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Terpenes from and the evaluation of their potential anti-inflammatory activity.
Nat Prod Res
January 2025
Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Key Laboratory of Research and Development for Natural Products, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Medicine, School of Pharmacy and School of Chemical Science and Technology, Yunnan University, Kunming, P. R. China.
Two undescribed compounds, including one monoterpene () and one sesquiterpene (), together with eleven known compounds were isolated from . The structures of the isolated compounds were determined by comprehensive spectroscopic analysis; the absolute configurations of these compounds were determined by ECD calculation. Some of the compounds were tested for anti-inflammatory activity.
View Article and Find Full Text PDFBioactive secondary metabolites from GIZ45-A37 and their anti-inflammatory activity.
Nat Prod Res
January 2025
Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China.
As part of our plan to discover new bioactive ingredients from entomophagous fungi, a new macrolide compound, talarolide (1), and a new bioactive natural product, talarenal (2), with two known compounds, WF-3681 methy ester (3) and aspergillumarin A (4) were isolated from an insect derived strain GIZ45-A37. The structures were determined based on extensive comprehensive spectroscopic (NMR and HR-ESI-MS) analyses and compared with literature values. The relative configuration of 1 was defined by DFT-NMR chemical shift calculations and subsequent DP4/DP4+ probability methods.
View Article and Find Full Text PDFNeuroprotective Indole Alkaloids from the Soil-Derived Fungus sp. XZ8.
J Nat Prod
January 2025
Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China.
A chemical investigation of the soil-derived fungus sp. XZ8 led to the isolation of five new indole alkaloids, trichindoles A-E (-), with diverse architectures, along with seven known analogues (-). Their structures were elucidated by extensive spectroscopic data analysis, and their absolute configurations were determined by single-crystal X-ray diffraction and modified Mosher's method.
View Article and Find Full Text PDFVernonolide A, a Sesquiterpene Lactone with a Unique Carbon Skeleton from .
Org Lett
January 2025
Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawai'i 96720, United States.
A novel sesquiterpene lactone derivative, vernonolide A (), featuring an unprecedented carbon skeleton, along with its plausible biosynthetic precursor, vercinolide I (), and eight known sesquiterpene lactones (-) were isolated and characterized from the whole plants of (L.). The structures of and were elucidated using nuclear magnetic resonance spectroscopic analysis and calculated and experimental electronic circular dichroism spectra.
View Article and Find Full Text PDFPhenylpropanoids and polyacetylenes from the roots of .
Nat Prod Res
January 2025
College of Pharmacy, Chungbuk National University, Cheongju, Korea.
Phytochemical investigation of the roots of yielded a new phenylpropanoid, adenophoride () and a new polyacetylene, adenylene () along with four phenylpropanoids and a polyacetylene. The structures were determined by spectroscopic analysis including NMR, MS, UV and IR. Among the isolated compounds, phenylpropanoids including a new compound showed mild α-glucosidase inhibitory activities.
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