Aung HT, Saw KT, Latt MM, Vidari G, Komori Y, Takaya Y. Lignans and coumarins from the stem bark of
Alyxia fascicularis (Wall. ex G. Don) Benth. ex Hook. f.).
Nat Prod Res 2024;
38:1616-1623. [PMID:
36441218 DOI:
10.1080/14786419.2022.2151010]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 11/11/2022] [Accepted: 11/19/2022] [Indexed: 11/29/2022]
Abstract
In the first phytochemical investigation of specialized metabolites from the stem bark of Alyxia fascicularis, which is used in different traditional medicines, including those of Myanmar and China, five lignans (1-5) and three coumarins (6-8) were isolated by semipreparative HPLC separations and identified mainly by 1D and 2D NMR spectral analysis. The radical scavenging activity of isolated compounds was tested using the DPPH method. Noteworthy, most lignans exhibited antiradical effects comparable to vitamin C and gallic acid. Instead, compounds 1-8 showed no cytotoxic effect on Hela cell line. A possible biosynthetic pathway to enantiomeric 3 and 4 is suggested.
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