S
Li
Xiaoran
X
D032402:Boehmeria / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D009828:Oleanolic Acid / Q000031:analogs & derivatives / Q000032:analysis; D018517:Plant Roots / Q000737:chemistry*; D014315:Triterpenes / Q000032:analysis
D004365:Drugs, Chinese Herbal; D014315:Triterpenes; D009828:Oleanolic Acid; C412811:maslinic acid; C025763:hederagenin