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- Title
Rare diphenylheptanoid-phenylheptanoid hybrids with α-glucosidase inhibitory effects from the pollen of Typha angustifolia.
- Authors
Wang, Chao; Li, Yu-Peng; Gong, Xu; Gan, Li-She; Zhang, Hua
- Abstract
Two rarely occurring diphenylheptanoid-phenylheptanoid hybrid dimers (1 and 2) and one new oxygenated fatty acid (3), as well as two known fatty acid analogues (4 and 5), were isolated from the 70% EtOH extract of the pollen of Typha angustifolia. Their planar structures were established by interpretation of MS and NMR spectroscopic data, and the absolute configurations of 1 and 2 were determined by Mosher's method and quantum chemical TD-DFT calculations of ECD spectra. An in vitro anti-diabetic evaluation of these isolates revealed that compounds 1 and 2 exhibited promising inhibitory activity against α-glucosidase with IC50 values of 11.85 ± 0.69 and 17.06 ± 3.08 μM, respectively. It is the first report on both diphenylheptanoid constituents and α-glucosidase inhibitors from the title plant, which represents a significant phytochemical progress of this herbal species and may serve as a reference for its future medicinal applications.
- Subjects
FATTY acids; TYPHA; POLLEN; DIMERS; SPECIES
- Publication
Natural Product Research, 2025, Vol 39, Issue 1, p20
- ISSN
1478-6419
- Publication type
Academic Journal
- DOI
10.1080/14786419.2023.2248352