Chemical investigations of the flowers of resulted in the isolation of 12 known compounds (-). Their structures were elucidated by extensive spectroscopic studies and chemical evidence. The structure and absolute configuration of was precisely determined by a combination of 2 D NMR and quantum chemical calculations of ECD spectra analysis. Compounds , , were isolated from the genus for the first time, while -, - were isolated from for the first time. The antibacterial activity of compounds , , , were evaluated.
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http://dx.doi.org/10.1080/14786419.2019.1709189 | DOI Listing |
BMC Complement Med Ther
January 2025
Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Lucknow, India.
The spreading of COVID-19 has posed a risk to global health, especially for lung cancer patients. An investigation is needed to overcome the challenges of COVID-19 pathophysiology and lung cancer disease. This study was designed to evaluate the phytoconstituents in Punica granatum peel (PGP), its anti-lung cancer activity, and in silico evaluation for antiviral potential.
View Article and Find Full Text PDFFish Shellfish Immunol
January 2025
Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan, ROC. Electronic address:
Hybrid groupers become one of the important aquatic animals, but gastric pathogen infection causes losses due to Vibrio sp. infections. Ethyl caffeate (EC), a naturally occurring antioxidant and antibacterial derived from medicinal plant.
View Article and Find Full Text PDFUltrason Sonochem
January 2025
The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006 China; The Institute of Astragalus Industry Research, Qiqihar Medical University, Qiqihar 161006 China. Electronic address:
Traditional extraction under merely one specific solvent was confronted with incomplete phytochemical unscramble problem. In view of this, in order to obtain the overall chemical understanding, we attempted to use Astragalus membranaceus flower, an abundant exploitable resource, to screen a novel extraction mixing scheme via gradient solvents based on the ions' quantity detected in UHPLC-Q-TOF-MS/MS approach. Samples were firstly extracted by different concentration ethanol, and then, six mixing schemes were investigated and one scheme with maximum detected ions was screened out.
View Article and Find Full Text PDFNat Prod Res
January 2025
Laboratory of Natural Products and Heterocyclic Synthesis, Department of Organic Chemistry, Faculty of Sciences, The University of Yaoundé 1, Yaoundé, Cameroon.
From the leaves of , fourteen compounds were isolated and identified: D-mannitol (), a mixture of β-sitosterol () and stigmasterol (), α-amyrin (), betulin (), lupeol (), lupenone (), betulinic acid (), taraxerol (), 3β-(E)-coumaroyltaraxerol (), 3β-(Z)-coumaroyltaraxerol (), ursolic acid (), stigmasterol 3-O-β-D-glucoside (), and β-sitosterol 3-O-β-D-glucoside (). These compounds were analysed through NMR spectroscopy (both 1D and 2D) and by comparing them to previously published data. Compounds , , , and - have been identified from this species for the first time.
View Article and Find Full Text PDFNat Prod Res
January 2025
Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), Santa Maria, Brazil.
(L.) R. Br.
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