期刊
PHYTOCHEMISTRY LETTERS
卷 23, 期 -, 页码 149-154出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.phytol.2017.12.005
关键词
Lavandula angustifolia Mill; Phenolic compounds; Antioxidant activity
资金
- International Science and Technology Cooperation Program of Production and Construction Corps [2014BC005]
- Central Asian Drug Discovery and Development Center of Chinese Academy of Sciences
Seven new phenolic compounds: lavandunat (1), lavandufurandiol (2), lavandufluoren (3), lavandupyrones A (4) and B (5), and lavandudiphenyls A (6) and B (7), along with five known compounds, 4-(1-hydroxy-1-methylethyl) benzoic acid (8), methyl 3-(3,4-dihydroxyphenyl)propanoate (9), 3,4, alpha-trihydroxyl-ethyl phenylpropionate (10), rosmarinic acid (11), and isosalvianolic acid C (12), were isolated from the ethyl acetate extract of the remaining material, which was obtained from Lavandula angustifolia Mill., after the distillation of the essential oil. Their structures were elucidated based on extensive spectroscopic analysis including optical rotation, UV, MS, 1D and 2D NMR spectra. The antioxidant activities of all of the compounds were examined by the 1-1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging test. Compared to vitamin C, new compounds 1-3 and 5-7 had stronger activities, which could possibly act as primary antioxidants, and the activity of compound 12 was superior to those of all of the other compounds.
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