Jin YR, Gui MY, Wang BZ. [Studies on chemical constituents in the roots of Rabdosia japonica (Burm.f). Hara var. glaucocalyx (Maxin) Hara].
Zhongguo Zhong Yao Za Zhi 2000;
25:678-9. [PMID:
12525072]
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Abstract
OBJECTIVE
To isolate and elucidate the chemical constituents in the roots of Rabdosia japonica.
METHOD
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.
RESULT
Four compounds were elucidated as glaucocalgxin A, oleanolic acid, ursolic acid and daucosterol.
CONCLUSION
Oleanolic acid and daucosterol were isolated from this plant for the first time.
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