[Studies on chemical constituents in the roots of Rabdosia japonica (Burm.f). Hara var. glaucocalyx (Maxin) Hara].
OBJECTIVE
To isolate and elucidate the chemical constituents in the roots of Rabdosia japonica.


METHODS
The constituents were extracted by ether and isolated by chromatography on silica gel and ODS. The structures were determined by IR, H NMR, 13C NMR and MS spectra respectively.


RESULTS
Four compounds were elucidated as glaucocalgxin A, oleanolic acid, ursolic acid and daucosterol.


CONCLUSIONS
Oleanolic acid and daucosterol were isolated from this plant for the first time.
Jin
Y R
YR
Department of Chemistry, Norman Bethune University of Medical Sciences, Changchun 130021, Jilin, China.
Gui
M Y
MY
Wang
B Z
BZ
D045786:Diterpenes, Kaurane; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D037602:Isodon / Q000737:chemistry*; 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; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification; D000097245:Ursolic Acid
D045786:Diterpenes, Kaurane; D004365:Drugs, Chinese Herbal; D009828:Oleanolic Acid; D012855:Sitosterols; D014315:Triterpenes; D000097245:Ursolic Acid; C055124:glaucocalyxin A; C011015:lyoniside