Compound extracted from Tibetan medicine eriophyton wallichii with antioxidant activity and extracting method thereof
A technology of antioxidant activity and extraction method, which is applied in the field of compounds with antioxidant activity and their extraction, can solve the problems of no report on the basis of active substances and no report on systematic research, and achieves the effect of simple extraction and separation process and free radical scavenging.
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[0018] The following drawings and preferred embodiments describe in detail the specific implementation and features provided according to the present invention as follows:
[0019] The chemical structural formula of the compound with antioxidant activity obtained by the present invention is:
[0020]
[0021] The compound is a colorless crystal, by ESI-MS m / z: 803[M+Na] + ,825[M+45] - , it can be seen that its molecular weight is 780, combined with 1 H-NMR (C 5 D. 5 N) and 13 C-NMR (C 5 D. 5 N) data, determine that its molecular formula is C 34 h 52 o 20 , the degree of unsaturation is 9;
[0022] δ93.7, δ96.1, δ97.3 are three acetal carbon signals, HMQC shows δ C 140.6 / δ H 6.38 and δ C 104.3 / δ H 4.82 is the carbon-hydrogen signal of the double bond. Combining the HMQC and HMBC spectra, the NMR signal of the aglycon shows that there are two cyclopentane-type iridoid skeletons, one of which is the same as ajugoside, and the other is the same as the sinew The s...
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