YANG Tian-long,QIN Ling-ling,FENG Dan,et al.Chemical Constituents of Ethyl Acetate Extract from Ajuga ovalifolia var. calantha[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(21):188-194.
YANG Tian-long,QIN Ling-ling,FENG Dan,et al.Chemical Constituents of Ethyl Acetate Extract from Ajuga ovalifolia var. calantha[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(21):188-194. DOI: 10.13422/j.cnki.syfjx.20202065.
Chemical Constituents of Ethyl Acetate Extract from Ajuga ovalifolia var. calantha
To investigate the chemical constituents from the ethyl acetate extract of 95% ethanol extract from
Ajuga ovalifolia
var.
calantha
.
Method
2
A. ovalifolia
var.
calantha
was percolated with 95% ethanol,and the percolate was concentrated under reduced pressure to obtain the extract. The extract was then dispersed with water and extracted with petroleum ether to obtain the petroleum ether extract fraction and water layer. Then ethyl acetate was used to extract the water layer to obtain the ethyl acetate extract fraction. The Compounds from the ethyl acetate extract fraction were isolated and purified by silica gel,Sephadex LH-20,MCI column,ODS column chromatography and semi-preparative high performance liquid chromatography. Their structures were elucidated by interpretation of NMR,ESI-MS and other spectral evidence.
Result
2
17 Compounds were isolated and elucidated as bakkenolide-E
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Related Author
Ai-ling JIA
Yu-hang ZHANG
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Yu-wen SHI
Meng-cheng JIANG
Jun-ge LI
Ye QIU
Zhi-dong QIU
Related Institution
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State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University