Verbena officinalis is used as a Chinese folk medicine for the treatment of rheumatism and bronchitis. Herein, four undescribed triterpenes, officinalisoids A-D (1-4), together with thirty-three known compounds (5-37) were isolated from the aerial parts of V. officinalis. The chemical structures of the new compounds were determined by spectrometric data interpretation using NMR, HRESIMS, IR and UV spectroscopy. Biological evaluation results revealed that compound 30 exhibited potential anti-inflammatory activity with IC value of 6.07 μM (CC > 50 μM) and compound 12 showed moderate anti-dengue virus activity with the IC value of 24.55 μM (CC > 50 μM).
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.fitote.2023.105670 | DOI Listing |
Molecules
December 2024
Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Pharmaceutical Sciences, Taizhou University, Taizhou 318000, China.
A comprehensive phytochemical investigation of the twigs/leaves and flower buds of , a rare deciduous shrub native to China, led to the isolation of 39 structurally diverse compounds. These compounds include 11 iridoid glycosides (- and -), 20 triterpenoids (, , and -), and 8 phenylpropanoids (-). Among these, amabiliosides A () and B () represent previously undescribed bis-iridoid glycosides, while amabiliosides C () and D () feature a unique bis-iridoid-monoterpenoid indole alkaloid scaffold with a tetrahydro--carboline-5-carboxylic acid moiety.
View Article and Find Full Text PDFFitoterapia
January 2025
National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Phahonyothin Road, Klong Luang, Pathumthani 12120, Thailand. Electronic address:
Fitoterapia
January 2025
Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China. Electronic address:
Melastoma dodecandrum Lour. is a creeping shrub belonging to the Melastomataceae family. It has been widely used as a medicine and food in South China and is recognized as a safe and effective anti-inflammatory agent.
View Article and Find Full Text PDFPhytochemistry
March 2025
School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Wuhan, 430030, China. Electronic address:
In this study, incartrilactones A (1) and B (2), two previously undescribed schinortriterpenoids (SNTs) possessing an unprecedented 5/5/6/5/7/5-fused hexacyclic skeleton, together with one previously undescribed (3) and one known (4) analogues, were isolated from the stems of Schisandra incarnata Stapf. Their structures with absolute configurations were determined by comprehensive spectroscopic analysis, X-ray crystallography and electronic circular dichroism calculation. Compounds 1 and 2 represent the first class of 14,15-seco-15,17-cyclolancifoartane-type SNTs containing the unusual linkage of ‒C14‒C16‒C13‒C17‒C15.
View Article and Find Full Text PDFPhytochemistry
March 2025
Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China. Electronic address:
Four undescribed cytochalasins (1-4), three undescribed orsellinic acid derivatives (5-7) and two known metabolites including methyl lecanorate (8) and methyl orsellinate (9) were isolated from the solid-state cultivation of a soil-derived fungus Trichocladium asperum SQ2-3 collected in Qinghai-Tibet Plateau. Their structures were elucidated by analysis of NMR (1D and 2D) and mass spectrometry data. The absolute configurations of 1-7 were assigned by a combination of the modified Mosher's method, microscale derivatization and Mo(OAc)-induced circular dichroism experiment.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!