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Four new phenolic compounds from stems and leaves of Hemerocallis citrina (Daylily).

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Název: Four new phenolic compounds from stems and leaves of Hemerocallis citrina (Daylily).
Autoři: Li, Xiao-Xue1,2 (AUTHOR), Yu, Han1,2 (AUTHOR), Song, Shang-Hong1,2 (AUTHOR), Liu, Xiao-Hua1,2 (AUTHOR), Zheng, Yu-Ning1,2 (AUTHOR), Li, Zhao-Hui1,2 (AUTHOR), Chen, Jia-Mei1,2 (AUTHOR), Xing, Chun-Xin1,2 (AUTHOR), He, Xiao-Feng2,3 (AUTHOR) lugh@cdutcm.edu.cn, Lu, Guang-Hua1,2 (AUTHOR) hexiaofeng@cdutcm.edu.cn
Zdroj: Journal of Asian Natural Products Research. Oct2025, Vol. 27 Issue 10, p1408-1418. 11p.
Témata: *PHENOL analysis, *IN vitro studies, *RESEARCH funding, *LIQUID chromatography-mass spectrometry, *NUCLEAR magnetic resonance spectroscopy, *VITAMIN C, *PLANT stems, *PHYTOCHEMICALS, *DESCRIPTIVE statistics, *PLANT extracts, *MEDICINAL plants, *PHENOLS, *ANTIOXIDANTS, *MOLECULAR structure, *SPECTRUM analysis, *FREE radical scavengers, *LEAVES, *DATA analysis software, *REGRESSION analysis
Abstrakt: Four new phenolic compounds, hemerodiphenylethanes A–D (1–4), along with eight known compounds methyl 2,4-dihydroxy-6-[2-(4-hydroxyphenyl) ethyl] benzoate (5), methyl 2,4-dihydroxy-6-(4-hydroxyphenethyl)-3-methylbenzoate (6), neochlorogenic acid (7), isoquercetin (8), isorhamnetin-3-O-β-D-galactoside (9), velutin (10), rutin (11), and (+)-syringaresinol (12), were isolated from the stems and leaves of Hemerocallis citrina Baroni (Daylily). Their structures were elucidated based on HR-ESI-MS, 1D- and 2D-NMR spectra, and ECD calculations. Among them, both compounds 10 and 12 were isolated from the genus Hemerocallis, and compounds 5 and 6 were isolated from this plant species for the first time. These compounds showed antioxidant activity as determined by IC50 values of DPPH and ABTS+ in a radical scavenging experiment. [ABSTRACT FROM AUTHOR]
Databáze: Academic Search Index
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Abstrakt:Four new phenolic compounds, hemerodiphenylethanes A–D (1–4), along with eight known compounds methyl 2,4-dihydroxy-6-[2-(4-hydroxyphenyl) ethyl] benzoate (5), methyl 2,4-dihydroxy-6-(4-hydroxyphenethyl)-3-methylbenzoate (6), neochlorogenic acid (7), isoquercetin (8), isorhamnetin-3-O-β-D-galactoside (9), velutin (10), rutin (11), and (+)-syringaresinol (12), were isolated from the stems and leaves of Hemerocallis citrina Baroni (Daylily). Their structures were elucidated based on HR-ESI-MS, 1D- and 2D-NMR spectra, and ECD calculations. Among them, both compounds 10 and 12 were isolated from the genus Hemerocallis, and compounds 5 and 6 were isolated from this plant species for the first time. These compounds showed antioxidant activity as determined by IC50 values of DPPH and ABTS+ in a radical scavenging experiment. [ABSTRACT FROM AUTHOR]
ISSN:10286020
DOI:10.1080/10286020.2025.2483806