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Piao S, Qi Y, Jin M, Diao S, Zhou W, Sun J, Jin X, Li G. Two new quinones and six additional metabolites with potential anti-inflammatory activities from the roots of Juglans mandshurica. Nat Prod Res 2021; 36:3396-3403. [PMID: 33397154 DOI: 10.1080/14786419.2020.1862831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Two new quinones, 4-(5-hydroxy-1,4-dioxo-1,4-dihydronaphtha-len-3-ylamino)-butyric acid methyl ester (compound 1) and 1,3-dimethoxycarbonyl-8-hydroxy-9,10-anthraquinone (2), and six known compounds (3-8) were isolated from the roots of Juglans mandshurica Maxim., a member of the Juglandaceae family. The chemical structures of the compounds were elucidated by nuclear magnetic resonance spectroscopy and compared with data from the literature. The isolated compounds were evaluated for their ability to inhibit the production of nitric oxide, tumour necrosis factor-α, and interleukin-6 by the mouse macrophage RAW 264.7 cell line after lipopolysaccharide stimulation in vitro. We found that compounds 1-4 exhibited potent anti-inflammatory effects, as indicated by suppression of lipopolysaccharide-stimulated nitric oxide and cytokine production with 50% inhibitory concentrations between 20.09 μM and 27.63 μM. These results identify two novel quinones from J. mandshurica with potential utility as anti-inflammatory compounds.
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Affiliation(s)
- Shengjun Piao
- Yanbian University Hospital, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Yanqiu Qi
- Yanbian University Hospital, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Mei Jin
- Yanbian University Hospital, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Shengbao Diao
- Yanbian University Hospital, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Wei Zhou
- Yanbian University Hospital, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Jinfeng Sun
- Yanbian University Hospital, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Xinglin Jin
- Yanbian University Hospital, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
| | - Gao Li
- Yanbian University Hospital, Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji, P.R. China
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Zhao Y, Zhou W, Diao S, Jiang Z, Jin M, Li G. Phytochemical investigation on the roots of Juglans mandshurica and their chemotaxonomic significance. BIOCHEM SYST ECOL 2019. [DOI: 10.1016/j.bse.2019.103957] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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