[Study on the chemical constituents in roots of Gentiana dahurica].
OBJECTIVE
To systematically study the chemical constituents in the roots of Gentiana dahurica.


METHODS
Various column chromatographic techniques were used for isolation and purification. The structures were elucidated on the basis of spectral data (UV, IR, MS, NMR) and identified by comparing with the authentic substance.


RESULTS
Seven compounds were isolated and identified as: roburic acid (1), oleanolic acid (2), beta-sitosterol (3), daucosterol (4), gentiopicroside(5), swertiamarine (6), sweroside (7).


CONCLUSIONS
Compounds 1, 2 and 4 are isolated from this plant for the first time.
Resource Biology and Modern Biotechnology Key Laboratory in Western China of Education Ministry/College of Life Science Northwest University, Xi' an 710069, China. cql999999@126.com
Qian-Liang
QL
Chen
Zhang-Yan
ZY
Shi
Ya-Hui
YH
Zhang
Jiang-Bin
JB
Zheng
D030012:Gentiana / Q000737:chemistry*; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000737:chemistry / Q000302:isolation & purification*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification*; D013056:Spectrophotometry, Ultraviolet; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
D012855:Sitosterols; D014315:Triterpenes; C025473:gamma-sitosterol; D009828:Oleanolic Acid; C011015:lyoniside