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23.10.2024 | Note

Methoxyflavone glucosides and caffeoyl phenylethanoid glycoside from Lysionotus pauciflorus: their structures and anti-ferroptosis activity

verfasst von: Rena Takizawa, Tomoyo Minamizono, Daisuke Tsuji, Xiao-Jie Yan, Feng-Lai Lu, Xue-Rong Yang, Dian-Peng Li, Reiko Akagi, Yoshiki Kashiwada, Naonobu Tanaka

Erschienen in: Journal of Natural Medicines | Ausgabe 1/2025

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Abstract

Phytochemical investigation on the aerial parts of Lysionotus pauciflorus Maxim. (Gesneriaceae), a medicinal plant used in Guangxi Zhuang Autonomous Region, China, resulted in the isolation of 13 secondary metabolites including two methoxyflavones, six flavonoid glycosides, and five caffeoyl phenylethanoid glycosides. Among these, the chemical structures of previously undescribed metabolites (13) were elucidated to be nevadensin 7-O-β-D-glucopyranosyl-(1 → 2)-β-D-glucopyranoside (1), nevadensin 7-O-β-D-glucopyranosyl-(1 → 6)-β-D-glucopyranoside (2), and 2-(3,4-dihydroxyphenyl)ethyl-1-O-β-D-apiofuranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 3)-β-D-(6'-O-E-caffeoyl)glucopyranoside (3) by detailed spectroscopic and HPLC analyses. Inhibitory activity of isolated compounds against RSL3-induced ferroptosis on human hepatoma Hep3B cells were evaluated.

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Metadaten
Titel
Methoxyflavone glucosides and caffeoyl phenylethanoid glycoside from Lysionotus pauciflorus: their structures and anti-ferroptosis activity
verfasst von
Rena Takizawa
Tomoyo Minamizono
Daisuke Tsuji
Xiao-Jie Yan
Feng-Lai Lu
Xue-Rong Yang
Dian-Peng Li
Reiko Akagi
Yoshiki Kashiwada
Naonobu Tanaka
Publikationsdatum
23.10.2024
Verlag
Springer Nature Singapore
Erschienen in
Journal of Natural Medicines / Ausgabe 1/2025
Print ISSN: 1340-3443
Elektronische ISSN: 1861-0293
DOI
https://doi.org/10.1007/s11418-024-01851-w