Fu KL, Li X, Ye J, Lu L, Xu XK, Li HL, Zhang WD, Shen YH. Chemical constituents of Narcissus tazetta var. chinensis and their antioxidant activities.
Fitoterapia 2016;
113:110-6. [PMID:
27476617 DOI:
10.1016/j.fitote.2016.07.013]
[Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/18/2016] [Accepted: 07/27/2016] [Indexed: 10/21/2022]
Abstract
Two new flavan derivatives tazettones C-D (1-2), one new β-coumaranone (tazettone E, 3), one new flavan (tazettone F, 4), and one new phenylpropanoid (tazettone G, 5), together with six known flavonoids (6-11), were isolated from the bulbs of Narcissus tazetta var. chinensis Roem. Their structures were elucidated by spectroscopic analysis. In addition, the structures of 1-3 were confirmed by single crystal X-ray diffraction. All isolated compounds were tested for antioxidant activity by Cell Counting Kit-8 (CCK-8) assay. Compounds 6-8 and 10-11 exhibited potent antioxidant activity against H2O2-induced impairment in human SH-SY5Y neuroblastoma cells at tested concentrations.
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