Results 11 to 20 of about 3,798 (181)

Twice as Nice: The Duff Formylation of Umbelliferone Revised [PDF]

open access: yesMolecules, 2021
More efficient and preferably more convenient and greener synthetic solutions in coumarin scaffold functionalization are in steady demand. The Duff ortho-formylation of unsubstituted umbelliferone was revised in this study. The reaction conditions were optimized based upon data from the literature analysis and resulted in unexpectedly rapid ortho ...
Vladislav V. Skarga   +3 more
openaire   +3 more sources

Separation and identification of antibacterial chamomile components using OPLC, bioautography and GC-MS [PDF]

open access: yes, 2012
Components of 50% ethanolic chamomile (Matricaria recutica L.) flower extract, previously found antibacterial in a TLC-bioautographic study, were separated and isolated by the use of on-line OPLC, which consisted of an OPLC 50 BS system, an on-line ...
Héthelyi, Éva B.   +5 more
core   +1 more source

Scopoletin and umbelliferone from Cortex Mori as protective agents in high glucose-induced mesangial cell as in vitro model of diabetic glomerulosclerosis

open access: yesChinese Journal of Physiology, 2021
Two known coumarins, scopoletin (SP) and umbelliferone (UB), were isolated from Cortex Mori (CM). Their structures were elucidated by various spectroscopic analyses.
Yijun Liang   +7 more
doaj   +1 more source

Structural Characterization of Mono and Dihydroxylated Umbelliferone Derivatives [PDF]

open access: yesMolecules, 2020
Coumarin derivatives are a class of compounds with a pronounced wide range of applications, especially in biological activities, in the medicine, pharmacology, cosmetics, coatings and food industry. Their potential applications are highly dependent on the nature of the substituents attached to their nucleus.
Rubén Seoane-Rivero   +8 more
openaire   +5 more sources

Enzymatic Studies of Glucuronide Formation in Impaired Liver I. Assay Methods For the Determination of Glucuronyl Transferase Activity and Uridine Diphosphate Glucuronic Acid Content of Liver Tissue Using 4-Methyl Umbelliferone as a Glucuronide Receptor; Its Application to Needle Liver Biopsy Tissues [PDF]

open access: yes, 1962
An attempt was made to apply the method devised by ARIAS for the determination of liver glucuronyl transferase activity using 4-methyl umbelliferone as a glucuronide receptor to the small amounts of liver tissue obtained by needle biopsy.
Taketa, Kazuhisa
core   +1 more source

Umbelliferone Loaded Nanocarriers for Healthcare Applications

open access: yesCurrent Biochemical Engineering, 2020
Background: Nanotechnology brings innovation in the healthcare sector and revolutionized the therapeutic domain in recent years. It provides better health facilities and bring advancement in the field of science and technology. Nanocarriers are extremely small structure and involve synthesis, designing, application of medicament in the size range of ...
Deepika Singh, Mahfoozur Rahman
openaire   +1 more source

Comparison of various techniques for the extraction of umbelliferone and herniarin in Matricaria chamomilla processing fractions

open access: yesChemistry Central Journal, 2017
Chamomile, a well-known medicinal plant, is a rich source of bioactive compounds, among which two coumarin derivatives, umbelliferone and herniarin, are often found in its extracts.
Maja Molnar   +4 more
doaj   +1 more source

Antifungal activity of davanone-type sesquiterpenes from Artemisia lobelli var. conescens [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
Five tetrahydrofuran sesquiterpenes, so-called davanones, and coumarin umbelliferone isolated from Artemisia lobelii All. var. canescens (DC) Briqu, were tested for antifungal activity. All the compounds inhibited the growth of the applied fungi.
Vajs Vlatka   +5 more
doaj   +1 more source

The antitumor activity of umbelliferone in human renal cell carcinoma via regulation of the p110γ catalytic subunit of PI3Kγ

open access: yesActa Pharmaceutica, 2019
Umbelliferone exhibits extensive pharmacological activity, including anti-immunomodulatory, anti-inflammatory and antigenotoxicity activities. However, its antitumor properties still remain unclear in human renal cell carcinoma (RCC) cells.
Wang Xue   +5 more
doaj   +1 more source

Asymmetrical hybridization and gene flow between Eisenia andrei and E. fetida lumbricid earthworms [PDF]

open access: yes, 2018
Uniformly pigmented Eisenia andrei (Ea) and striped E. fetida (Ef) lumbricid earthworms are hermaphrodites capable of self-fertilization, cross-fertilization, and asymmetrical hybridization.
Bigaj, Janusz   +3 more
core   +1 more source

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