Results 11 to 20 of about 15,271 (271)

Condition-controlled divergent trifluoroalkylation: a diversity-oriented synthesis strategy for efficient construction of CF3-decorated carbazole libraries [PDF]

open access: yesBMC Chemistry
A condition-controlled divergent trifluoroalkylation strategy for carbazole derivatives has been developed via alkylation with trifluoropyruvate. Employing trifluoroacetic acid (TFA) promoter, FeCl3 catalyst, or AgSbF6 catalyst, a wide scope of mono ...
Peng Chen   +4 more
doaj   +2 more sources

Gut Microbiota Analysis in Rats with Methamphetamine-Induced Conditioned Place Preference

open access: yesFrontiers in Microbiology, 2017
Methamphetamine abuse is a major public health crisis. Because accumulating evidence supports the hypothesis that the gut microbiota plays an important role in central nervous system (CNS) function, and research on the roles of the microbiome in CNS ...
Tingting Ning   +3 more
doaj   +1 more source

Melt spinnabilities of thermoplastic paramylon mixed esters

open access: yesHeliyon, 2019
The low thermoplasticities of polysaccharide esters make them unsuitable for melt spinning. In this study, we aimed to overcome this problem by mixed esterification of paramylon, a euglenoid β-1,3-glucan with short- and medium-chain acyl groups, as melt ...
Motonari Shibakami   +3 more
doaj   +1 more source

Diastereoselective Cyclization of a Glycyl-alanine Azomethine to an Imidazolidinone: Determination of the Product Configuration by X-Ray Analysis

open access: yesCHIMIA, 1989
Glycyl-(5')-alanine-esters 1 and 2 can be condensed to the corresponding 4-oxo-imidazolidin-3-yl-propionates 3 and 4, respectively. The diastereomers 3a and 4a are formed preferentially and the configuration was found to be u by single crystal X-ray ...
Martin Egli, Robin Polt, Dieter Seebach
doaj   +1 more source

Design, synthesis, and preliminary biological evaluation of catalpol propionates as antiaging drugs

open access: yesBMC Chemistry, 2019
In this paper, catalpol propionylated analogs (CPs) were designed as drug ligands of glutathione peroxidase (GSH-Px) based on molecular docking (MD) using Surflex-Docking method.
Chunhong Dong   +5 more
doaj   +1 more source

Emerging Trends for Nonthermal Decontamination of Raw and Processed Meat: Ozonation, High-Hydrostatic Pressure and Cold Plasma

open access: yesFoods, 2022
Meat may contain natural, spoilage, and pathogenic microorganisms based on the origin and characteristics of its dietary matrix. Several decontamination substances are used during or after meat processing, which include chlorine, organic acids, inorganic
Ume Roobab   +7 more
doaj   +1 more source

Isolation and Biosynthetic Analysis of Haliamide, a New PKS-NRPS Hybrid Metabolite from the Marine Myxobacterium Haliangium ochraceum

open access: yesMolecules, 2016
Myxobacteria of marine origin are rare and hard-to-culture microorganisms, but they genetically harbor high potential to produce novel antibiotics. An extensive investigation on the secondary metabolome of the unique marine myxobacterium Haliangium ...
Yuwei Sun   +5 more
doaj   +1 more source

Crystal structure of Bfr A from Mycobacterium tuberculosis: incorporation of selenomethionine results in cleavage and demetallation of haem. [PDF]

open access: yesPLoS ONE, 2009
Emergence of tuberculosis as a global health threat has necessitated an urgent search for new antitubercular drugs entailing determination of 3-dimensional structures of a large number of mycobacterial proteins for structure-based drug design.
Vibha Gupta   +4 more
doaj   +1 more source

Effect of calcium propionate on rats with a high-fat hypercaloric diet

open access: yesRegulatory Mechanisms in Biosystems, 2023
Calcium propionate, as an approved food additive, is widely used as a mold inhibitor in food and feed. It is recognized as safe, but when metabolized in the gastrointestinal tract, it can affect the body’s metabolism both directly and indirectly through ...
M. A. Lieshchova   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy